{"candidate_id": "dev-000be754aadbdea42dd3e6a3", "partition": "agent_dev", "positive_items": ["B0BLJWTB36", "B09B45DLQG", "B09RN7GR8F"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home music-production station for composing melodies, recording vocals and instruments, connecting multiple studio devices, and monitoring detailed mixes privately through headphones."}
{"candidate_id": "dev-000dee6b1f217cc8571b9d82", "partition": "agent_dev", "positive_items": ["B00KMA0R38", "B07MZYNZ1C", "B0BT9R8MMV"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I'm setting up a portable electronic keyboard station for practicing and small performances, and need a sturdy adjustable stand, a comfortable height-adjustable seat, and piano-style sustain control that travels easily."}
{"candidate_id": "dev-00111390e756c70296e174b0", "partition": "agent_dev", "positive_items": ["B075VHF7DQ", "B00ZEKBDXY", "B09MMT45P1", "B0C4XQ496G"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m organizing a small live presentation with two speakers and background audio, and need a portable sound setup, a stable elevated stand for my laptop, microphone support, and the necessary XLR connection for easy transport."}
{"candidate_id": "dev-00244870148a7d63e60fd0d7", "partition": "agent_dev", "positive_items": ["B01AAX6KGY", "B079SYCBJ4", "B0B8Z34Y9M"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my Jazz Bass ready for rehearsals and gigs: I need a secure place to keep it upright at home, a protective hard case for transport, and replacement black control knobs to finish the repair."}
{"candidate_id": "dev-006fb5dd8194e9d8b0d164be", "partition": "agent_dev", "positive_items": ["B0BCXRJCL2", "B0821P83KW", "B00N4ZHQ14"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for a guitar-and-bass rehearsal and need an easy way to change guitar keys, a dependable instrument connection for my electric setup, and an accurate clip-on tuner suited to low-string instruments."}
{"candidate_id": "dev-00dbce62f4ad4bd0b7c81f7b", "partition": "agent_dev", "positive_items": ["B0002F761Y", "B09HCRTKL4", "B0B962GTW6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring my acoustic drum kit and need dependable floor-tom footing, a responsive replacement snare setup, and a warm, durable 10-inch rack-tom head."}
{"candidate_id": "dev-0112e9bce66e26df363239ce", "partition": "agent_dev", "positive_items": ["B00EL2LUNO", "B000EEHC0I", "B00AHAFMCO", "B0771PMLFX", "B0BKZ22NHL"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my drum setup for a small live percussion performance and need reliable sticks, precise drumhead tuning, a controlled crash sound, accessible space for hand percussion, and padded tom protection during transport."}
{"candidate_id": "dev-011c16a3122534ee444b9f65", "partition": "agent_dev", "positive_items": ["B005F1N812", "B092LF6RLS", "B07NSWD8BR"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live performance and recording rig: I need a long audio connection, a coiled connection for a boom microphone, and an adjustable stand for elevating a PA speaker."}
{"candidate_id": "dev-014bdd2200045dd7a7a0e2bc", "partition": "agent_dev", "positive_items": ["B07C5G6X1V", "B00KDO28B2", "B095XZJ99J", "B07D5W5X3Z"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing a metal-band rehearsal and need high-gain guitar tones, fresh strings for both guitar and bass, and passive full-range speakers for amplified sound."}
{"candidate_id": "dev-014e4db2803ad1390fc76afe", "partition": "agent_dev", "positive_items": ["B08T2MDRWW", "B093YLCJVH", "B00LMC1FW2"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a comfortable home practice station for learning piano, with a portable 61-key instrument, supportive seating, and a piano-style sustain pedal for realistic playing."}
{"candidate_id": "dev-017727c9b7e1420e198e70c7", "partition": "agent_dev", "positive_items": ["B07PQFCBF7", "B07BQC3Y9X", "B00XUYCXG2", "B001TOI5QM"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m preparing for outdoor trumpet performances and need a practical setup to protect and carry my instrument, organize lots of sheet music, quickly flip through repertoire, and keep pages secure and readable on a music stand in windy conditions."}
{"candidate_id": "dev-01a658b444aae2f4db79e120", "partition": "agent_dev", "positive_items": ["B00315D0E4", "B00AV37F3G", "B0179A4ILK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my guitar ready for regular gigs and want a durable new shoulder strap, a simple way to keep it securely attached, and proper cutters for changing and trimming strings."}
{"candidate_id": "dev-01e75e55a359a58391d5124a", "partition": "agent_dev", "positive_items": ["B07YK57N2M", "B095XZJ99J", "B0B8F6LD9F", "B013ZHK4DM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring an electric guitar and need to smooth sharp fret ends, measure and set the action accurately, protect my setup gauge, install fresh medium-gauge strings, and rewire the controls with vintage-style cloth-covered wire."}
{"candidate_id": "dev-0221200cf2c4731eeab9f2bf", "partition": "agent_dev", "positive_items": ["B07D5W5X3Z", "B008TNAI0M", "B0037BS73Q"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my four-string bass setup with long-scale strings, replacement control knobs, and a compact reverb pedal for a more spacious live sound."}
{"candidate_id": "dev-022d8db038423ac6651069d2", "partition": "agent_dev", "positive_items": ["B09HCVLH2K", "B07YJZGP5X", "B003USERJE", "B00EL26BLA"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my drum kit for tighter, faster kick response, a focused 16-inch tom sound, and a controlled crash accent, while adding a compact low-position stand for close-to-the-floor gear during rehearsals and recording."}
{"candidate_id": "dev-02660ef4306195590d83a429", "partition": "agent_dev", "positive_items": ["B009ST2732", "B01DE4DPSC", "B08JMQR2JK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a small guitar rehearsal setup and need secure storage for several instruments, replacement 42mm slotted nuts for two guitars, and a dependable 15-foot cable for connecting one."}
{"candidate_id": "dev-02b2905b9066c3e67a7c7439", "partition": "agent_dev", "positive_items": ["B0BXT1HLRD", "B07KH5BPW1", "B0BY6P4RRY"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting a right-handed acoustic-electric guitar ready for regular playing and want to adjust the neck, bridge, and nut while adding scratch protection around the picking area."}
{"candidate_id": "dev-02be55d562254843ff12e429", "partition": "agent_dev", "positive_items": ["B07DWLYGKH", "B071RL22PZ", "B0BPLFP5P6"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m restringing my 12-string acoustic guitar and getting it ready for practice; I need coated bronze acoustic strings, a reliable clip-on tuner, and a capo that handles the extra strings so I can change keys without retuning."}
{"candidate_id": "dev-02f9107a5593adf7231dea67", "partition": "agent_dev", "positive_items": ["B079HP2PFK", "B08BSFDY99", "B00IFOTSJW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home guitar practice area where I can safely display several acoustic, electric, or bass guitars, keep assorted picks handy for experimenting, and tune quickly before rehearsing or playing."}
{"candidate_id": "dev-031fa8b434cb4b68e5a1ae6d", "partition": "agent_dev", "positive_items": ["B0B59DLBMD", "B00RVE9X06", "B097JDV3FW"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a simple home recording setup for a live guitar-and-vocal demo, so I need reliable connections for my instrument and microphone, plus durable picks for playing through the session."}
{"candidate_id": "dev-034679dc6819506000f11806", "partition": "agent_dev", "positive_items": ["B001H5OSCI", "B016QUXTZU", "B09G9DVTD3"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a home podcast and need an easy USB microphone for clear voice recording, a pop filter to reduce plosive bursts, and the right adapter for a European-thread mic stand."}
{"candidate_id": "dev-03563dec8a8ff332730a8ba6", "partition": "agent_dev", "positive_items": ["B0B8FZYJJ4", "B08NTMVWC4", "B07FP1G9HT"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m recording a blues-rock guitar track and need gear for expressive slide parts, articulate picking, and accurate nearfield monitoring while I mix the finished production."}
{"candidate_id": "dev-037618b50ccb0940fcab66d1", "partition": "agent_dev", "positive_items": ["B0C6J1BN77", "B096K2LZKH", "B0002D0L5E"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I'm setting up my electric guitar for slide practice and performances, and need a supply of .009 replacement strings, a secure way to attach my strap, and a large glass slide."}
{"candidate_id": "dev-0392fdcf09bc29a3c53ad3c1", "partition": "agent_dev", "positive_items": ["B07BSM4222", "B006OB32HM", "B072226Z5Q"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a heavy acoustic-and-electric guitar demo and need fresh strings suited to each instrument, plus a way to create saturated, aggressive distortion tones for the electric parts."}
{"candidate_id": "dev-03949588f8548cdc94785773", "partition": "agent_dev", "positive_items": ["B01K1EJQ9U", "B074WXM13T", "B0BKZ3GCGR"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a reliable practice-and-gig setup for my acoustic or electric guitar, with comfortable hands-free support, warm-feeling picks, and an easy way to keep spare picks within reach."}
{"candidate_id": "dev-03980f4b926356debcf6dbd8", "partition": "agent_dev", "positive_items": ["B01HCGWS2W", "B00GYHHQ78", "B0BM71QK8M"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m wiring a small rehearsal-room recording setup and need balanced audio connections for microphones, a mixer, and outboard gear, including long cable runs across the room and a short right-angle patch cable for tight spaces."}
{"candidate_id": "dev-039be31c68bb51cf32a086f7", "partition": "agent_dev", "positive_items": ["B07ZMBXVW2", "B003B00PVA", "B09SZK8WJ5"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a left-handed acoustic guitar setup for songwriting and small performances, including a way to amplify the guitar and a sturdy protective case for transport. I’d also like the basic accessories needed to start playing right away."}
{"candidate_id": "dev-03b8598fd1a613d25ba421f7", "partition": "agent_dev", "positive_items": ["B08R5GM6YB", "B08DM9NFLH", "B07T3GZVMD"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a comfortable home guitar practice corner where I can safely display my instrument, restring and maintain it easily, and use proper leg support during longer playing sessions."}
{"candidate_id": "dev-03c936567166be6b7fe8fc38", "partition": "agent_dev", "positive_items": ["B071WMKJMY", "B0BPJ4Q6FJ", "B07C637QCK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up my six-string electric guitar for Nashville-style high-string parts, with a warm, thick slide tone for expressive playing and an accurate clip-on tuner for reliable intonation."}
{"candidate_id": "dev-03ddbd1685eb7003ebf4f1e3", "partition": "agent_dev", "positive_items": ["B0BCXKFMKD", "B07BQVJY7W", "B0BKR2ZM9X", "B00H35YIJE"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refurbishing my Stratocaster for regular gigging and want a coordinated upgrade that improves tuning stability, keeps the instrument securely attached during movement, and refreshes the worn control, pickup, tremolo, and body-facing hardware for a three-single-coil setup."}
{"candidate_id": "dev-043a6c1fcccdb47bd34da92c", "partition": "agent_dev", "positive_items": ["B00JA4T81Y", "B09G5QS1VD", "B088DD5M4V"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refreshing my electric guitar for rehearsals and small gigs, so I need heavier-gauge strings for a fuller, clear tone, reliable picks for playing, and a durable cable to connect the guitar to my amplifier."}
{"candidate_id": "dev-04590bd72137fd611f149c33", "partition": "agent_dev", "positive_items": ["B01DK40R3M", "B0BSGM6CQ9", "B08JMQR2JK", "B0716QP8SR", "B09R3KNKKG"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up an electric guitar rig for rehearsals and small gigs, with heavier-gauge strings, warm overdrive, short right-angle connections for a compact pedalboard, reliable picks, and padded stands to safely hold my guitars between sets."}
{"candidate_id": "dev-048becb6111c9aa5b6fec7a6", "partition": "agent_dev", "positive_items": ["B00FX7MMRO", "B072PQT2DM", "B087Q1GXQ9"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home recording studio to capture detailed vocals and solo instruments, connect the microphone cleanly to my recording equipment, and hear mixes accurately through reliable powered monitors."}
{"candidate_id": "dev-04abb6b0ef187e238aea387e", "partition": "agent_dev", "positive_items": ["B08R5GM6YB", "B00H35YIJE", "B0002E3B78", "B09RTZ26KV"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my acoustic guitar ready for small singer-songwriter gigs and need sound-hole amplification, an easier restringing setup, secure strap attachment, and grippy picks for precise playing."}
{"candidate_id": "dev-04ba7adce0025930d13e194a", "partition": "agent_dev", "positive_items": ["B0BKZ3GCGR", "B0BR2Q367S", "B01K1EJQ9U"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a guitar practice setup with comfortable picks for regular playing, a convenient way to keep them within reach, and a lightweight steel slide for exploring brighter slide tones."}
{"candidate_id": "dev-04d4fb0de5bd7ca9380fbaec", "partition": "agent_dev", "positive_items": ["B004DEHJZ8", "B01DPCONFM", "B00IFOTSJW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I'm refurbishing an electric guitar for a small live gig: replace its worn headstock tuning hardware, connect it reliably to an amp, and have a clip-on tuner for quick, accurate setup and onstage checks."}
{"candidate_id": "dev-04dda17704d12c8581f7e63c", "partition": "agent_dev", "positive_items": ["B01M8N618U", "B0009FJ1NS", "B07MZVLGK2", "B0002H0S62", "B000ARH3M6"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m preparing a portable bass-heavy live gig setup and need fresh strings for both four- and five-string basses, secure stands for my instruments, padded transport for the mixer, and an adjustable way to mount the PA speaker above the subwoofer."}
{"candidate_id": "dev-04df9ad7ad830f60500bbb10", "partition": "agent_dev", "positive_items": ["B0BJ8WDC13", "B07MDPF4SZ", "B01MDU5U60"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m organizing a beginner-friendly woodland music activity and need easy-to-play wind instruments for melody plus a frog-themed rhythm instrument for group call-and-response."}
{"candidate_id": "dev-04ec2c63d40177e4ba7e1042", "partition": "agent_dev", "positive_items": ["B0BK6JP6MW", "B0085545YO", "B00423O25U"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m restringing and setting up my classical guitar for more reliable tuning and comfortable playing, so I need suitable normal-tension ball-end strings, a tool to stretch them in, and lubricant for the nut, saddle, and tuner mechanisms."}
{"candidate_id": "dev-0513e3fe0b24a2a8f92bafb5", "partition": "agent_dev", "positive_items": ["B00NARHNCS", "B0BK5CXZBT", "B093YKLWVN", "B08R5GM6YB"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m giving my acoustic guitar a full restring and setup, so I need supplies to clean and condition the fretboard, polish the finish, efficiently remove and install strings, and accurately check the string action afterward."}
{"candidate_id": "dev-0546c5efe8a299fa3d58efcd", "partition": "agent_dev", "positive_items": ["B00DDVNRV2", "B01DPCONFM", "B08R5GM6YB"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m getting my electric guitar ready for rehearsals and need a comfortable way to wear it, connect it to pro audio equipment, and handle a full restringing, including winding, cutting, and removing bridge pins."}
{"candidate_id": "dev-05905066b2a59735ab119d3e", "partition": "agent_dev", "positive_items": ["B015BKBGZG", "B01KIJ6308", "B00LYFFW9O"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m rewiring my electric guitar with new volume and tone controls and a three-way pickup selector, then want a versatile modeling amp to test and practice the finished setup."}
{"candidate_id": "dev-0592be7d8f97f1e7114b5a41", "partition": "agent_dev", "positive_items": ["B071V5W1JH", "B0056XAWOU", "B0C5LYJXLR", "B00NPAMDQ6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live performance sound system and need reliable long microphone connections, a way to join two XLR inputs, an adapter for an RCA source, and a heavy-duty speaker connection between the PA and speakers."}
{"candidate_id": "dev-0595eaacc1733867a43d2f89", "partition": "agent_dev", "positive_items": ["B0BXBFG6BX", "B0716QP8SR", "B086QM1F75"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a compact electric-guitar rig for rehearsals and small gigs, with two distinct warm overdrive flavors I can switch between and a dependable, interference-resistant cable for connecting everything."}
{"candidate_id": "dev-05a3478327f94114d9a64eea", "partition": "agent_dev", "positive_items": ["B007T8KI6M", "B0BCXKFMKD", "B000AYH8AG"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing my Stratocaster for late-’60s blues-rock tones and need replacement three-single-coil hardware, a fresh 11-hole faceplate, and a pedal to shape highs, mids, and lows."}
{"candidate_id": "dev-05bd527460912d1e287ccc8d", "partition": "agent_dev", "positive_items": ["B015X3CXXA", "B0742RB7JK", "B01AWWYFDI"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a compact bass practice and performance setup where I can shape my tone, create layered loops on the fly, and power several effects from one supply."}
{"candidate_id": "dev-05c031ebea7fff9a6a8b3a91", "partition": "agent_dev", "positive_items": ["B0BHSG5C3G", "B00M9KIV7I", "B008O516JM", "B0752VW93W", "B07C91JT14"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a small live-band recording and rehearsal project with bass, vocals, and instruments: I need reliable tuning, several dynamic microphones, multichannel computer recording, a powerful bass amp head, and safe road transport for the bass."}
{"candidate_id": "dev-05caed8a20c2327844d7f02d", "partition": "agent_dev", "positive_items": ["B0BSGM6CQ9", "B09VT45772", "B0C5LYJXLR"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m recording a home demo with vocals and electric guitar, so I need clear vocal capture, a compatible XLR connection, and fresh heavier-gauge strings."}
{"candidate_id": "dev-0613a560bab9966e10a1ee99", "partition": "agent_dev", "positive_items": ["B0741R8RSK", "B01MRV9Z1Y", "B018FCZKR2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m organizing a rehearsal and gig setup and need protective travel storage for my pointy electric guitar and bass, plus a compact folding stand to keep instruments safely accessible between sets."}
{"candidate_id": "dev-062c9452c2895af2793edef3", "partition": "agent_dev", "positive_items": ["B0C3PVGPYS", "B081382HN4", "B07WGRJR35"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a reliable tenor saxophone setup for practicing and performing, including the instrument itself plus a responsive mouthpiece and durable synthetic reeds for a bold, consistent tone."}
{"candidate_id": "dev-063e4346e46673c4d7dd3faa", "partition": "agent_dev", "positive_items": ["B01LQWRGQG", "B0002F5C7Y", "B018464HN2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a small mindfulness and rhythm circle, with calming resonant tones to open and close the session, plus hand-played drum and jingle percussion for simple group participation."}
{"candidate_id": "dev-065686d4d81358c21529aada", "partition": "agent_dev", "positive_items": ["B0B29LK8QD", "B0BR2G8WYG", "B0002E3D44", "B013JM0CKI"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing my Stratocaster and need clearer hum-free tones, improved string guidance, a steadier tremolo arm, and a compact tube amp head for testing and playing the finished guitar."}
{"candidate_id": "dev-068c1676eee6d1da62d9f9ae", "partition": "agent_dev", "positive_items": ["B016NU779W", "B09YMH6GGF", "B00TH3YKES"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for a jazz ensemble performance and need supplies to clean my bass clarinet, safely park a saxophone between songs, and fine-tune reeds and mouthpiece setup."}
{"candidate_id": "dev-06ec67d9ff91e5fb1fb1c39e", "partition": "agent_dev", "positive_items": ["B0BLLZYYPK", "B08NVVLB16", "B072HH4W6C"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a small live acoustic set where I’ll play guitar with durable picks, sing hands-free for some songs, and use a reliable handheld vocal mic for featured vocals."}
{"candidate_id": "dev-06ef9e0302551868d34ff0b4", "partition": "agent_dev", "positive_items": ["B07Y6TSTS2", "B08LRLRRKM", "B09QQK2SGT"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a comfortable seated guitar practice setup with a stable place for my instrument, hands-free switching for compatible gear, and plenty of flexible picks for playing sessions."}
{"candidate_id": "dev-06f84681b253ef5874b5c53a", "partition": "agent_dev", "positive_items": ["B07DMS2QNL", "B07PPHHG34", "B0951C4RGR"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a beginner ukulele practice corner and need a warm-sounding soprano instrument, comfortable picks for gentle or precise strumming, and a secure wall-mounted holder to keep it safely stored between sessions."}
{"candidate_id": "dev-07174228b6b6dac8313e3c3b", "partition": "agent_dev", "positive_items": ["B00CIO6BEA", "B0B7C52N2F", "B00IFOTSJW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restringing and setting up my 9-string electric guitar for rehearsals, so I need the right heavy-gauge picks and an accurate clip-on tuner for practice and playing."}
{"candidate_id": "dev-072188042870c088f1927c66", "partition": "agent_dev", "positive_items": ["B009A5JA98", "B01878M5JK", "B008Z4Y0QS", "B0010SHU18"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing a two-guitar home recording session: I need to upgrade the Les Paul-style electric with a warmer humbucker, control feedback on my acoustic, repair my worn capo, and connect everything for clean USB recording."}
{"candidate_id": "dev-072f9d233477011898b64faf", "partition": "agent_dev", "positive_items": ["B07593G916", "B0B14LN9H9", "B0792T3CZ4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing an electric guitar and need parts for smoother volume and tone control, a reliable instrument-cable connection, and fretboard leveling so I can complete the setup and playability work."}
{"candidate_id": "dev-075fa0d5a08fa5980df9d5b7", "partition": "agent_dev", "positive_items": ["B072JT59TD", "B07MZYNZ1C", "B07DL3DR2D"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home piano practice station for learning, with realistic weighted keys, a comfortable adjustable seat, and closed-back listening so I can practice quietly without disturbing anyone."}
{"candidate_id": "dev-077a9fa988981125a5c97595", "partition": "agent_dev", "positive_items": ["B0BPLFP5P6", "B07M7XZFYG", "B07WTBV69J"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for a banjo fingerpicking performance and need thumb and finger picks for better control, plus a clip-on tuner to keep the instrument accurately in tune."}
{"candidate_id": "dev-07987176def9b161173d31f7", "partition": "agent_dev", "positive_items": ["B0002F4TKU", "B0BNM3CNTG", "B001U0ORN0"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my percussion setup ready for a pit performance and need a way to adjust the hardware, play softly with controlled sticks, and keep extra sticks and accessories within easy reach."}
{"candidate_id": "dev-07e11593da4451d4163c67a0", "partition": "agent_dev", "positive_items": ["B01JRKPCG0", "B015JTEBN8", "B07C484BHP"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home recording session for a cajon-based acoustic performance and need a compact percussion instrument plus a stereo pair of sensitive mics with adjustable support to capture the rhythms and detailed natural sound."}
{"candidate_id": "dev-082baecb7014eb83fd4fc2bf", "partition": "agent_dev", "positive_items": ["B09396NY1C", "B08KRDKZ6K", "B07NP7HF7X"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact bass practice setup and need a way to connect my instrument reliably, keep it safely supported between sessions, and help protect its strings from tarnish and corrosion."}
{"candidate_id": "dev-0831b880b5921561dcf461c9", "partition": "agent_dev", "positive_items": ["B087HY145N", "B08XFQ6KP9", "B0B594VHF9"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m filming a two-person interview series and need a compact wireless setup that captures both speakers clearly with discreet clip-on microphones, two transmitters, and a dual-channel receiver compatible with my recording device."}
{"candidate_id": "dev-088cf963670220ace9cbd897", "partition": "agent_dev", "positive_items": ["B07QL85Y56", "B093KWXYVZ", "B0BJF97MDV"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my acoustic guitar ready for regular practice and small gigs. I need warm, longer-lasting six-string replacement strings, plus a comfortable adjustable shoulder strap and a way to attach it securely without a heel strap button while keeping the instrument’s traditional look."}
{"candidate_id": "dev-089bc38d540657901b0e8bf9", "partition": "agent_dev", "positive_items": ["B09T7NX5K7", "B071VJQ99L", "B0045V4100"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a home metal recording session and need durable sticks for articulate cymbal work, a double-bass pedal for fast drumming, and a two-channel preamp for shaping microphones or instruments with clean or tube-driven tone."}
{"candidate_id": "dev-08d3f721d783b0100f96704d", "partition": "agent_dev", "positive_items": ["B07N1LX1QC", "B077GK1J7N", "B07FWK4Y9T"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home studio to record expressive electric-guitar parts, shape them with a classic wah effect, mix tracks hands-on in my DAW, and authorize the compatible audio software I’ll use."}
{"candidate_id": "dev-093a867d2938ec96dcf0f325", "partition": "agent_dev", "positive_items": ["B07THV5JNS", "B08FYJWN21", "B06X9KG3HW"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a small live presentation audio setup and need to switch or combine two microphone or keyboard sources, route the selected signal to a mixer or recorder, and connect balanced XLR gear to dual quarter-inch inputs."}
{"candidate_id": "dev-09b320d17d0c56288a11983e", "partition": "agent_dev", "positive_items": ["B00AHAFMCO", "B0BKZ1G3P3", "B0002F6WCS"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing a drum kit for rehearsals and gigs, with durable brush-friendly coated heads for the toms, replacement hardware to keep the bass drum stable, and a padded protective bag for carrying a tom."}
{"candidate_id": "dev-09d73cacdd329b34a58dccd4", "partition": "agent_dev", "positive_items": ["B07C91JT14", "B000VTFQCM", "B0052TT19U"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a small live vocal performance and need several dynamic microphones, sturdy boom stands for the performers, and stereo processing to add clarity, depth, and punch to the sound."}
{"candidate_id": "dev-09d7d08d0da2cb2e48c62d3f", "partition": "agent_dev", "positive_items": ["B00P2AZHL0", "B0C3LDN2TN", "B00NPAMDQ6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting on a small community theater presentation and need hands-free speaking mics, wireless lapel options for presenters, and long XLR connections to route everything into the sound system."}
{"candidate_id": "dev-09e64027a5d9a78966e90a5b", "partition": "agent_dev", "positive_items": ["B087Q1DBSL", "B09B45DLQG", "B0BR2NC7ZL", "B00H35YIJE", "B07KYX3S8X"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a small acoustic-guitar recording session and need to keep the instrument secure on its strap, improve tuning stability, capture its natural sound, send it cleanly to a mixer, and monitor privately."}
{"candidate_id": "dev-09f4445a4954a85fda7ed15d", "partition": "agent_dev", "positive_items": ["B00E9EC2K4", "B00H8BRK0M", "B0BKR9BCVK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m starting a quiet full-size violin practice setup for learning songs and scales, with an electric instrument for headphone practice, beginner finger-position guidance, and durable replacement strings for regular playing."}
{"candidate_id": "dev-0a2597f58cd0fa8a689ba2fc", "partition": "agent_dev", "positive_items": ["B09V91H5XM", "B00VSYN25M", "B0BKZ3GCGR", "B07TDNWYSB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact electric guitar setup for practicing and jamming, with hands-free playing, flexible effects and looping, reliable instrument connection, and comfortable picking for different tones."}
{"candidate_id": "dev-0a893d7a7ce919622065ebc5", "partition": "agent_dev", "positive_items": ["B098PJDQTG", "B0C5HSQKYD", "B0BLLHCQZK"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m expanding a wired musician-monitoring setup for rehearsals and small gigs, with secure mounting for the personal mixer, expanded signal distribution, and a durable multichannel TRS connection between the rack and mixer."}
{"candidate_id": "dev-0a94d06d0f7c91c306bd63f6", "partition": "agent_dev", "positive_items": ["B076SHBWRM", "B07TD9NX9F", "B006BST39E"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a portable outdoor vocal rig and need a way to cut wind and breath noise, swap the microphone quickly, and assemble compact instrument cables with right-angle connectors."}
{"candidate_id": "dev-0ae0d51018ea8b2479403d25", "partition": "agent_dev", "positive_items": ["B007MY5BDI", "B07X2LN3FV", "B0BPLFP5P6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up my six-string acoustic guitar for practicing blues and roots music, with bright easy-playing strings, reliable tuning, and warm, expressive slide tones."}
{"candidate_id": "dev-0ae9c1751d7295673e7edffb", "partition": "agent_dev", "positive_items": ["B000AC6DVS", "B0BL34JMKZ", "B079T9KWGQ", "B00423O25U"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m preparing several guitars for a recording session: restringing a classical guitar, keeping a replacement fourth string handy, fitting a 12-string acoustic for warm fingerstyle parts, and maintaining safe humidity for the instruments."}
{"candidate_id": "dev-0b442ec8b1836123cb408a21", "partition": "agent_dev", "positive_items": ["B07T3GZVMD", "B08JMQR2JK", "B00IFOTSJW"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a small guitar practice and performance area where I can tune accurately, sit comfortably with proper foot support, and keep several guitars safely organized and ready to play."}
{"candidate_id": "dev-0b6934db9d3f87874b48ede3", "partition": "agent_dev", "positive_items": ["B07DWY7R2X", "B09BF8XDF4", "B07DWRNL54"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for a long rehearsal and recording session with my acoustic guitar, electric guitar, and five-string bass, and need durable, coated replacement strings in suitable gauges for each instrument."}
{"candidate_id": "dev-0b6dea68c090375c6d2c22bf", "partition": "agent_dev", "positive_items": ["B09V9172YN", "B06XV6TLG4", "B0BPLFP5P6", "B095XCZXNQ"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a portable guitar practice setup for traveling and late-night sessions, with a padded mini-jumbo case, silent headphone practice and effects, reliable tuning, and picks that are easy to see in low light."}
{"candidate_id": "dev-0be4777e3da0a669f709c3b5", "partition": "agent_dev", "positive_items": ["B017808XKS", "B00RDK92GS", "B077YVKN89"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m starting a ukulele practice and songwriting project and need an easy clip-on tuner, a clear reference for learning chords across keys, and a small chord stamp to mark diagrams in my notebook."}
{"candidate_id": "dev-0bf16fe8733d869c224c9862", "partition": "agent_dev", "positive_items": ["B00JL5I61A", "B00CPLODUU", "B07PPHHG34"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact acoustic-guitar practice corner and need a safe wall-mounted way to store the instrument, quick key changes without retuning, and sturdy picks for fast playing."}
{"candidate_id": "dev-0c056d0a36cb1c35d26faf4d", "partition": "agent_dev", "positive_items": ["B075MN34F6", "B0C3PVHGPQ", "B01DE4DEGK", "B0BSCF2FD7", "B01DBS3WJS"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a compact seated music-making setup for playing bass lines and layered keyboard parts while also capturing the natural sound of my acoustic guitar, with adjustable support, a second keyboard level, and balanced connections between the instruments and audio gear."}
{"candidate_id": "dev-0c1ad9e79bdf6b89f7dd026e", "partition": "agent_dev", "positive_items": ["B07PZDBGCR", "B06XPFFQ2Q", "B07B4ZZVDV"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for regular saxophone practice and need dependable alto reeds for responsive playing, along with gentle pull-through cleaning and moisture removal to keep my tenor saxophone clean and playing consistently."}
{"candidate_id": "dev-0c2e05a515ba739b162b99f6", "partition": "agent_dev", "positive_items": ["B0158GWWJ2", "B0010SHU18", "B00ZECVBGG", "B0002VB8AS", "B0BJF97MDV", "B0BSBXR8HR"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my steel-string acoustic ready for amplified live gigs and need a complete setup for restringing and maintenance, comfortable hands-free playing, quick key changes, articulate picking, and controlling feedback around a pickup."}
{"candidate_id": "dev-0c3652222a06f0986b881833", "partition": "agent_dev", "positive_items": ["B09KZLRHQW", "B07Y6TSTS2", "B0BR2NW577", "B01M5CXH65"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I'm upgrading my live electric-guitar setup: I want to rewire a Strat-style instrument for more pickup combinations, connect balanced audio gear, run a dependable guitar-to-amp cable, and add a latching status-indicating foot controller for compatible equipment."}
{"candidate_id": "dev-0c4a00b4b88e5d2343427c4b", "partition": "agent_dev", "positive_items": ["B0B2T32W46", "B0BKZ2S4PC", "B09HL6MZ45", "B0BK6S7QF4", "B0BKZ1G3P3", "B09HCVK9HL", "B09F9B8DV9"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m rebuilding my drum kit and need a coordinated set of heads for small and large toms, a durable coated tom setup, responsive snare batter and resonant heads, and a bass resonant head with adjustable low-end control, plus simple overtone damping for easier tuning."}
{"candidate_id": "dev-0c58bd012c021869641b7c35", "partition": "agent_dev", "positive_items": ["B08R5GM6YB", "B09RTZ26KV", "B0146YTJOI", "B09G5KDVWW", "B0179A4ILK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my electric guitar ready for upcoming rehearsals and need supplies to restring it efficiently, keep the strap secure, refresh its finish, and improve pick control while playing."}
{"candidate_id": "dev-0c8546526a7c2138dc015ae4", "partition": "agent_dev", "positive_items": ["B07DLC8CQZ", "B00CGFRJ2Y", "B000M74WXM", "B07Y2R3Z2D", "B0006IQNES"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my mandolin for practice and recording sessions and need fresh bright-sounding strings, comfortable picks for different playing styles, a capo for quick key changes, and a way to keep sheet music open while I play."}
{"candidate_id": "dev-0c85d214c721207190e7b968", "partition": "agent_dev", "positive_items": ["B07DKXHD23", "B08R4N5CD4", "B017NT392Q", "B07N5J3GTB", "B07DVVS116"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live acoustic performance and need clear vocal pickup, wireless freedom for my guitar, a stable hands-free mic position, handheld rhythm accompaniment, and compact mono connections for linking the audio equipment."}
{"candidate_id": "dev-0cbeec7aae0e1e3bf3a4071e", "partition": "agent_dev", "positive_items": ["B012P7NEW6", "B08JMQR2JK", "B00646MZHK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small guitar rehearsal space and need a way to keep several instruments safely supported, tune them accurately, and have plenty of dependable picks available for playing."}
{"candidate_id": "dev-0ccd7ec3ce2eeb03a0e1c5b8", "partition": "agent_dev", "positive_items": ["B0C159Y982", "B00HJOTNBC", "B000B6FADU", "B0002F4UYU"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m assembling a compact acoustic Latin/world-music setup for an unplugged performance, with a seated box drum for the rhythmic foundation and handheld percussion for bright scraping, clicking, and shaking accents."}
{"candidate_id": "dev-0cfb5e323a9de56194782278", "partition": "agent_dev", "positive_items": ["B000EENC52", "B00KG7CB2C", "B09TXQ22KG"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m tuning up my small drum kit for practice and gigs, needing a replacement resonant head, durable high-power sticks, and hardware pieces that protect and properly seat my cymbals."}
{"candidate_id": "dev-0cfb6a0b74f1671fbd64d105", "partition": "agent_dev", "positive_items": ["B0BXSYL7X8", "B0732H8P8S", "B00145EVJ6"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m assembling a compact live sound rig for small gigs and rehearsals, with a portable rack setup to hold the amplifier, organized power distribution, and a way to monitor incoming voltage."}
{"candidate_id": "dev-0d10f540e90be964fd2f5909", "partition": "agent_dev", "positive_items": ["B015JTEBN8", "B0BB7ZN8XH", "B091MZPYBQ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m organizing a small outdoor karaoke fundraiser and need portable amplified sound with two speakers, sturdy speaker supports, an adjustable stand for the handheld microphone, and a windscreen to reduce wind noise and protect it from moisture."}
{"candidate_id": "dev-0d1655a193c0698691e4f5ca", "partition": "agent_dev", "positive_items": ["B07M6B3RDW", "B019LR2XTS", "B0BPKH7FJ2", "B07HM8Q5FR", "B0BPJ4Q6FJ", "B0BTC9YJ2W", "B07FP9CNQB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small acoustic-country rehearsal with two guitars and banjo, so I need fresh strings for each instrument, accurate clip-on tuning, secure multi-instrument storage, and several adjustable microphone positions with a handy accessory shelf."}
{"candidate_id": "dev-0d57b57ff7505aa6f6fa2903", "partition": "agent_dev", "positive_items": ["B08DBDD6CM", "B0771SZT32", "B01DE4DPSC"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a small funk bass recording session and need expressive envelope-filter sounds, reliable instrument connections between my bass and rig, plus an XLR cable for routing a microphone into a mixer or recorder."}
{"candidate_id": "dev-0d630784d981488bdef3eb1e", "partition": "agent_dev", "positive_items": ["B00A2H01IW", "B0BTC9YJ2W", "B001GDJQTG"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing for a folk and blues jam and need to refresh my 12-string acoustic, shift its pitch easily, and add a D-key harmonica for playing along."}
{"candidate_id": "dev-0d671d7f3edfd8ddc01ad3bd", "partition": "agent_dev", "positive_items": ["B0002H0S62", "B0BXT423KN", "B0BKKSQFDG"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restringing my acoustic guitar, electric guitar, and five-string bass for a recording project and want durable coated guitar strings, plus flexible stainless bass strings with bright, punchy tone and balanced playability."}
{"candidate_id": "dev-0d8cd5062d4806f4862f5d21", "partition": "agent_dev", "positive_items": ["B0BPNKJQRF", "B08669L2VF", "B01HN811CW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a portable karaoke and DJ sound system for a community event, with a mixer for multiple audio sources and effects, a wired vocal microphone, and elevated speaker placement for the audience."}
{"candidate_id": "dev-0db7158e51853fa8ff4cff8b", "partition": "agent_dev", "positive_items": ["B00B5LDWVW", "B0BKZ6M28F", "B07PSWC1XY"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home rehearsal and recording space for drum-and-vocal demos, needing clean vocal recording, reliable hi-hat foot control, and protection for a bass drum head used with double pedals."}
{"candidate_id": "dev-0dbb8550e47997074e5576f9", "partition": "agent_dev", "positive_items": ["B008S8ACYA", "B0BCXRXTNY", "B00CALHPGY", "B00A5VHK2U", "B0B8YWRJVY", "B01DE4DPSC"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing my Telecaster for colorful live performances and need parts to update its appearance and controls, secure the new hardware, add reliable strap retention, restring it with UV-reactive strings, and connect it to my amp."}
{"candidate_id": "dev-0dd191f03d5224938130d174", "partition": "agent_dev", "positive_items": ["B00GJ3PCM8", "B003LPTAZ2", "B0001Z99R4"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a simple home vocal-recording station and need clean microphone signal processing with phantom power, reliable closed-back monitoring, protection from plosive sounds, and the right XLR connection for recording without distracting room noise."}
{"candidate_id": "dev-0dd333e5513dbaf41cf1f0b9", "partition": "agent_dev", "positive_items": ["B01N3MQSPL", "B00TOKTBL6", "B0BXF5ZQTL"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m organizing a small outdoor karaoke fundraiser and need a portable sound setup with amplified stereo speakers on stands, hands-free microphone positioning, and two wireless handheld mics so multiple singers can perform comfortably."}
{"candidate_id": "dev-0dd970e9a8a4377fdb2e5e12", "partition": "agent_dev", "positive_items": ["B00162ZRHM", "B0B81D5BB4", "B007X60AZ4", "B0BHG58G2F", "B004MNGQ86"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing my electric guitar and 5-string bass for a rehearsal setup, with fresh strings for both, replacement hardware for the bass bridge and guitar jack, and short right-angle leads for my pedalboard."}
{"candidate_id": "dev-0df3f9b281c8560b1e040077", "partition": "agent_dev", "positive_items": ["B01DE4D4LU", "B01DE4DTAG", "B0B8LK7MTH"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m putting together a basic electric-guitar setup for rehearsals and small gigs, needing hands-free support, a long connection to the amp, and a short cable for tightly spaced pedals."}
{"candidate_id": "dev-0e0694cdb16bbce39da98d4b", "partition": "agent_dev", "positive_items": ["B09Y1X5BSC", "B01DE4DPSC", "B09RN7GR8F"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home recording station where I can connect my electric guitar, record instruments through multiple inputs, and hear accurate mixes through near-field speakers while producing songs."}
{"candidate_id": "dev-0e0f840f4646e3c001796fde", "partition": "agent_dev", "positive_items": ["B08T2MCGV3", "B0007OGTGS", "B000BSMKPY"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a compact interview and podcast recording station for a small rack, with hands-free monitoring and clear host speech, discreet guest microphone capture, and a secure shelf for audio equipment that doesn’t have rack ears."}
{"candidate_id": "dev-0e780655755e59c3a5d1313b", "partition": "agent_dev", "positive_items": ["B08BFSRW2B", "B07CYRYQ8G", "B06X9KG3HW"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m putting together a small multi-microphone recording setup and need reliable balanced XLR connections, plenty of simultaneous inputs, and a way to route one microphone signal to two inputs."}
{"candidate_id": "dev-0e944d913794f1ba68bcdd43", "partition": "agent_dev", "positive_items": ["B01M12WWNX", "B00005ML71", "B0BK6T14KN", "B07MZYNZ1C"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a portable 76-key keyboard practice rig and need adjustable support, a comfortable seat, hands-free sustain control, and padded protection for carrying everything between sessions."}
{"candidate_id": "dev-0e9fb99875c8b8929d3aeae5", "partition": "agent_dev", "positive_items": ["B08DBDD6CM", "B003GEBGA0", "B009KXWF24"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small karaoke and open-mic night and need a reliable vocal setup with flexible connections, enough cable to reach the mixer, and protection against pops, breath, and wind noise."}
{"candidate_id": "dev-0ebdb8058c5e85e44b2dfc14", "partition": "agent_dev", "positive_items": ["B0B8Z6HSK5", "B0BCXRJCL2", "B07MVZ2KTH", "B09Y66BXKN", "B09R3RQXC5"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m building a compact, gig-ready bass pedalboard for flexible live setups, with reliable instrument connections, silent tuning, hands-free tone shaping, and the ability to route my signal between two amplifiers while keeping the pedals and cabling organized for transport."}
{"candidate_id": "dev-0ec373eb8acae3a0e3b570c2", "partition": "agent_dev", "positive_items": ["B000XPRY1K", "B00JL5IQTW", "B07XP6MHQT"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my acoustic guitar ready for casual gigs and want comfortable adjustable support, a quick way to detach the strap, an easy one-handed capo for changing keys, and picks for strumming."}
{"candidate_id": "dev-0ec9d4b875bc85eec52bd3be", "partition": "agent_dev", "positive_items": ["B0BSGM6CQ9", "B001W99HE8", "B079TLFL33"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my electric guitar for a small recording session and need heavier-gauge strings, secure strap attachment, and a dynamic microphone for capturing the instrument."}
{"candidate_id": "dev-0eea83c4126fe7a532ad74f9", "partition": "agent_dev", "positive_items": ["B0002GNVFI", "B075KXPBJ4", "B00WJ3GS16"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m recording a polished home demo with bass and ukulele parts, so I need to refresh the bass strings, change ukulele keys cleanly, and capture, monitor, and mix both instruments with vocals on my computer."}
{"candidate_id": "dev-0f0deaa2a0d8658f88c1febb", "partition": "agent_dev", "positive_items": ["B0002MSQVQ", "B0BPJ4Q6FJ", "B0723CVMGC"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m preparing a live guitar setup for a studio-style Nashville tuning part, versatile rock distortion and amp-free direct connection to the PA, so I can get convincing amplified tones without bringing a full amp."}
{"candidate_id": "dev-0f568a1168d4ea18b57fd245", "partition": "agent_dev", "positive_items": ["B08JMQR2JK", "B0BKZ3GCGR", "B00646MZHK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m organizing a small guitar rehearsal and need to keep several guitars safely within reach, tune them accurately between songs, and have comfortable picks ready for playing."}
{"candidate_id": "dev-0f71b060b1c56f798c5460ce", "partition": "agent_dev", "positive_items": ["B0BJF97MDV", "B0064RTS0G", "B0002GX7XY", "B08B6BR4KG"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my electric guitar ready for regular playing: I want to restring it for a bright tone, add removable inlay decoration, and have a comfortable adjustable way to play while keeping plenty of reliable picks on hand."}
{"candidate_id": "dev-0fa89c1ea605731e3fc69df8", "partition": "agent_dev", "positive_items": ["B074DXBQWC", "B0027V760M", "B07176XWLD"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up my electric guitar for a small live performance and need an easy way to tune it, extend the instrument cable, and send a clean balanced signal to the mixer while avoiding ground noise."}
{"candidate_id": "dev-0fca61d290754ecbca1bf241", "partition": "agent_dev", "positive_items": ["B00OPB1GLW", "B07QL29XXZ", "B07SRJ9ZB8"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing my guitar for regular playing and need to polish the frets, tune it accurately with a clip-on contact microphone, and play while wearing an adjustable strap."}
{"candidate_id": "dev-0ff548aa50819f1a813477d3", "partition": "agent_dev", "positive_items": ["B00T8T31AA", "B00AHAFMCO", "B00LOAAME4"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m assembling a compact drum setup for rehearsals and small gigs, and need secure padded protection for my tom, stable hardware to mount a tom and cymbal together, plus a portable non-slip surface to keep the kit from shifting."}
{"candidate_id": "dev-0ff9aeab7d83a97930c603dd", "partition": "agent_dev", "positive_items": ["B00UZ7JADG", "B00RVE9X06", "B08XYTW5S2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small acoustic open-mic performance at home and need a stable stand for my guitar, a long cable to connect it to an amp, and a handheld vocal mic for singing."}
{"candidate_id": "dev-10292bfde1dc655cab27b858", "partition": "agent_dev", "positive_items": ["B0087UPVHC", "B00HZH4D04", "B004BIUCN2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable electric guitar setup for rehearsals and small gigs, with hands-free playing support, comfortable seated positioning, and reliable protection while carrying everything between locations."}
{"candidate_id": "dev-106988888bc9ab85715de940", "partition": "agent_dev", "positive_items": ["B001BAMOAM", "B000NAXCC0", "B00R7J4116", "B015WYRWYA"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for small live singer-songwriter gigs and need a portable setup for clear vocals, amplified guitar with expressive foot-controlled tone shaping, and safe transport for my dreadnought between venues."}
{"candidate_id": "dev-1084edff75fd804279c99edb", "partition": "agent_dev", "positive_items": ["B0713XZR7B", "B008BPI2OW", "B01KINJI2O"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a 12-string acoustic guitar setup for songwriting and gigs, with a protective case for transport and a faster way to change strings using my cordless drill."}
{"candidate_id": "dev-109571fb08c67067736a65b8", "partition": "agent_dev", "positive_items": ["B0BHSG5C3G", "B09S2VB3KW", "B08JMQR2JK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for a small guitar rehearsal and need reliable tuning, secure places to rest multiple guitars between songs, and durable picks for steady strumming."}
{"candidate_id": "dev-10a144ef1fbba06de794d0ac", "partition": "agent_dev", "positive_items": ["B005O6OD0S", "B098KXQJVY", "B07GFH8NTB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a guitar-heavy recording session with my 7-string electric and acoustic guitar, and need fresh long-lasting strings for both plus an expressive wah effect for the electric parts."}
{"candidate_id": "dev-10a4e728ab54b760ac236714", "partition": "agent_dev", "positive_items": ["B0CF949M9H", "B0032UYJKW", "B075JNW6BK", "B01DK40R3M"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring a Strat-style guitar for vintage clean and mildly driven tones, building a compact effects pedalboard, and recording the finished sound, so I need the guitar upgrade, reliable connections, and a microphone for the amp."}
{"candidate_id": "dev-10a8d57ba006b514659cc12f", "partition": "agent_dev", "positive_items": ["B015JTEBN8", "B00KMA0R38", "B00JL5IKKC"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I'm setting up a portable music rehearsal and small performance rig for keyboard, guitar, and vocals, so I need stable adjustable support for the keyboard, a collapsible boom stand for the microphone, and comfortable medium picks for playing guitar."}
{"candidate_id": "dev-10c324206c82f25af77254c2", "partition": "agent_dev", "positive_items": ["B00YS4X3E4", "B000CZ0RII", "B0C38LLMXG"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m assembling a compact studio rack for routing microphones and instruments cleanly, with a shallow protective case, flexible balanced patching, and color-coded TRS connections that will make setup changes and troubleshooting easier."}
{"candidate_id": "dev-10e1f7eb415ec86dc4d1733b", "partition": "agent_dev", "positive_items": ["B01M0MT2JJ", "B07SR3TDZQ", "B071VSZMMG", "B07PPHHG34", "B0002F71S2", "B00IBIUZGW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home music practice room with sound-absorbing treatment, safe wall storage for my guitar, quieter cymbal options, and hardware to mount an additional tom and add triggered electronic sounds to my acoustic kit."}
{"candidate_id": "dev-11000f81c8ec2ebf806041dd", "partition": "agent_dev", "positive_items": ["B018FCZKR2", "B0047VIXBG", "B0B31RCL2G", "B07NSWD8BR"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small acoustic guitar performance and need a compact setup to safely rest the guitar between songs, raise the PA speakers, keep sheet music readable, and blend microphones and instruments into a clean mix."}
{"candidate_id": "dev-110cde2516bb7314082b46cf", "partition": "agent_dev", "positive_items": ["B01HUCID0O", "B07N47GJ54", "B01LWZ0IVU", "B09198262S", "B078L11275", "B014ZYPT34"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing a Strat-style electric guitar and need compatible cosmetic and control upgrades, smoother string-tuning hardware, and reliable tuning verification, plus tools to identify and correct isolated high frets without removing all the strings."}
{"candidate_id": "dev-1113f0ef5bb348997dbed4de", "partition": "agent_dev", "positive_items": ["B003WY2DY2", "B07C2KD3VS", "B07BSG19DT"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m restoring my Gretsch guitar and want to refresh its worn hardware with matching chrome controls, a nickel pickup selector tip, and new strap attachment points while keeping the instrument’s original style."}
{"candidate_id": "dev-11168afe9f3d22c555a5dda6", "partition": "agent_dev", "positive_items": ["B098PKQ3GK", "B017NT392Q", "B0179C3V7K"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a small live-band recording session and need reliable mic support for vocals and instruments, plus a long, clearly organized multichannel connection from the stage to the mixer."}
{"candidate_id": "dev-111e49ca987c71173023dfa9", "partition": "agent_dev", "positive_items": ["B00O5EL4MA", "B073WN3G46", "B07DPJS6DZ", "B004KNTU72"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a DJ set for a small dance event and need a way to run Serato records, connect a microphone to the PA, and add colorful moving effects plus projected patterns for the room."}
{"candidate_id": "dev-11548018883043ed7194c8dd", "partition": "agent_dev", "positive_items": ["B07T738ZVT", "B0BCL8Z8Q3", "B09GFSWKM7", "B07Y6TSTS2"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a left-handed Strat-style electric guitar for gigging and need versatile multi-effects with hands-free control, compatible replacement tremolo saddles for maintenance, and a latching external switch for reliable tone changes."}
{"candidate_id": "dev-117eb36606595ec0fe3998d5", "partition": "agent_dev", "positive_items": ["B015HG82EW", "B09JJ586GD", "B06XCZ6S5W"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a reliable live guitar rig with precise tuning for two instruments, organized pedal mounting, built-in power, short connections between effects, and a padded setup I can carry to gigs."}
{"candidate_id": "dev-118b36e76c352550f08e48b3", "partition": "agent_dev", "positive_items": ["B06XH18BNL", "B005HZ7H2M", "B07FYL7LW1"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m upgrading my Jazz Bass with quiet vintage-style pickups and a new pickup-balance control, plus a comfortable extra-long padded strap for playing it standing up."}
{"candidate_id": "dev-119d744b2f3eb0ded6cb3e53", "partition": "agent_dev", "positive_items": ["B08KTLF669", "B0BKZ3GCGR", "B015XTFNP4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home studio to record acoustic-guitar-and-vocal demos, with comfortable picking, cleaner vocals without popping sounds, and accurate stereo playback for editing and mixing."}
{"candidate_id": "dev-11af0a8cf37d42ccb5a8ed82", "partition": "agent_dev", "positive_items": ["B09V91H5XM", "B01MRJUB7Z", "B07PPHHG34"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home guitar practice and performance station and need a safe wall hanger, a comfortable adjustable strap for playing, and an easy way to change keys without retuning constantly."}
{"candidate_id": "dev-11c0888b961d53c9dc45ed0b", "partition": "agent_dev", "positive_items": ["B01MRJUB7Z", "B09RJZSQML", "B07WW5PKCP", "B00IFOTSJW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my guitar ready for a polished practice and songwriting session: I want to clean and protect the finish, keep it accurately tuned, experiment with different keys using a capo, and have plenty of comfortable picks for strumming."}
{"candidate_id": "dev-11eed09fd30edf83d920f567", "partition": "agent_dev", "positive_items": ["B001LXMXU0", "B06XJ9CLN8", "B09S1WQZMD", "B07N5NMWXK", "B09KWWS7DH"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a small lap-steel guitar performance and need reliable instrument-to-amp connectivity, a tonebar and picks for playing, protection for my combo amp, and a proper cable to connect DMX stage lights to the controller."}
{"candidate_id": "dev-125121a0a608404d080e8d37", "partition": "agent_dev", "positive_items": ["B08Y1NRCWW", "B01MRCVSZO", "B08LRLRRKM"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a compact home music production and practice station with a sturdy flat surface for my keyboard or gear, an adjustable elevated platform for a laptop and controller, and a comfortable seat that keeps my guitar within reach."}
{"candidate_id": "dev-125a551b6a279a9bfeb17810", "partition": "agent_dev", "positive_items": ["B09VSJD5GP", "B06XFMY9ZB", "B01NBIW57O"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a comfortable home recording session for electric guitar and vocals, with cleaner muted playing, hands-free support during long takes, and secure isolation for a large-diaphragm condenser microphone."}
{"candidate_id": "dev-1320019b51c0b25fb251c0f5", "partition": "agent_dev", "positive_items": ["B098KXQJVY", "B0B8FSCM9L", "B00MEVC3SA", "B008BPI2OW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my 7-string Floyd Rose-equipped electric guitar ready for regular playing and want a durable locking-tremolo upgrade, long-lasting coated strings, faster string changes, and portable finger-strength and callus training."}
{"candidate_id": "dev-13220e3b8c189f3dd1dd15a2", "partition": "agent_dev", "positive_items": ["B001Q3KSBQ", "B092LF6RLS", "B01B36638W", "B001Q3KT9W"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a portable live-sound rig for small gigs and need a rugged rack setup that keeps the mixer accessible, organizes the remaining gear neatly, closes unused rack space, and reaches powered speakers across the venue with a long, low-noise balanced connection."}
{"candidate_id": "dev-137b3063be90cf3c2043c46b", "partition": "agent_dev", "positive_items": ["B00ZVSGVA4", "B07XW3XD9M", "B0C3LJM9GP"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m recording a live band rehearsal and need clear lead vocals, focused kick-drum capture, and enough multitrack inputs to mix everything later."}
{"candidate_id": "dev-139a06273236de66dd1fd0c5", "partition": "agent_dev", "positive_items": ["B00EM5UOE6", "B01BZTGSC8", "B01DPCONFM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I'm setting up a flexible electric guitar practice rig for learning songs and experimenting with tones, so I need effects and amp modeling with hands-on control, a compact practice amplifier, and a long cable for moving around the room."}
{"candidate_id": "dev-1405df3a610626ca7f79eba1", "partition": "agent_dev", "positive_items": ["B07WDBRYGF", "B01C5TBS90", "B08R5GM6YB"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m restringing both my acoustic and classical guitars and need suitable replacement sets for each, plus one practical tool to wind the tuning pegs, trim excess string, and help remove bridge pins during the changeover."}
{"candidate_id": "dev-141f15310698ab2a16f2ec1d", "partition": "agent_dev", "positive_items": ["B09M7P8SBH", "B09JMYM88H", "B08R5GM6YB", "B09396NY1C"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refreshing my electric guitar practice setup: I need a safe way to store two guitars, supplies and a tool for restringing them, plus a reliable cable to connect one to my sound equipment."}
{"candidate_id": "dev-14330226a900281ea82f60ae", "partition": "agent_dev", "positive_items": ["B00O5EL3EE", "B01BVPEUJY", "B07FZ5XBCJ", "B07D5W5X3Z"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for a small live bass performance and need replacement strings, reliable direct signal matching, balanced XLR connections, and a quick way to mount the vocal mic on its stand."}
{"candidate_id": "dev-147f9dec7666f04220f468b8", "partition": "agent_dev", "positive_items": ["B00K17YFC6", "B017U6GBBI", "B01BWE9BV6"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a portable bass setup for rehearsals and small gigs, and need a protective way to carry my instrument, a compact stand for breaks, and short cables for connecting pedals and effects."}
{"candidate_id": "dev-1483ae3bccfc61ca9877085d", "partition": "agent_dev", "positive_items": ["B07BRX9DB4", "B07B6BWKRV", "B093YGS1F1"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for small live performances and need a soprano saxophone setup with reliable microphone support and an easy way to transport the stand and related gear."}
{"candidate_id": "dev-149a53c560bb1f48e841b390", "partition": "agent_dev", "positive_items": ["B0B2NYZM58", "B09HTV1RV3", "B0C61YQFHH"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a compact electric-guitar effects setup for classic rock, with adjustable crunch, subtle shimmering chorus, and spacious digital reverb for shaping my tone."}
{"candidate_id": "dev-14c0e3b26dd56d7292f9de91", "partition": "agent_dev", "positive_items": ["B07TDNWYSB", "B07N5GVVRC", "B08R5GM6YB", "B095XCZXNQ"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing for a small traveling guitar gig where I’ll switch keys on a six-string electric, shape sounds and loop parts, restring on the road, and safely carry my mini-jumbo acoustic."}
{"candidate_id": "dev-14dbdffc5d595e598b82000c", "partition": "agent_dev", "positive_items": ["B0BXT5BYPN", "B09LTZ1QXP", "B015XLDQD8", "B0B8YWPB3K"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a reliable home guitar-maintenance station for restringing, making neck adjustments, tuning accurately, and safely holding the instrument while I work. I’d like compatible, gentle tools and support for a Taylor acoustic guitar."}
{"candidate_id": "dev-14e0cc602ad73254179dcd69", "partition": "agent_dev", "positive_items": ["B0BKRDX8P7", "B076YPR9PH", "B09BS25NJM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact setup for playing my mini acoustic guitar at small gigs, with secure hands-free support, protected backpack-style transport, and an expandable way to organize and swap my pedals."}
{"candidate_id": "dev-14eb1ef7a4f1c5ef99db41da", "partition": "agent_dev", "positive_items": ["B000PGQLXO", "B015GOFD1U", "B003WZS2KU"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring a nylon-string guitar for live performances and need replacement tuning hardware, a bridge-mounted passive pickup system, and secure strap attachment points for comfortable amplified playing."}
{"candidate_id": "dev-14ff6e7b309dd4b7f19465f8", "partition": "agent_dev", "positive_items": ["B00WRJM5NC", "B09V1TW1PN", "B0B6P55RBN"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home rehearsal station that can amplify my instrument with clean and overdrive tones, keep sheet music at a comfortable seated or standing height, and support my keyboard or mixer on a stable tabletop stand."}
{"candidate_id": "dev-1501c6b6f2aa34be255c2247", "partition": "agent_dev", "positive_items": ["B0BKZ1G3P3", "B0002GO8NM", "B09X6FFKWH", "B09RBFKS1X"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m refreshing my drum kit for recording: I need durable, brush-friendly heads for the toms, a precise way to balance head tension, an affordable 16-inch crash, and quick control of unwanted overtones."}
{"candidate_id": "dev-150671e48dfc60e980f79385", "partition": "agent_dev", "positive_items": ["B07F5PX9Y3", "B017NT392Q", "B0047VIXBG"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a portable solo acoustic guitar performance and need stable hands-free score viewing, reliable picks for playing, and an adjustable boom stand to position a vocal or instrument microphone."}
{"candidate_id": "dev-15215e4684b717f1ab757065", "partition": "agent_dev", "positive_items": ["B004MNEKWK", "B07DPNMCLG", "B01310K87K"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m upgrading my Floyd Rose-style electric guitar for better tuning stability, replacing the worn neck locking hardware and adding a way to switch between floating tremolo use and a fixed bridge when changing strings or alternate-tuning."}
{"candidate_id": "dev-15378c4ec1b98ff84a65cf52", "partition": "agent_dev", "positive_items": ["B0B44VTPS1", "B01DE4DPSC", "B0BQ4HSKC9"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a small home recording session for guitar and vocals, and need an adjustable stand for positioning the microphone, a short XLR cable for the mic, and a longer cable to connect my guitar to the recording setup."}
{"candidate_id": "dev-1562325faace23c89066d085", "partition": "agent_dev", "positive_items": ["B0077AMR7A", "B00NARHNCS", "B0796CFWKG"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a portable setup to fine-tune my guitar or bass action, then record clear instrument and vocal demos while practicing or working away from my studio."}
{"candidate_id": "dev-1570050c2e4214932e8d8de5", "partition": "agent_dev", "positive_items": ["B0089M057Y", "B07CRK35NG", "B0032UYJJI", "B0BXT41VYY", "B07FYVKDNQ", "B07NKMZJ5M", "B096K2LZKH"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up my electric guitar rig for a small live performance and need safer strap support, a replacement string, a short pedal connection, natural overdrive, a fresh preamp tube for my amplifier, and a way to position a microphone securely near the amp."}
{"candidate_id": "dev-15880eca76e587bbc4d54c78", "partition": "agent_dev", "positive_items": ["B00H7Y2ZXM", "B07SVPZFY2", "B07V4GG652"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a quiet home drum-practice setup for regular rock playing and need reliable sticks plus complete volume-damping coverage for my cymbals and drums, so I won’t disturb the neighbors."}
{"candidate_id": "dev-15d0d84c2093e818a319f604", "partition": "agent_dev", "positive_items": ["B06XF6NF5Y", "B07MH391ZF", "B01B15JPCQ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a comfortable home practice station for learning piano, so I need an 88-key digital instrument with Bluetooth, a sturdy height-adjustable stand, and a padded bench suitable for playing seated."}
{"candidate_id": "dev-15e0f7707472a25fa35e21b3", "partition": "agent_dev", "positive_items": ["B0010TKMN0", "B0009VCP9Y", "B004MTCHEM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable setup for practicing and performing Irish and Celtic rhythms, and need a tunable frame drum, a comfortable height-adjustable seat for playing, and a protective soft case with room for the playing accessories."}
{"candidate_id": "dev-15e9914c871b550081563dca", "partition": "agent_dev", "positive_items": ["B0B2T1LF1L", "B098KXQJVY", "B0B95V41NR"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my seven-string electric guitar for a live rehearsal and need fresh long-lasting strings, a short lead for nearby gear, and a longer cable with silent instrument changes."}
{"candidate_id": "dev-15fa9181d799dbb814eee8b9", "partition": "agent_dev", "positive_items": ["B09HCRTKL4", "B000RRG0QO", "B074LSHT37"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m assembling a compact Latin-influenced drum setup for small gigs, including bright cymbal coverage, mounted timbale and cowbell accents, and a warm, durable 10-inch rack-tom voice."}
{"candidate_id": "dev-1605f167e9e081d99a27e4ef", "partition": "agent_dev", "positive_items": ["B0BKR2ZM9X", "B0B8M5FJB6", "B096K2LZKH", "B07GBPF914", "B09CQFND6N"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m upgrading my electric guitar for rehearsals and gigs and need a reliable setup for stable tuning, quick string changes, secure strap attachment, and practicing accurately to a beat."}
{"candidate_id": "dev-1619101de628ccfb89c05973", "partition": "agent_dev", "positive_items": ["B00HV7U4CY", "B07P72FCR5", "B0CCK4YYNM"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a solo acoustic street-performance setup that combines an unusual buzzing mouth melody with hands-free, foot-operated shaker and jingle accents to keep time while I sing and play guitar."}
{"candidate_id": "dev-1620fedae27fdd46a42535db", "partition": "agent_dev", "positive_items": ["B0BJFDFVX5", "B07587LQGQ", "B0BGN6Y6ST"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together an electric-guitar practice setup and need a way to power my effects pedal, refresh its control knobs, and have comfortable picks for trying different playing styles."}
{"candidate_id": "dev-16d94ab0d1123df7afeb5cc1", "partition": "agent_dev", "positive_items": ["B085RTZN3G", "B0BV2F2YFC", "B0001Z99R4"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I want to set up a home podcast recording station with flexible USB or XLR audio capture, adjustable desk-mounted microphone positioning, and protection against distracting plosive sounds."}
{"candidate_id": "dev-1723a114cdab38343e60205b", "partition": "agent_dev", "positive_items": ["B0002E50WM", "B01C6YZN90", "B004OI77XW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact live-sound workstation and need a sturdy, movable rack with accessible cable routing and patching, plus an EQ for shaping and refining the system’s sound."}
{"candidate_id": "dev-174ccf1d6c728f505ca53a1b", "partition": "agent_dev", "positive_items": ["B0BKR2ZM9X", "B0BT2W3TTM", "B0BPJ4Q6FJ"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m upgrading my six-string electric guitar for studio doubling: I need to secure the neck properly, improve tuning stability with locking hardware, and set it up for bright Nashville tuning with a light high-strung feel."}
{"candidate_id": "dev-177c4af00e8f16ff2b4afe2f", "partition": "agent_dev", "positive_items": ["B0BPLFP5P6", "B0769VKBTZ", "B076ZSHQ47"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I'm preparing my guitar for small live performances and need reliable tuning, clear pedal connection, and a way to keep the strap secure and cable from being yanked loose."}
{"candidate_id": "dev-17df4ea345aa64e28268e905", "partition": "agent_dev", "positive_items": ["B0BK6PLQZW", "B073VRV6MS", "B075MCRFYZ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a compact guitar pedalboard for rehearsals and recording, with expressive stereo modulation, versatile high-gain overdrive, and short, flexible, well-shielded connections between the effects."}
{"candidate_id": "dev-1832522d09b3cee04e12c2b1", "partition": "agent_dev", "positive_items": ["B00ATP5KF6", "B0C4XQ496G", "B07PSWC1XY"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a small home vocal-recording corner and need to reduce room echo, control plosive sounds, and position microphones securely at adjustable standing height for recording or duet sessions."}
{"candidate_id": "dev-1839e24abd53419aabc790e7", "partition": "agent_dev", "positive_items": ["B074WXM13T", "B08DM9NFLH", "B0B7Z4Z88L"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m putting together a beginner electric-guitar setup for home practice and want a solid-body guitar, a comfortable strap with convenient pick storage, and a secure wall hanger for displaying it between sessions."}
{"candidate_id": "dev-185c4a5eb161e2a87ef5fd00", "partition": "agent_dev", "positive_items": ["B01E6T56EA", "B01M5CXH65", "B08NVVLB16", "B091MZPYBQ", "B00NPAMDQ6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a simple home vocal recording rig and need a handheld vocal mic, protection from breath and wind, reliable XLR connectivity, an interface for computer recording, and balanced monitor connections."}
{"candidate_id": "dev-1888c7a6b49f8ce9471c3e37", "partition": "agent_dev", "positive_items": ["B0098DFNY8", "B01DE4DPSC", "B0BPJ4Q6FJ"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m restoring a six-string electric guitar for home recording and need a bright high-strung setup, replacement control knobs, and a dependable cable to connect it to my amp."}
{"candidate_id": "dev-188bcf0c3f1389f8971b5fe1", "partition": "agent_dev", "positive_items": ["B000EEJB4I", "B00O9N4ZFU", "B00646MZHK"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m putting together a compact, travel-friendly setup for casual acoustic guitar practice and need a small instrument, protective soft carrying gear, and a simple clip-on tuner for staying in tune."}
{"candidate_id": "dev-18b7045615b70bc8ae7a3540", "partition": "agent_dev", "positive_items": ["B07GFH8NTB", "B0BSB847BR", "B073WND433"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing a small church music performance and need reliable vocal coverage for two singers, a microphone for the guitar setup, and fresh long-lasting acoustic guitar strings."}
{"candidate_id": "dev-18bebada80dc8d495afaa7b0", "partition": "agent_dev", "positive_items": ["B01HQFNFHG", "B01NAZMWZK", "B01MY4GGC6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact setup for small live gigs and need a space-saving effects platform, padded shoulder-carry protection for a micro keyboard or controller, and wired in-ear monitoring."}
{"candidate_id": "dev-18d5c779c4ae96a98fef5684", "partition": "agent_dev", "positive_items": ["B06Y2W66F5", "B0B14LN9H9", "B0B59DLBMD"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a compact electric-guitar practice rig and need reliable heavy picks, a replacement output jack for my instrument, and a small portable amp for home playing."}
{"candidate_id": "dev-18d645a044ae7ce91d035c8e", "partition": "agent_dev", "positive_items": ["B0BXSYL7X8", "B09JJ784V5", "B08Z5ZQB7F"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a portable live sound setup and need a compact rack for effects, short balanced connections between my gear, and a divided bag to transport two speaker stands safely."}
{"candidate_id": "dev-1911b306c16493d57f6c3394", "partition": "agent_dev", "positive_items": ["B01DPCONFM", "B076BW4ZRP", "B0006MXJJG", "B07CYRYQ8G"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small studio to record a band, including refreshing the 20-inch kick drum, positioning microphones securely, connecting electric guitar or bass, and tracking several sources through one multichannel interface."}
{"candidate_id": "dev-1944a87ece219c809cdc61c8", "partition": "agent_dev", "positive_items": ["B07MG8HHNG", "B08XCDBTGB", "B08NVVLB16"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m organizing a small church talent and presentation event and need reliable audio for a stationary singer, a roaming host, and a hands-free presenter, with both wired and wireless options."}
{"candidate_id": "dev-195562f4f2f9ef19b1c341ee", "partition": "agent_dev", "positive_items": ["B07MGDNP57", "B01E7FQ03O", "B0853VVC5L"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my nylon-string guitar for fingerstyle practice and want a complete setup for replacing the strings securely, improving playability, and adding comfortable thumb support for rehearsing afterward."}
{"candidate_id": "dev-19667455bcc960d6c0fa76d1", "partition": "agent_dev", "positive_items": ["B00N5THCL8", "B0BRQ3FT7P", "B07BS4BXHL", "B00IFOTSJW"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing for a two-guitar live performance and need comfortable, adjustable carrying support, quick clip-on tuning between songs, and a secure stand to keep both instruments ready and protected onstage."}
{"candidate_id": "dev-19b0520a4a550fa1e904f161", "partition": "agent_dev", "positive_items": ["B0BK5CXZBT", "B0928HW2P4", "B0BPJ4Q6FJ"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refreshing my six-string for Nashville tuning and need suitable strings plus safe supplies to clean the finish and condition the wooden fretboard."}
{"candidate_id": "dev-19ca70456b014463e0d3e2fd", "partition": "agent_dev", "positive_items": ["B0BTC9YJ2W", "B00JL5IKKC", "B071RL22PZ", "B00IFOTSJW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I'm getting my 12-string acoustic ready for a small live set and need a complete refresh plus setup for easy key changes: suitable extra-light strings, reliable tuning, a capo that fits all the strings, and comfortable picks."}
{"candidate_id": "dev-19e6d4cc377fefd25d21ac68", "partition": "agent_dev", "positive_items": ["B08K3BF1HX", "B09SVV3NC8", "B01M9I555L", "B07K9CQ7FB"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I want to refresh my acoustic guitar with removable abalone-style bridge and body decorations, using a stable neck cradle and fretboard protection while I clean, polish, and make minor touch-ups."}
{"candidate_id": "dev-1a0507a4ed39d13ed6e08904", "partition": "agent_dev", "positive_items": ["B07FYVKDNQ", "B01K1EJQ9U", "B071RL22PZ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m outfitting my 12-string guitar for casual gigs, with comfortable support, handy pick access, and quick key changes without retuning."}
{"candidate_id": "dev-1a1ba548d0426f213703561e", "partition": "agent_dev", "positive_items": ["B07D5W5X3Z", "B0BG95DG2H", "B0C3X55VNZ"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refreshing my four-string bass for an upcoming rehearsal and need fresh long-scale strings, a dependable instrument connection, and plenty of comfortable picks for practicing and performing."}
{"candidate_id": "dev-1a2e03028700312095c5a73d", "partition": "agent_dev", "positive_items": ["B07YM5ZHS9", "B07TRVP823", "B08SK53RH6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home vocal recording space and need materials to reduce room reflections and echo, plus reliable closed-back monitoring and a balanced connection for checking microphone recordings clearly."}
{"candidate_id": "dev-1a2e367cec6a7a9ae8f7cc39", "partition": "agent_dev", "positive_items": ["B07NKS5QZF", "B082PVH9JF", "B07DJ1TS8W"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m creating a calming sound meditation and yoga practice with layered sustained tones, hand-played chime accents, and a resonant crystal bowl for guided mindfulness sessions at home."}
{"candidate_id": "dev-1a354794f1330f9a45c45625", "partition": "agent_dev", "positive_items": ["B07281RLMX", "B0B962GTW6", "B09HL6MZ45", "B0BK6S7QF4", "B003THDD2S"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing my drum kit for recording and live gigs, needing fresh, controlled heads for the snare and toms, responsive snare hardware, and a mountable tambourine for extra rhythmic accents."}
{"candidate_id": "dev-1a5100671a117dd5c016cad4", "partition": "agent_dev", "positive_items": ["B07VMXTRQ7", "B078JGMF6M", "B06Y2W66F5"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up my electric guitar at home and need to measure neck relief and string action precisely, make small adjustments, clean the instrument afterward, and test the finished setup through a compact practice amp."}
{"candidate_id": "dev-1a9517ac7dae9c9e870fb00b", "partition": "agent_dev", "positive_items": ["B00H4PEMM6", "B08R5GM6YB", "B079HP2PFK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a guitar practice space where I can safely display several guitars, handle routine restringing and string changes, and quickly transpose songs during practice without needing electronic tuning features."}
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{"candidate_id": "dev-1ad948f120f16ba5d814017f", "partition": "agent_dev", "positive_items": ["B00E9SXHS6", "B00DKAQGTG", "B0B96H6DMR"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my acoustic guitar ready for regular playing and want comfortable hands-free support, reliable picking accessories, and a simple way to protect its wood from drying out."}
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{"candidate_id": "dev-1b4f83f17a19d7347c351af3", "partition": "agent_dev", "positive_items": ["B01K1EJQ9U", "B00H4PEMM6", "B0BTC9YJ2W"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my 12-string acoustic for regular playing and want a warm, balanced extra-light string setup, quick one-handed key changes, and a convenient way to keep picks attached nearby."}
{"candidate_id": "dev-1b69f6e69e30a00c61b238bf", "partition": "agent_dev", "positive_items": ["B0B8F6LD9F", "B00OO19ZGG", "B002NM2BBO", "B001AMXGDU"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m rewiring my Strat-style guitar and need vintage-style hookup wire, three-way pickup switching, and stacked dual controls operated by a concentric knob."}
{"candidate_id": "dev-1b8c21d67a72d48f9c116303", "partition": "agent_dev", "positive_items": ["B0BSGM6CQ9", "B08R5GM6YB", "B00CGFRJ2Y", "B00H4PEMM6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my guitar ready for a heavier-gauge setup and upcoming practice sessions. I need replacement electric strings, an easy restringing tool, a capo for changing keys, and comfortable picks for playing afterward."}
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{"candidate_id": "dev-1c2c2efaae68526d77bcc9c9", "partition": "agent_dev", "positive_items": ["B0049U4EEA", "B07MZVLGK2", "B00NPAMDQ6", "B097FMTZCP"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact live-music rig for a small venue and need to improve the PA’s high-frequency output, connect microphones over long distances, safely mount the main speaker above the subwoofer, and keep my guitar secure between sets."}
{"candidate_id": "dev-1c2d1bd9012d85191077e2ec", "partition": "agent_dev", "positive_items": ["B01C5TBX68", "B0928FMP3T", "B076322LP4"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m refreshing my electric guitar setup for recording, with fresh light strings, a lush modulation effect, and a long low-noise cable to connect everything cleanly."}
{"candidate_id": "dev-1c799fc4ae1978499b3dd0eb", "partition": "agent_dev", "positive_items": ["B09V91H5XM", "B08R5GM6YB", "B01K1EJQ9U", "B08JMQR2JK"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a practical guitar rehearsal station and need comfortable hands-free playing support, a reliable tool for changing and trimming strings, easy access to picks, and secure places to park several guitars between sessions."}
{"candidate_id": "dev-1c9bcf73f32e39281481315b", "partition": "agent_dev", "positive_items": ["B01A94V6I6", "B01B15JPCQ", "B0BSCF2FD7"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a comfortable, portable home keyboard practice station and need an adjustable stand, a supportive height-adjustable seat, reliable power, and hands-free sustain control for my electronic keyboard."}
{"candidate_id": "dev-1cb1a9efd2d6c269e9e4e07f", "partition": "agent_dev", "positive_items": ["B07FYJ7ZLJ", "B09396NY1C", "B07BLM53Z1"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I'm putting together a reliable guitar setup for rehearsals and small live gigs, with hands-free support while playing and dependable, shielded connections through my effects and amp that let me move around comfortably."}
{"candidate_id": "dev-1cccd51c276fe654f9fb6657", "partition": "agent_dev", "positive_items": ["B003WE98FO", "B000EENAMW", "B00CS6XUE2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact drum recording and rehearsal setup, with comfortable seating, reliable monitoring for detailed playback, and protective transport for a floor tom when taking the kit to gigs."}
{"candidate_id": "dev-1cdb79cb81e8b6d0b7f6119f", "partition": "agent_dev", "positive_items": ["B084RPXXBQ", "B0BKZ6M28F", "B00EC9QWF2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a versatile drum setup for rehearsals and recording, with a responsive steel snare, a bass-drum beater offering both punch and softer rubber attack, and reinforcement for double-pedal playing."}
{"candidate_id": "dev-1ce5609db33682d94fa1fdfd", "partition": "agent_dev", "positive_items": ["B01DPCONFM", "B00CIO6BEA", "B01K1EJQ9U"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up an electric guitar practice station and need a long instrument cable, durable heavy-gauge picks, and a convenient way to keep spare picks close at hand."}
{"candidate_id": "dev-1d28cf6f4b05aadf6c85ab35", "partition": "agent_dev", "positive_items": ["B093V3X8ST", "B0BXT5BYPN", "B0BPLFP5P6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m doing a hands-on setup for my guitar and need secure playing support, accurate tuning, and a tool for neck adjustments."}
{"candidate_id": "dev-1d361d7a06d7941a565843d0", "partition": "agent_dev", "positive_items": ["B0BHSG5C3G", "B071G734F5", "B00INCGKSI", "B01K1EJQ9U"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my guitar for regular practice and small performances, and need an easy way to keep the strings clean, stay in tune, change keys smoothly, and keep picks accessible."}
{"candidate_id": "dev-1d5b8a1a1ec3fd909382ed06", "partition": "agent_dev", "positive_items": ["B07KBBN7MX", "B000EEHIIE", "B07X2LN3FV", "B00H4PEMM6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m a left-handed guitarist preparing a slide-and-fingerstyle arrangement for a 6- or 12-string guitar, and need easy key changes, thumb and finger control, and a warm glass-slide tone."}
{"candidate_id": "dev-1d8cbc1e90b0fd42e2aee705", "partition": "agent_dev", "positive_items": ["B08DZZ89Z9", "B01H0PACWI", "B09RN7GR8F", "B0BSCGXCVP", "B06X9KG3HW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I want to record a small podcast and music session at home, routing a condenser microphone and stereo laptop playback through a multichannel mixer into my computer with the necessary audio connections."}
{"candidate_id": "dev-1d93cdc024ac6a675ad2a8c8", "partition": "agent_dev", "positive_items": ["B00RVE9X06", "B01BZTH3ZY", "B0BPJ4Q6FJ", "B00ATP5KF6", "B015HG7HMA"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a small home guitar recording session and need to restring and accurately tune my six-string, connect it to a multitrack recorder, and reduce room reflections for cleaner takes."}
{"candidate_id": "dev-1da671ddb6b38539645cc3e6", "partition": "agent_dev", "positive_items": ["B08BSFDY99", "B00VSYN25M", "B095XZJ99J"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my electric guitar for rehearsal and need everything to restring it, connect it to an amplifier, and experiment with different pick feels."}
{"candidate_id": "dev-1dc839e7a3defbfe5e6bfd48", "partition": "agent_dev", "positive_items": ["B0776SV8HS", "B07T96ZKRS", "B08FCWRWJ2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my USA-made Les Paul-style electric guitar with a transparent rear control cover and red speed controls, then miking its amp for a punchy home recording, so I need compatible guitar hardware plus a stand and XLR connection."}
{"candidate_id": "dev-1df55446da53cee27a52d729", "partition": "agent_dev", "positive_items": ["B017NT392Q", "B07PSWC1XY", "B09G9DVTD3"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a simple podcast recording station and need a USB microphone with stable adjustable positioning and a pop filter to keep my spoken vocals clear and free of plosives."}
{"candidate_id": "dev-1e1de88c58700a5c84e3f1dc", "partition": "agent_dev", "positive_items": ["B0BMZ3T7BX", "B07MMJX9T7", "B005FIFM14", "B0BPJ4Q6FJ"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a small guitar recording corner and want to restring a six-string for bright Nashville-style doubled parts, organize several instruments safely on the wall, personalize one with decorative inlays, and make custom-shaped picks from spare plastic cards."}
{"candidate_id": "dev-1e215a6524540b3bfeb5cbfb", "partition": "agent_dev", "positive_items": ["B06X9YBVXS", "B001ECQQ8I", "B0014598WQ"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m assembling a portable 8U audio rig for gigs and need a protective rack case, secure mounting hardware, and power conditioning with enough outlets and front lighting for setup in dark venues."}
{"candidate_id": "dev-1e2fcf8ce744b3abbd34f2cf", "partition": "agent_dev", "positive_items": ["B0002KX050", "B007MCRQ6K", "B0BKZ67C9F", "B0BKZ61YJJ"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing for a school percussion performance and need a portable setup for quiet snare practice, responsive lightweight sticks, suitable timpani playing, and carrying everything conveniently to rehearsals."}
{"candidate_id": "dev-1e5b95179adb1a6cb4461677", "partition": "agent_dev", "positive_items": ["B08V1BB4KP", "B01JG0A4W8", "B091FMMGD3"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring a three-string electric guitar and need a replacement bridge with adjustable saddles and mounting hardware, plus luthier tools for beveling fret ends and accurately pressing frets into different fingerboard radii."}
{"candidate_id": "dev-1e6ae82db320d13ea62c075f", "partition": "agent_dev", "positive_items": ["B00IPH8MD2", "B07DWY7R2X", "B08R5GM6YB", "B07C5RMKBF", "B09V91H5XM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a versatile guitar practice and restringing kit, with an adjustable comfortable strap, assorted pick options, fresh electric and nylon acoustic strings, and one tool for winding, cutting, stretching, and removing bridge pins."}
{"candidate_id": "dev-1e735ee506036d7137ec0885", "partition": "agent_dev", "positive_items": ["B0BKZ6JR1L", "B01LF4CK16", "B084RPXXBQ", "B082WVMFYB", "B01D4P2OI8", "B0016H8S1O", "B00YJ5C46K"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing my compact drum kit for rehearsals and live shows, needing fresh heads and snare response, a new bass pedal beater, a tuning tool, reliable sticks with onstage storage, and a stand-mounted tray for essentials and a drink."}
{"candidate_id": "dev-1ea76b6ad04f7a18d2577dfe", "partition": "agent_dev", "positive_items": ["B07N47ZJ4W", "B000EELCB8", "B07MHL48V6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a bass effects setup for recording and live fills, with thick tube-like drive, vintage echoes, and a bass-friendly wah that sweeps the mids and highs while keeping the low end solid."}
{"candidate_id": "dev-1ead7ec986b7ba4d7b02f5ea", "partition": "agent_dev", "positive_items": ["B07FYVKDNQ", "B08DM9NFLH", "B00CPLODUU"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home guitar practice corner and need a safe way to display my instrument, adjust keys quickly while playing, and wear it comfortably during standing sessions."}
{"candidate_id": "dev-1eb4ed88b0063567a78aeca5", "partition": "agent_dev", "positive_items": ["B01H8E51CC", "B00J5YWD5W", "B0002E5518", "B06Y6BCX7B", "B0BR2KJYGD", "B004WKWI40"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a small live conga performance rig and need secure support for two congas, flexible microphone positioning on the stand, a reliable wireless mic mount, balanced audio connection, and power for a compatible rack receiver."}
{"candidate_id": "dev-1ef645668a9d2bf569d3a67b", "partition": "agent_dev", "positive_items": ["B000AOACR2", "B07PSWC1XY", "B017NT392Q"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home session to record a polished vocal-and-electric-guitar demo, so I need stable adjustable microphone positioning, protection from vocal plosives, and a fresh, long-lasting set of guitar strings."}
{"candidate_id": "dev-1efbc1e03e375f1ed7efc55d", "partition": "agent_dev", "positive_items": ["B00RVE9X06", "B0009MILCI", "B074JNWHZ4", "B00P1GZ39G"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a comfortable, stage-ready setup for playing a six-string banjo at small gigs, with a pickup connection to amplification, reliable microphone-to-PA cabling, and hands-free support."}
{"candidate_id": "dev-1f03fd748c86a83538b4dcd2", "partition": "agent_dev", "positive_items": ["B0BSB9249S", "B000BBGCBO", "B091MZPYBQ"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing for an acoustic singer-songwriter performance and need a handheld vocal setup with protection from breath and wind interference, plus comfortable, grippy picks for accompanying myself on guitar."}
{"candidate_id": "dev-1f28379f961a0886bde2f816", "partition": "agent_dev", "positive_items": ["B07FS71279", "B075SVNSW2", "B00XMZAFQ4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I want to refresh my Strat-style guitar with coordinated chrome replacement hardware, covering the single-coil pickups and replacing the worn selector tip and control knobs for a cleaner, more consistent setup."}
{"candidate_id": "dev-1f31c6adf13f67a263fc54bc", "partition": "agent_dev", "positive_items": ["B00AHAFMCO", "B00ICR2Y4I", "B00ICR2TYS"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m organizing a compact home band room and need padded, portable protection for a drum tom plus secure flat-wall displays that keep my trombone and trumpet accessible."}
{"candidate_id": "dev-1f5d65838b3c88fe5ba77690", "partition": "agent_dev", "positive_items": ["B0002F4MKW", "B007MD81Q8", "B0C3LDN2ZX", "B07P13LBR6"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m assembling a portable percussion setup for rehearsals and small performances, with a way to lift my conga for more bass, securely mount an Oriental-style cymbal, and carry the cymbal protected between sessions."}
{"candidate_id": "dev-1f6cd3ae384b0e080e0a981b", "partition": "agent_dev", "positive_items": ["B0BHSG5C3G", "B08JMQR2JK", "B07N5J3GTB", "B091MZPYBQ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small acoustic guitar-and-vocal rehearsal area where I can tune several guitars, keep them safely parked between sessions, and practice singing with a handheld microphone protected from breath and wind noise."}
{"candidate_id": "dev-1f79119624072b7730db291f", "partition": "agent_dev", "positive_items": ["B01N4S8BBJ", "B0002F4TKU", "B09PGW1W7R", "B000BBECD4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a versatile percussion setup for band and orchestral rehearsals, with tools to quickly tune and change drumheads, dependable sticks for general practice, lighter pit-style playing, and mallets for keyboard percussion."}
{"candidate_id": "dev-1f879ff63ea8b71a71f82f28", "partition": "agent_dev", "positive_items": ["B09T7NX5K7", "B0BKZ1KXLM", "B0BYXVCSGG", "B07N2WWT61"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact drum-and-vocal rehearsal rig and need durable sticks, a focused 13-inch drumhead, hands-free stick access, and a dynamic microphone with a long connection cable."}
{"candidate_id": "dev-1f9a3565f9b37da7e30c819c", "partition": "agent_dev", "positive_items": ["B07DWM2XSS", "B07DWRNL54", "B098KXQJVY"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my guitar and bass gear for a long rehearsal and recording session, replacing strings on my 7-string, regular electric guitar, and long-scale 5-string bass with durable coated sets for consistent tone."}
{"candidate_id": "dev-1fac344835a1f8a27e36c95d", "partition": "agent_dev", "positive_items": ["B09198262S", "B007SOPCTK", "B079H5K22T"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a guitar practice and rehearsal setup where I can switch quickly to Drop D, check tuning accurately between songs, and keep my water or coffee accessible without interrupting playing."}
{"candidate_id": "dev-1fb18c86fa68ad160ca056c4", "partition": "agent_dev", "positive_items": ["B09V91H5XM", "B095XZJ99J", "B0BPLFP5P6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my six-string electric guitar ready for regular rehearsals and gigs, with durable replacement strings, reliable clip-on tuning, and an adjustable, comfortable shoulder strap for playing standing up."}
{"candidate_id": "dev-1fc04ff9e1a16107e449d94e", "partition": "agent_dev", "positive_items": ["B096SCHS5Y", "B0BK6R9G7P", "B085RTZN3G"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home podcast recording station and need a desk-mounted adjustable boom arm, shock isolation for my USB microphone, and thread adapters to connect accessories with mismatched stand fittings."}
{"candidate_id": "dev-1ffab31c42ddbdabad2533c0", "partition": "agent_dev", "positive_items": ["B08BNMXRT6", "B01M5JN7YC", "B0B7C7PYVC"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refurbishing my four-string bass and want a drop-in bridge upgrade, smooth 45–100 flatwound strings, and the measuring tools needed to accurately set string action and radius after the installation."}
{"candidate_id": "dev-200ad533a4cb72f81e7f7713", "partition": "agent_dev", "positive_items": ["B0B8LK7MTH", "B08BJGBHN7", "B08BW2TBD7"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a simple guitar practice kit and need a comfortable way to play standing, a safe folding place to keep the instrument between sessions, and assorted pick styles and gauges to discover what suits my technique."}
{"candidate_id": "dev-200ec2231b59160cd52e8923", "partition": "agent_dev", "positive_items": ["B0158GWWJ2", "B0BHSG5C3G", "B000BBQPBG"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my steel-string guitar ready for regular practice and small performances, and want a simple setup that helps me tune accurately, shift keys quickly, and play comfortably with reliable picking accessories."}
{"candidate_id": "dev-2056e12eca09467c3d20025e", "partition": "agent_dev", "positive_items": ["B000SAGSRQ", "B07N5KJV3B", "B00P0HHNJO"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable blues harmonica setup for practicing and small jams: I need a D major harp, a hand-friendly amplified mic with volume control, and a compact amp."}
{"candidate_id": "dev-2062e536a8d0beef1627fd27", "partition": "agent_dev", "positive_items": ["B00DKAQGTG", "B0BPJ4Q6FJ", "B09BF8XDF4", "B0928HW2P4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my acoustic and electric guitars for a recording session and want fresh strings for both, while also conditioning the fretboard and keeping the acoustic properly humidified during storage."}
{"candidate_id": "dev-2070cec9fcc342a38e8ed476", "partition": "agent_dev", "positive_items": ["B078PM9JSR", "B004PDJV08", "B00HX9F1OQ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing a hybrid drum kit and need to replace worn tom and snare hardware, securely position an electronic module, and verify my audio and instrument cables before rehearsals."}
{"candidate_id": "dev-207e5256cbb21f02a91708bc", "partition": "agent_dev", "positive_items": ["B092LF6RLS", "B09VT45772", "B015JTEBN8", "B01DE4DPSC", "B016QUXTZU"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home studio to record vocals and guitar, so I need a sensitive recording microphone with plosive protection, an adjustable stand, reliable connections for both mic and instrument, and enough cable length to position everything comfortably."}
{"candidate_id": "dev-20a6ea43c6019ed452ed598b", "partition": "agent_dev", "positive_items": ["B086QNCLQ8", "B003MVVI2I", "B000CZ0R3S"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small experimental home recording session and need a way to create punchy synthesized bass tones, add spacious atmospheric ambience, and clearly capture vocals or amplified instruments with reduced background noise."}
{"candidate_id": "dev-20b6cd87e1c16754b31781a5", "partition": "agent_dev", "positive_items": ["B07BSZNKTM", "B08JMQR2JK", "B00IFOTSJW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a small guitar performance and need a way to keep three instruments safely accessible, tune quickly between players, and change keys smoothly during the set."}
{"candidate_id": "dev-20bd1788b50a8c3067c26f2a", "partition": "agent_dev", "positive_items": ["B09G9DVTD3", "B015XTFNP4", "B002GHIPYI"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m recording my first home podcast episode and need an easy USB setup for clear spoken audio, reduced plosives, and comfortable, isolated monitoring while I record and review each take."}
{"candidate_id": "dev-20e38f75bd3dc9c31bc2daa7", "partition": "agent_dev", "positive_items": ["B09M4JHJVT", "B005SUTS8W", "B0C159Y982"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a hands-on rhythm workshop and need a setup covering a handheld pulse, crisp interlocking wood accents, and rich shaken textures for group practice and performances."}
{"candidate_id": "dev-20f2e83a42387a43d15b806e", "partition": "agent_dev", "positive_items": ["B09LSCRNCH", "B0BTC9YJ2W", "B08R5GM6YB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my 12-string acoustic guitar for upcoming practice and small performances, and need a complete setup for installing the new strings, trimming and securing them properly, then testing the sound with comfortable picks."}
{"candidate_id": "dev-20fe410fe8664c22de7cc748", "partition": "agent_dev", "positive_items": ["B00HTWQWNG", "B0B8M5FJB6", "B01DE4D4LU", "B09RJZSQML"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable electric guitar setup for practicing blues and slide playing, with comfortable support, durable picks for strumming, a long slide for expressive lead parts, and a short cable to connect closely spaced effects pedals."}
{"candidate_id": "dev-20fe845466f0beeddb6780d8", "partition": "agent_dev", "positive_items": ["B0BKZ3GCGR", "B074WXM13T", "B07GKQJYFB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a beginner-friendly guitar setup for a young player, including a compact acoustic instrument, a comfortable way to wear it while practicing, and plenty of warm-sounding picks for strumming lessons."}
{"candidate_id": "dev-2140a5c451116f6f1b4b424c", "partition": "agent_dev", "positive_items": ["B0002CYU9I", "B07CHP22XJ", "B09Z5HH8FR"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small dance-party lighting effect and need a rotating hanging disco ball with a compatible motor, plus a focused colored spotlight to make the reflections visible across the room."}
{"candidate_id": "dev-216d3af64a7be7f79b733cbc", "partition": "agent_dev", "positive_items": ["B075BKX24P", "B08GJ29BX2", "B0BK6T5BSM", "B00T3G1164"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a reliable alto sax setup for regular playing and performances, including the instrument, suitable reeds, a secure stand for breaks, and a bore-and-bell cleaning solution to manage moisture after each session."}
{"candidate_id": "dev-218803971d7aa0d6ac2575c0", "partition": "agent_dev", "positive_items": ["B07BHJH2Y8", "B00HV7U4CY", "B0CCK4YYNM", "B08R5GM6YB", "B007MY5BDI", "B00N4ZHQ14"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a solo acoustic set with my guitar and baritone ukulele and need fresh strings for both, an easy way to change them, a capo that works across my instruments, and hands-free foot percussion for shaker and jingle accompaniment."}
{"candidate_id": "dev-21b48d8727928d878742c766", "partition": "agent_dev", "positive_items": ["B07B8WL33G", "B08JMQR2JK", "B0006ZXFWO"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting three guitars ready for a gig and need a secure way to hold them between sets, refresh their finishes and fretboards, and keep the straps firmly attached while playing."}
{"candidate_id": "dev-220e4a783ed510ed98e2ff6e", "partition": "agent_dev", "positive_items": ["B0BSCFTV2G", "B0BHSG5C3G", "B08JMQR2JK"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m organizing a small guitar rehearsal and need a way to safely hold several instruments, quickly change keys during songs, and keep everyone’s guitars accurately tuned between pieces."}
{"candidate_id": "dev-22606cf9589124e01cd714eb", "partition": "agent_dev", "positive_items": ["B07DGW4H5Q", "B01DK40R3M", "B00KIZROW4", "B0BK5CXZBT", "B093YKLWVN"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my electric guitar and pedalboard: I need to restring it, condition the fretboard, polish the finish, and connect several closely spaced effects with reliable short links and couplers."}
{"candidate_id": "dev-226885b5720cab335708e5fe", "partition": "agent_dev", "positive_items": ["B087Q1GXQ9", "B0002BACAA", "B0BLM25NFX", "B0BHG58G2F", "B09L5QDZR6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m recording a live funk-jazz band demo and need a practical setup for close-miking kick and other drums, clipping a mic to the horn, capturing detailed vocals or solo instruments, and restringing the five-string bass for a bright, balanced tone."}
{"candidate_id": "dev-227b6224b0ca5d7e306365f0", "partition": "agent_dev", "positive_items": ["B0C549XRRB", "B0C4QD3CX3", "B0C159Y982", "B01AW50L6U"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m organizing a portable African drumming circle and need complementary hand drums for different players, a comfortable way to carry one while standing, and crisp wood percussion for keeping the group’s rhythm."}
{"candidate_id": "dev-2280b5462c3b747d127ad240", "partition": "agent_dev", "positive_items": ["B002SQTE56", "B0BKZ2S4PC", "B0B44VTPS1", "B0B2TND26L", "B0C2TCV19K", "B09636ZCLR", "B00IGGSDYK"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a home drum recording session and need to refresh my 14-inch snare, control drum overtones, position several microphones around the kit, and treat the room to reduce echo and unwanted reflections."}
{"candidate_id": "dev-22a93842cabcbfb7464e5f31", "partition": "agent_dev", "positive_items": ["B001PPXFAG", "B003BQ2DKK", "B0BYXQHW7Y"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a desktop voice-recording station and need a stable swivel arm with vibration isolation, plus an XLR-to-USB interface providing mic gain, headphone monitoring, and phantom power for my studio microphone."}
{"candidate_id": "dev-22b25eaf79df9b93fe42da6a", "partition": "agent_dev", "positive_items": ["B07C91JT14", "B014CD837M", "B00O5EKZ9I"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a small live vocal performance for three singers and need secure mic mounting, long balanced connections to the PA, and dynamic microphones with on/off switches."}
{"candidate_id": "dev-22bb78486b6c10ce9d456a62", "partition": "agent_dev", "positive_items": ["B004FOITMS", "B0BKR2ZM9X", "B00BFN58WQ", "B06Y2W66F5", "B000AYF8YE"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring a Tele-style electric guitar for a compact home practice setup: I need vintage-style tones, faster stable tuning, a safe wall display, and a small battery-friendly amp with modulation, delay, and reverb for experimenting."}
{"candidate_id": "dev-22c21a4835888c6e25960240", "partition": "agent_dev", "positive_items": ["B09V91H5XM", "B0BT2Z1DF1", "B0BZJ3ZS8B"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refurbishing my six-string electric guitar for reliable stage use, with a replacement nut, locking tuning hardware for easier tuning, and a durable adjustable strap for playing comfort."}
{"candidate_id": "dev-22c46008b386642f0aaa58fd", "partition": "agent_dev", "positive_items": ["B0079JSATS", "B0B8M5FJ9W", "B01MRJUB7Z"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I'm building and performing a homemade six-string cigar-box electric guitar, so I need an easy-to-install pickup with simple volume and tone controls, a secure strap, and a capo for clean key changes while playing."}
{"candidate_id": "dev-22c49c20d1996c27455b2fab", "partition": "agent_dev", "positive_items": ["B00KLLKE04", "B0B92LPGD2", "B0BKR2ZM9X"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my guitar setup and need reliable replacement tuning hardware, better string alignment for tuning stability, and a padded folding rack to keep several guitars organized and accessible."}
{"candidate_id": "dev-22e43e10c7e933fe3885a208", "partition": "agent_dev", "positive_items": ["B077PGW7WT", "B00YJ5C46K", "B00NPAMDQ6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live band performance and need reliable connections for microphones and DMX stage lights, plus a convenient way to keep drinks, picks, and small essentials within reach."}
{"candidate_id": "dev-22e79f9456011936e940c0c8", "partition": "agent_dev", "positive_items": ["B00MH1NWLO", "B000UJHHLQ", "B09S2VB3KW", "B07GFH8NTB"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refreshing my acoustic guitar setup for practicing blues and fingerstyle, and need long-lasting coated strings, a warm-sounding glass slide, plus a versatile selection of comfortable standard, finger, and thumb picks for different techniques."}
{"candidate_id": "dev-22ee8643744a0b16b1f10a09", "partition": "agent_dev", "positive_items": ["B081H9XY1F", "B07MV1JM99", "B01MQ6GM7S"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my bass clarinet ready for regular rehearsals and need fresh, easy-playing reeds plus a gentle cleaning brush and absorbent neck-and-mouthpiece swab to keep the instrument dry and well maintained."}
{"candidate_id": "dev-23021bcc8b1cba3ca68565f9", "partition": "agent_dev", "positive_items": ["B0B95V41NR", "B0BR2G8WYG", "B079TLFL33"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my Stratocaster ready for reliable gigging and need parts for secure strap attachment, proper tremolo-arm tension, and a short, low-noise cable for connecting my guitar setup."}
{"candidate_id": "dev-230ce67067f03650d970cb5c", "partition": "agent_dev", "positive_items": ["B000MYIIRG", "B09VT45772", "B001PPXFAG"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact desktop podcast recording setup and need a quality condenser microphone, stable low-profile positioning, USB connection to my computer with phantom power, and zero-latency headphone monitoring."}
{"candidate_id": "dev-231914ea5159b62f03d72c58", "partition": "agent_dev", "positive_items": ["B09R6KV6QX", "B0BHSG5C3G", "B01K1EJQ9U"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a compact guitar practice station and need an easy way to tune accurately, keep durable picks close at hand, and avoid losing them during playing."}
{"candidate_id": "dev-23204ea70a61cbbedb474e50", "partition": "agent_dev", "positive_items": ["B0047VIXBG", "B003VYBNKS", "B09BF8XDF4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my guitar ready for a small amplified performance and need longer-lasting replacement strings, a reliable way to connect it to the amp, and a stable adjustable stand for my music."}
{"candidate_id": "dev-23386046fa3c2235397e1fce", "partition": "agent_dev", "positive_items": ["B07D444NSP", "B07GFH8NTB", "B08JMQR2JK", "B00CIO6BEA", "B01K1EJQ9U", "B0B8M1RZWV"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing and organizing my acoustic guitars for a small live set, with fresh light strings and bridge hardware for maintenance, reliable playing essentials, an adjustable strap, nearby pick storage, and padded stands for several instruments."}
{"candidate_id": "dev-234f7af3c34c27020052df6c", "partition": "agent_dev", "positive_items": ["B015G496OU", "B019RK916W", "B00L2QDKIU", "B01H8E5A82"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m building a compact electric-guitar pedalboard for recording expressive leads and atmospheric rhythm parts, with control over dynamics, wah and volume, rhythmic tremolo, and spacious multi-style echoes."}
{"candidate_id": "dev-2370c5082c353862ed5a3f47", "partition": "agent_dev", "positive_items": ["B07D4PXSFG", "B088DD5M4V", "B0BT8FDL8B"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m starting electric guitar and want a portable practice setup with flexible tones and everything needed to plug in and play at home or lessons."}
{"candidate_id": "dev-23929f206ec280c1c97bcc72", "partition": "agent_dev", "positive_items": ["B0BPJ4Q6FJ", "B00V4VQCQU", "B09RTZ26KV"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up my six-string electric guitar for a recording project with a bright high-strung part, and I need fresh strings, precise non-slip picks, and an easy way to keep spare picks on the headstock."}
{"candidate_id": "dev-23a5c6cc1489d5f93aab7816", "partition": "agent_dev", "positive_items": ["B0025PM6DM", "B0B9TBDBRJ", "B0B92LPGD2"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m restoring an American-style Strat or Tele and need hardware for reliable tuning, including replacement tuning machines and string guides, plus the correct screws to secure the pickups and switch."}
{"candidate_id": "dev-23aeacdfc8b2e2b7a105004f", "partition": "agent_dev", "positive_items": ["B081TV17VQ", "B0B8F6LD9F", "B01L8C14VW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring my Tele-style thinline P90 guitar and want to give it a vintage-inspired look while replacing the pickguard, upgrading the control knobs, and rewiring the electronics cleanly."}
{"candidate_id": "dev-23c8936b2e15128983df0e6d", "partition": "agent_dev", "positive_items": ["B0BXBFG6BX", "B0BT855NFQ", "B0BCXJZ83G"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable bass setup for rehearsals and small gigs, with reliable amplification, hands-free support while playing, and a durable lead to connect my instrument."}
{"candidate_id": "dev-23ddf2ae5a1fa04acdf8f796", "partition": "agent_dev", "positive_items": ["B000LPSODY", "B07KRZ1HH8", "B073QGWQBW", "B07MQBPZG8"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring a Fender-style electric guitar and need compatible replacement hardware for the tremolo arm, pickguard mounting, strap attachment, and neck joint, with black finishes where appropriate."}
{"candidate_id": "dev-23fe035969167bb598ce1264", "partition": "agent_dev", "positive_items": ["B0002Z2CZY", "B00IFOTSJW", "B08R5GM6YB", "B0BPKH4HB2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my classical guitar for regular lessons and need light-tension nylon strings, accurate clip-on tuning, comfortable picks, and one practical tool for efficiently changing and trimming the strings."}
{"candidate_id": "dev-24019de17b1d304a803eb9db", "partition": "agent_dev", "positive_items": ["B004MCR6UO", "B0B3VKN2VS", "B00J1T5BLY"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m upgrading my Precision Bass and need a replacement nut, a vintage-style split-coil pickup, and reliable control-wiring components to complete the instrument’s setup and electronics."}
{"candidate_id": "dev-2437127454931990fceddd55", "partition": "agent_dev", "positive_items": ["B00ATP5KF6", "B0C6H9T5T6", "B017NT392Q"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home podcast and video recording corner and need a USB microphone, an adjustable boom stand for consistent positioning, and acoustic treatment to reduce echoes and improve vocal clarity."}
{"candidate_id": "dev-244dba71fdc589055cfcdd43", "partition": "agent_dev", "positive_items": ["B07N5J3GTB", "B0C39H86Q1", "B091MZPYBQ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live karaoke performance and need a handheld vocal microphone, a long cable to connect it to my audio equipment, and a foam cover for cleaner, more reliable singing."}
{"candidate_id": "dev-24556021be164200b06f96aa", "partition": "agent_dev", "positive_items": ["B003V8BE7Q", "B0753PSL2D", "B00FONJ6AI"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refurbishing my acoustic drum kit for focused home recording and practice, with a warm bass-drum tone, crisp responsive snare sound, and strong isolation for monitoring in a noisy room."}
{"candidate_id": "dev-24ae15de76e21b7febd2473b", "partition": "agent_dev", "positive_items": ["B078B3C1MG", "B07RM7XVC7", "B086KQWM26"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I want to assemble a compact DIY electronic music setup with a tiny synthesizer, a step sequencer for creating repeating melodies and rhythms, and short mono patch leads to connect their audio, clock, and control signals."}
{"candidate_id": "dev-24c2f840660d1f776af8f287", "partition": "agent_dev", "positive_items": ["B008O517I2", "B0B31RCL2G", "B08NVVLB16"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a small live vocal performance and need a reliable vocal pickup, a compact way to balance the sound, and powered amplification for the audience."}
{"candidate_id": "dev-24db5e38d3ec025558bba93c", "partition": "agent_dev", "positive_items": ["B07FL9G2J2", "B07NSWD8BR", "B003GEKXZY"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m preparing a small bass-and-vocal gig and need to replace a broken bass string, amplify vocals with a wired mic, and raise the PA speaker securely off the floor."}
{"candidate_id": "dev-254d23112f3bc055953162b5", "partition": "agent_dev", "positive_items": ["B079H54ZB1", "B00QYUVO0U", "B0CF93TNBW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m upgrading my drum setup for versatile practice and live playing, with a complete range of cymbal sounds, responsive durable sticks for fast playing, and an auxiliary hi-hat or stack mount with adjustable tension."}
{"candidate_id": "dev-255484f93e66f9eec1fd9d59", "partition": "agent_dev", "positive_items": ["B07NC65P91", "B07DS7X642", "B07QL42V3J", "B09DKK227R"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing a Strat-style electric guitar for versatile rock tones and need a quieter, coil-splittable pickup, stacked overdrive and high-gain options, plus vintage-looking replacement strap hardware."}
{"candidate_id": "dev-2557b12d4d7b2a595eeef33d", "partition": "agent_dev", "positive_items": ["B00G3785WO", "B076JNXG11", "B0C71B7WCD"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m upgrading my electric guitar, refreshing my alto sax setup, and recording both instruments at home for a high-gain rock demo on my computer."}
{"candidate_id": "dev-255bd43483bd66adb88d6741", "partition": "agent_dev", "positive_items": ["B003V8BE4E", "B00NZ81OH2", "B0002F71NM", "B07V3NL6JD", "B09HL6MZ45", "B0BK6S7QF4", "B07C91W874"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m refreshing my drum kit for live gigs and want to restore my bass pedal, rebuild and tune a 13-inch snare, control unwanted overtones, improve cymbal isolation, and monitor my playing clearly through in-ear headphones."}
{"candidate_id": "dev-2561559501840ebae04b6298", "partition": "agent_dev", "positive_items": ["B00JL5I3AO", "B0B95V41NR", "B079TLFL33"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m assembling a compact electric guitar setup for rehearsals and small gigs, with a secure strap connection, a short right-angle cable for clean signal routing, and grippy picks for precise playing."}
{"candidate_id": "dev-256cd4f598f150f9d6186c80", "partition": "agent_dev", "positive_items": ["B00KMFUCC4", "B09L63KCYZ", "B01AAX6KGY"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a beginner-friendly home music corner where I can learn keyboard notes, keep my guitar safely off the floor, and practice comfortably from a padded seat."}
{"candidate_id": "dev-25ac76582022c881a8badcf5", "partition": "agent_dev", "positive_items": ["B01MS55LE0", "B01DPCONFM", "B07CYRYQ8G"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I want to build a home guitar recording setup that lets me send my electric guitar to either of two amps or both, then capture the performances through a reliable multi-channel audio interface."}
{"candidate_id": "dev-25ae7ccd57fe92d0e70fa234", "partition": "agent_dev", "positive_items": ["B005KUZYFQ", "B06Y4CRF66", "B07D4QCBX4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up an electric guitar rig for creating dreamy, warbled indie tones with classic pitch vibrato, lo-fi chorus textures, and a comfortable versatile guitar."}
{"candidate_id": "dev-25bcff1ae27a01dd6d02a8c0", "partition": "agent_dev", "positive_items": ["B07SFYY1VJ", "B0BKZ5JSVF", "B09TXP3FSK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m writing drum parts for an original music project and need quality notation paper for composing, a tunable practice surface, and reliable sticks for working through rhythms at home."}
{"candidate_id": "dev-25c3890b82d94f786473598b", "partition": "agent_dev", "positive_items": ["B001GDJQTG", "B00JA4T71U", "B09YW3PJ7V"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting ready to play acoustic guitar at casual gigs and need a comfortable way to hold it, change keys quickly, and pick consistently with my thumb."}
{"candidate_id": "dev-25fad75c7235c40eea4965d3", "partition": "agent_dev", "positive_items": ["B09HCVK4YC", "B00K7VDMJS", "B0BCXD2QDB", "B0BKZ1G3P3"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my drum kit for a deep, focused rock sound and need matching heads for the bass drum, several toms including an 18-inch, and a durable coated 13-inch snare head."}
{"candidate_id": "dev-25fd8dd0458b5fa824fcd868", "partition": "agent_dev", "positive_items": ["B09ZTH41G7", "B096ZHMFS1", "B0BG4P4XJW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home vinyl DJ station and need a compatible cartridge for clean playback, a mixer for blending records with Bluetooth and microphone inputs, plus a fitted cover to protect the turntable between sessions."}
{"candidate_id": "dev-261cac06920b1b4bc43ff1d1", "partition": "agent_dev", "positive_items": ["B08KRDKZ6K", "B0BPJ4Q6FJ", "B0002F5C7Y"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a small acoustic-pop performance and need brighter high-strung guitar accompaniment, handheld percussion for added rhythm, and a compact stand to keep my guitar safely ready between songs."}
{"candidate_id": "dev-2626e9cd027d26606a8486a2", "partition": "agent_dev", "positive_items": ["B00B3PB1G8", "B00HITH1AS", "B0085545YO"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing an ambient guitar setup for recording, needing smooth volume swells, flexible tone shaping, and a reliable way to stretch the strings during setup before tracking."}
{"candidate_id": "dev-262933ed789ecc90e1aec1a2", "partition": "agent_dev", "positive_items": ["B06Y23191B", "B09R2TMLJR", "B0BPLFP5P6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my guitar ready for regular practice and small gigs, and need a way to keep it accurately tuned, play precise lead parts, and wear it comfortably and securely while standing."}
{"candidate_id": "dev-263b3afbadaf9a057be3cbaa", "partition": "agent_dev", "positive_items": ["B0030M2ERC", "B0B9JY93M7", "B09D8VQY2D"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my drum kit for hard-hitting rehearsals, needing durable 14-inch snare and 12-inch tom heads plus comfortable, versatile sticks with a secure grip."}
{"candidate_id": "dev-263cf5bbc40631d1e8288bc7", "partition": "agent_dev", "positive_items": ["B0002LD2WK", "B01HJX2CY2", "B07N4WQGC7"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m organizing a lively folk-blues busking set and need to refresh my bass’s sound, keep it supported while I play, and add a washboard for handheld percussive rhythm."}
{"candidate_id": "dev-26c4584ddd7dbc073c7890ba", "partition": "agent_dev", "positive_items": ["B07226MCY6", "B0BFKQ9QXD", "B00CGFRJ2Y"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refreshing my acoustic guitar setup for regular playing and small performances, and need accessories for comfortable hands-free playing, a warm traditional tone, and a richer, clear sound from a fresh set of medium-gauge strings."}
{"candidate_id": "dev-26e326bf3b4468b94b3fb69d", "partition": "agent_dev", "positive_items": ["B0189HNB1U", "B014EYBSC6", "B014EYBS6C"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring a full-size violin and need a replacement ebony tailpiece, something to improve peg tuning friction, and a precise fine tuner for a loop-end E string."}
{"candidate_id": "dev-26e9c1fb72a6054649fe6d41", "partition": "agent_dev", "positive_items": ["B07ZD2XQVN", "B09PBL98Q4", "B0B5GX87XQ", "B074GXRXVR"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing a compact guitar pedalboard: I need compression for guitar or bass, short connectors to link pedals closely, one 9V supply with multiple outputs, and replacement true-bypass footswitches for rewiring older effects."}
{"candidate_id": "dev-26ec821512bf189359420e05", "partition": "agent_dev", "positive_items": ["B00T3G1OMA", "B01FS4JNVY", "B001PPXFAG"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing a home clarinet performance recording and need dependable reeds, a tidy way to carry and protect my sheet music, and simple low-latency connection for a condenser microphone."}
{"candidate_id": "dev-26f22d6aac2acb76bc596a85", "partition": "agent_dev", "positive_items": ["B07RP3RWD2", "B00IWWZAM6", "B0BT9R8MMV", "B01DE4DEGK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a small home music-production setup for playing and recording virtual instruments, and need a velocity-sensitive keyboard with hands-free sustain, a balanced audio connection, and an isolation riser to reduce vibration from my studio monitor."}
{"candidate_id": "dev-271edeca41aee29c7a56a81b", "partition": "agent_dev", "positive_items": ["B01M15915O", "B012F2891C", "B005OZE9SA"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable electric-guitar setup for recording demos and playing small gigs, with reliable USB recording, organized effects, and sturdy protection for transporting the instrument and gear."}
{"candidate_id": "dev-273f69ff9754bd4a3f030675", "partition": "agent_dev", "positive_items": ["B0BXT384GR", "B00CIO6BEA", "B07JZQBNDG", "B001N0BQVS"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a home recording setup for my classical guitar performances and need a USB microphone for vocals or instrument recording, plus heavy picks, an adhesive pick holder, and a soft case to protect the guitar between sessions."}
{"candidate_id": "dev-274f0fbfb78e2f2cc28d14bf", "partition": "agent_dev", "positive_items": ["B00J3FIZDW", "B0BCXTPJR2", "B0179A4ILK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m upgrading my USA electric guitar with a reliable locking wraparound bridge for precise intonation and a comfortable leather strap that stays securely attached during rehearsals and gigs. I’d like compatible hardware and an easy installation."}
{"candidate_id": "dev-2768e38ceb5d5edaede0dde9", "partition": "agent_dev", "positive_items": ["B07JZQBNDG", "B01M72N0A6", "B07PSWC1XY"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m creating beginner violin lesson videos at home, so I need a complete starter instrument setup plus an easy computer-connected studio microphone and plosive protection for recording clear spoken instruction alongside my playing."}
{"candidate_id": "dev-27924c1b6b80205a965e3b24", "partition": "agent_dev", "positive_items": ["B0B29N7VC8", "B0BK5CXZBT", "B08L4YMSHD"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring my Strat-style electric guitar and need to clean the finish gently, replace the worn top nut, and add low-friction string retainers for smoother tuning and better string alignment."}
{"candidate_id": "dev-27e399fdabbed026dfe73597", "partition": "agent_dev", "positive_items": ["B00PKP3EG2", "B00P6ZOPP0", "B00H35YIJE", "B07R3S93K8"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a small guitar practice and performance area and need easy tuning, comfortable picking, a secure strap connection, and safe wall storage for my instruments."}
{"candidate_id": "dev-27f1f94bb6e3de649d92cab8", "partition": "agent_dev", "positive_items": ["B09ZTHDXTD", "B09ZSKPVVJ", "B001LXMXU0"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up DMX stage lighting for a small live event and need reliable connections from the lighting controller to fixtures across the stage, including a longer run and a shorter link for nearby equipment."}
{"candidate_id": "dev-280d0b17503d58ba38ad9dac", "partition": "agent_dev", "positive_items": ["B0B8FSCM9L", "B08R5GM6YB", "B07BK1KRMZ", "B08TVWY2WY", "B09SZK8WJ5"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a beginner electric-guitar practice setup so I can learn chords, experiment with different keys, build finger strength and coordination, practice quietly or with overdrive, and handle basic string changes myself."}
{"candidate_id": "dev-28183c73bf785f95df6ab5cf", "partition": "agent_dev", "positive_items": ["B0002F59ZY", "B0147TRAKM", "B076VWZWYG", "B0B2F781MF"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact setup for a brass performance where I switch between trumpet and flugelhorn. I need a comfortable, moisture-resistant way to protect my trumpet, a controlled-sounding mouthpiece, and stable in-bell stands for both instruments."}
{"candidate_id": "dev-2830d932c195384dc5b029b5", "partition": "agent_dev", "positive_items": ["B07MFYHKLH", "B00H35YIJE", "B0002D0CEO"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m getting my electric guitar ready for regular playing and need replacement strings, a supply of medium-thin picks, and hardware to keep the strap securely attached during rehearsals."}
{"candidate_id": "dev-283512c3aca99a13acc66032", "partition": "agent_dev", "positive_items": ["B00JX5WGNC", "B0919BMVMN", "B07GZBYKWV"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a compact, road-ready guitar effects setup for blues and rock, with warm overdrive, reliable pedal power, and short, low-noise connections between everything."}
{"candidate_id": "dev-28426fe0bb2464a80e792fcd", "partition": "agent_dev", "positive_items": ["B007M0HKEA", "B09TLRF785", "B007EJR7F6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable drum setup for rehearsals and gigs and need dependable sticks, easy cymbal transport, and protection for my large PA speaker."}
{"candidate_id": "dev-286d5c017b2e6f45de8b60e1", "partition": "agent_dev", "positive_items": ["B00CPLODUU", "B0043UVY58", "B0BK6S8QDW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my band’s live set and need to tighten the kick drum sound for close miking, change keys quickly on a six-string acoustic guitar, and restring the electric guitar with strings that stand out under stage or UV lighting."}
{"candidate_id": "dev-2873ff158bdc39448b8dedc5", "partition": "agent_dev", "positive_items": ["B0002E1UDK", "B0B7C52N2F", "B01AW50JXA", "B00VTCMO98"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up my 9-string electric guitar for a live rig and need fresh strings, a replacement slotted nut, short right-angle pedal connections, and a secure belt-mounted pouch for my wireless transmitter."}
{"candidate_id": "dev-2874ecabdd444b28d7c334a4", "partition": "agent_dev", "positive_items": ["B07N1RPV4J", "B06XPFFQ2Q", "B000V6EEZ0"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my alto saxophone ready for rehearsals and travel, and need a gentle way to remove internal moisture, keep the pads seated during transport, and store my reeds securely at stable humidity to prevent warping or damage."}
{"candidate_id": "dev-28f3dcac3f8543b94d727cfe", "partition": "agent_dev", "positive_items": ["B07D1D3V1F", "B09ZLG59TQ", "B07V22M8F4", "B09JCBWL7Q", "B071RDRW7D", "B09198262S"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refurbishing my RG-style electric guitar for dependable floating-tremolo performance and stage use, with a compatible Floyd-style bridge upgrade, added tremolo stability, a pearloid replacement pickguard, a quick-release strap, and an accurate clip-on tuner."}
{"candidate_id": "dev-2914d44e10e080a71e6c5559", "partition": "agent_dev", "positive_items": ["B00N5THCL8", "B000BNQ75S", "B00646MZHK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I'm preparing a two-guitar acoustic set and need a compact setup that keeps both instruments safely within reach, lets me change keys quickly, and makes precise clip-on tuning easy between songs."}
{"candidate_id": "dev-2942c8d3458c1751d799ff28", "partition": "agent_dev", "positive_items": ["B07PPHHG34", "B0BT2W3TTM", "B0BKKSQFDG", "B0098ULU1G", "B0C4TWPX2R", "B0BCXKFMKG"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m restoring an older Strat-style electric guitar and need compatible replacement body hardware, a pickguard, tremolo control, output connection, fresh durable strings, and a safe wall-mounted way to store and display the finished instrument."}
{"candidate_id": "dev-2973ee584d1cdf6e800bdd9c", "partition": "agent_dev", "positive_items": ["B000F3KSPO", "B000EELF7O", "B004MCDIH4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up to practice my full-size cello at home and need reliable bow grip, a way to keep the instrument steady without marking the floor, and affordable accessories for smooth, controlled playing."}
{"candidate_id": "dev-299765ff6b9671e71aecb2ce", "partition": "agent_dev", "positive_items": ["B07XLVFHJ1", "B0916MP75Y", "B091MZPYBQ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a tabletop interview podcast and need a clear handheld vocal microphone, stable adjustable desktop positioning, and protection from breath, wind, and moisture during recording."}
{"candidate_id": "dev-299b9806d94077c10c7089fe", "partition": "agent_dev", "positive_items": ["B09R5C89XM", "B01MDO86BN", "B018VAQWEI"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my home guitar practice setup and need comfortable adjustable foot support plus durable, long-lasting string sets for both my electric and acoustic guitars, with reliable tuning and tone for regular playing."}
{"candidate_id": "dev-29a0052576f76976c97148e7", "partition": "agent_dev", "positive_items": ["B07RV6PTX5", "B0B8Z34Y9M", "B075RFCKYW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring an old Jazz Bass and need reliable replacement controls and wiring, plus a lightweight combo amp to test the finished instrument and rehearse at home."}
{"candidate_id": "dev-29e31a58187b71748ce62eca", "partition": "agent_dev", "positive_items": ["B0083EI8HC", "B0BKZ5F8BS", "B07MVCN9XT"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my five-string bass for regular playing and need mellow, smooth long-scale strings, a comfortable leather shoulder strap, and supplies for cleaning, restringing, and making basic setup adjustments."}
{"candidate_id": "dev-2a588a79807d4b9c3d8a0949", "partition": "agent_dev", "positive_items": ["B09RJZSQML", "B09NWCD36N", "B01K1EJQ9U"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a guitar practice and jam station where I can experiment with different pick gauges and materials for acoustic strumming or heavier playing, while keeping picks conveniently mounted nearby."}
{"candidate_id": "dev-2abcdc5d06a2c31937d06ea9", "partition": "agent_dev", "positive_items": ["B093YKLWVN", "B0BPJ4Q6FJ", "B09DDQ3T57"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing a layered electric-guitar recording and need strings for both a Nashville high-strung part and a regular-light setup, plus fretboard oil to clean and restore the instruments."}
{"candidate_id": "dev-2ad5c6bd14edd9b8b1d68f57", "partition": "agent_dev", "positive_items": ["B01KPTR5A8", "B00N19LGZ0", "B0027V760M"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I need a compact setup for playing a live gig: safely carry cymbals and sticks, keep accessories organized, and send an instrument’s signal cleanly to the PA with noise-control options."}
{"candidate_id": "dev-2af35c2bca5bfea45eaf83a4", "partition": "agent_dev", "positive_items": ["B07Q1K4Q5S", "B07175R5XR", "B00XQCAYVO", "B00MEVC3SA", "B00II6VKSO", "B00979RZ9O", "B0B93DTDH8"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m rebuilding and upgrading my Floyd Rose-equipped electric guitar for fast, precise playing and studio recording, with a quieter tremolo, stronger locking hardware, smoother arm movement, more sustain, fresh light-gauge strings, and sharp, articulate picks."}
{"candidate_id": "dev-2b113e2b6e53a491f9b2c64b", "partition": "agent_dev", "positive_items": ["B0002F519I", "B07NKSD9ZM", "B0002E2O2Q"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a quiet, portable drum practice setup for late-night stick-control work, with adjustable timing exercises and headphones that block outside noise so I can hear clearly without disturbing anyone."}
{"candidate_id": "dev-2b304269ad3de0c7b8504a9f", "partition": "agent_dev", "positive_items": ["B0753X8MDJ", "B01DE4DEGK", "B0C3BSXX6N"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I want to record a polished vocal demo at home, capturing clear studio vocals through a condenser microphone, routing the signal into a USB recording setup, and making reliable balanced audio connections between my gear."}
{"candidate_id": "dev-2b67917175f71c327acfde1c", "partition": "agent_dev", "positive_items": ["B073C7Z1PQ", "B07C38K7ZH", "B07MDPF4SZ"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a playful acoustic music setup for children’s sing-alongs and want a small stringed instrument for chords, a hand percussion piece for steady rhythm, and a frog-like raspy sound effect."}
{"candidate_id": "dev-2b699338fa68f254c391be0f", "partition": "agent_dev", "positive_items": ["B07C9YCY5J", "B00I58V4EK", "B000RW4WSM", "B073T2266G", "B0C61YYGT9", "B001L8NGJ2", "B00646MZHK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a reliable guitar rig for rehearsals and small gigs, with flexible chorus and overdrive tones, a clean boost, accurate tuning, a compatible replacement amp tube, hands-free amplifier switching, and tidy microphone-stand cable management."}
{"candidate_id": "dev-2b88d285b5a5a5c0438afa96", "partition": "agent_dev", "positive_items": ["B07Y2R3Z2D", "B07V46KRD8", "B0BKZ7FHHW"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing a small jazz-and-folk recording session and need smooth, mellow strings for my seven-string electric guitar, bright replacement strings for mandolin, and durable flat picks for clear, expressive playing."}
{"candidate_id": "dev-2ba80b956a3810ff89958f7e", "partition": "agent_dev", "positive_items": ["B004Y2YCFE", "B01MY9K7Z8", "B09V9172YN"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refurbishing my vintage-style electric guitar for rehearsals and want a period-inspired bridge tone, quick accurate tuning between songs, and medium picks that are easy to find during dim performances."}
{"candidate_id": "dev-2bb91cd7a746417a69ee1cb6", "partition": "agent_dev", "positive_items": ["B08Z5XSKP8", "B08Z5ZQB7F", "B0C38LLMXG"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a small recording setup and need color-coded balanced leads to connect microphones, mixer inputs, and outboard gear, with flexible short runs plus longer TRS patch connections for keeping the signal chain organized and quiet."}
{"candidate_id": "dev-2bcf1c38605b6c1b155da94b", "partition": "agent_dev", "positive_items": ["B0BPJ4Q6FJ", "B0BTC9YJ2W", "B0BSGM6CQ9"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m recording layered guitar parts for a song and need a bright high-strung electric setup for doubled textures, warm extra-light strings for my 12-string acoustic, and a heavier nickel electric set for contrasting lead or rhythm tones."}
{"candidate_id": "dev-2bd3e992011b7c7431eb77cb", "partition": "agent_dev", "positive_items": ["B08R5GM6YB", "B077RV29RD", "B09V91H5XM", "B0179A4ILK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my guitar ready for rehearsals and gigs, so I need picks for different playing feels, an all-in-one restringing tool, and a comfortable adjustable strap with simple locks to keep it secure."}
{"candidate_id": "dev-2c029bb7e93dacc1176a662a", "partition": "agent_dev", "positive_items": ["B078PG7NBY", "B0036FFDSK", "B0B8Z6GZZ5", "B01DPCONFM"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m getting my electric guitar ready for gigs by replacing loose hardware, improving tuning stability, and connecting it to my amp and a hands-free control setup."}
{"candidate_id": "dev-2c154c56012f0580b329e6a4", "partition": "agent_dev", "positive_items": ["B09R6KV6QX", "B0158GWWJ2", "B00TV90MT0"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my steel-string guitar for a focused practice and maintenance session, needing reliable chord changes, sturdy picks for playing, and a soft adjustable neck rest to keep it secure while I work."}
{"candidate_id": "dev-2c357016a2205bdbbdcd8687", "partition": "agent_dev", "positive_items": ["B0BHWQ8YZ9", "B0889C84KX", "B00IBIUZGW"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m building a hybrid acoustic drum setup for live playing and need electronic triggering from my bass drum plus a compact module and easy control over unwanted ring and overtones."}
{"candidate_id": "dev-2cfa486fea6c0de154622164", "partition": "agent_dev", "positive_items": ["B00DODBX1A", "B0B95V41NR", "B09RTZ26KV"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a compact electric-guitar rig for practicing and recording, with a distortion effect, a short reliable connection, and precise non-slip picks for fast, articulate playing."}
{"candidate_id": "dev-2d15f3992797491742dca987", "partition": "agent_dev", "positive_items": ["B0BSGM6CQ9", "B09RTZ26KV", "B012F2891C", "B07JCW1KGG"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact electric guitar rig for rehearsals and gigs, including a heavier-gauge restring, tidy close-together pedal connections, a protective board case, and precise non-slip picks for fast playing."}
{"candidate_id": "dev-2d1b91f80b487e45e5def57a", "partition": "agent_dev", "positive_items": ["B005FC7MAO", "B0BNQPX2LZ", "B07FYJ7ZLJ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my electric guitar ready for regular rehearsals and need hands-free playing support, an unobtrusive way to tune while playing, and a compact kit for cleaning, restringing, minor adjustments, and keeping picks organized."}
{"candidate_id": "dev-2d5a7a3f0d34c4bfc8fbc8d0", "partition": "agent_dev", "positive_items": ["B0B8LVM1YS", "B0BCXRXTNY", "B0BPJ4Q6FJ", "B0BTC9YJ2W"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a Beatles-inspired recording with a Telecaster and 12-string acoustic, and need a compatible mint-green Tele pickguard, bright Nashville-tuning electric strings, warm extra-light 12-string acoustic strings, and a Beatles-themed strap for playing comfortably."}
{"candidate_id": "dev-2d5ea553c91e1b1937859c3a", "partition": "agent_dev", "positive_items": ["B07GZHQBZ9", "B00M3ETMM8", "B07L92CFHW"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m restoring an electric guitar with worn hardware and need compatible replacements to secure the strings at the nut and bridge, while replacing the tuning machines for smoother, more reliable adjustments."}
{"candidate_id": "dev-2d7d8f4a5e43308053aa3adf", "partition": "agent_dev", "positive_items": ["B000R4LQ4S", "B016QUXTZU", "B07CQMZVYL"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I want to record a polished vocal demo at home with keyboard accompaniment, using a computer-connected MIDI keyboard, a studio condenser microphone, and a pop filter to capture clear vocals with fewer plosive bursts."}
{"candidate_id": "dev-2da305ef4608c4e658e6cf23", "partition": "agent_dev", "positive_items": ["B01DE4DTAG", "B00JQYUAQU", "B0BZ5QTMKT", "B073XXLVWT", "B007FM75B8", "B0188WO6OC", "B07MG8PHF2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home guitar and bass recording station where I can safely service instruments, refresh strings, connect pedals, power a pedalboard, mount a microphone, keep a wireless receiver on my strap, and securely install rack equipment."}
{"candidate_id": "dev-2da452af7e8f7b5212447f56", "partition": "agent_dev", "positive_items": ["B01448TORS", "B015BKBGZG", "B015X3CXXA", "B08BW2TBD7"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refurbishing an electric guitar for drop tuning: I need to refresh its strings, replace the volume and tone controls, practice layered parts with simple looping, and keep the finished instrument safely supported between sessions."}
{"candidate_id": "dev-2dacfbfe9a07e3e314f301be", "partition": "agent_dev", "positive_items": ["B0BLLDYSL7", "B08DBDD6CM", "B091MZPYBQ", "B01DE4DPSC", "B0002MDTVS"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a small outdoor singer-songwriter performance and rehearsal setup, and need reliable connections for vocal and instrument audio, a hands-free place for lyrics or charts, a mic stand, and basic wind and spit protection."}
{"candidate_id": "dev-2db53df928a3137773b555db", "partition": "agent_dev", "positive_items": ["B00T3FTEMS", "B00TH48SW2", "B00TH4FMIA"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m preparing for a performance switching between alto and soprano saxophone, and need a secure alto mouthpiece setup with a protective cap, responsive projecting alto reeds, and firmer soprano reeds for precise attacks and a rich, centered sound."}
{"candidate_id": "dev-2dd6dc4cddcf905d52e489b3", "partition": "agent_dev", "positive_items": ["B08BNN8VDT", "B09397DT4Y", "B013ZHK4DM"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m looking for a beginner-friendly full-size acoustic setup I can customize with removable fret markers and use to smooth any sharp fret ends while learning to play."}
{"candidate_id": "dev-2debbf320e625859bb817f63", "partition": "agent_dev", "positive_items": ["B076H6BT6N", "B001F12F6U", "B002Q0WTDS", "B07B4ZZVDV", "B00TH3YPDE"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for a mixed woodwind recital and need supplies to maintain my tenor sax, protect its mouthpiece, play comfortably, and refresh my clarinet setup with mouthpiece protection and responsive reeds."}
{"candidate_id": "dev-2dffa2b3917fca58f3265d0a", "partition": "agent_dev", "positive_items": ["B00AHKX9TM", "B09SH423ZY", "B00VU3QBVS"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my EVH Stripe Series Star for rehearsals and local gigs and need weather-resistant padded transport, a secure locking strap, and guitar picks for playing."}
{"candidate_id": "dev-2e3c4490dfa161bfbbef32fb", "partition": "agent_dev", "positive_items": ["B00B7G2OAU", "B08FZBDP68", "B01DOEPUTE"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a live drum recording and need close-miking for the kit, plus a mounted auxiliary percussion accent and an expressive effects cymbal to add punch and texture."}
{"candidate_id": "dev-2e81102839a514d917ece81a", "partition": "agent_dev", "positive_items": ["B07YM5ZHS9", "B0002D01JA", "B0BPJ4Q6FJ", "B01C5TCB3M"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for home recording sessions with acoustic and electric guitar parts, so I need reliable replacement strings for both instruments, closed-back headphones for accurate monitoring, and sturdy protection for transporting my dreadnought acoustic."}
{"candidate_id": "dev-2e8cb86b94f01bad6f2e713f", "partition": "agent_dev", "positive_items": ["B07JKR9PJ1", "B074V129H6", "B00U31IDXM"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m building a versatile rock guitar pedalboard for recording and live leads, with an expressive wah, touch-responsive overdrive, and stackable hot-rodded amp-style gain that can move from warm blues tones to saturated solos."}
{"candidate_id": "dev-2eb0652071635ee5f2b13cac", "partition": "agent_dev", "positive_items": ["B0BHSG5C3G", "B000EENH5W", "B07DMS2QNL"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I want to start learning ukulele and need a simple setup for practicing songs, keeping the instrument in tune, and changing keys comfortably while I play."}
{"candidate_id": "dev-2ec51f54d00d732030bed440", "partition": "agent_dev", "positive_items": ["B076ZTL3ZW", "B091RYBGDY", "B09RN7GR8F"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I want to record a small rock demo featuring both full-size and compact electric guitar parts, with an audio interface that can capture the instruments and leave room for additional studio connections."}
{"candidate_id": "dev-2ed2a84c8a37a52143c9437f", "partition": "agent_dev", "positive_items": ["B00BESRB8Q", "B07ZTRZT7D", "B01DP0GO7Y", "B0B574BW3B"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a compact home songwriting and recording session where I can keep my guitar in tune, change its key cleanly, connect it to my setup, and control virtual instruments and software from a small keyboard."}
{"candidate_id": "dev-2ed3bdd78b21526bb73a0859", "partition": "agent_dev", "positive_items": ["B07SZLB9GM", "B0B7Z4M62T", "B01DPCONFM"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a small amplified ukulele performance corner at home and need an acoustic-electric ukulele, a reliable connection to an amplifier, and a stable stand for storage between sessions."}
{"candidate_id": "dev-2f1ea78ab9e08c0eddbd6759", "partition": "agent_dev", "positive_items": ["B07GS5R4TX", "B0BYJN7JWQ", "B015HG7HMA", "B09V91H5XM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my guitar ready for a small live rehearsal and need essentials to keep it secure while playing, tune it accurately, connect to an amplifier, and have reliable picks for performing."}
{"candidate_id": "dev-2f23f870b52660ef5234a584", "partition": "agent_dev", "positive_items": ["B015JTEBN8", "B00C86FA0E", "B07DLC9KYG"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a home recording session for alto saxophone and need a way to improve the reed’s tonal response while securely positioning a condenser microphone and reducing stand and handling vibrations."}
{"candidate_id": "dev-2f25f21eeb27f2bbc5eb2dfa", "partition": "agent_dev", "positive_items": ["B0050DDKYU", "B0050DDL3K", "B09P3ZVLV8", "B0BQ4HSKC9"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m wiring a compact live-music mixer and need color-coded balanced XLR leads for tidy short equipment connections plus a slightly longer microphone run."}
{"candidate_id": "dev-2f5c01685932f2ccd5ca29b3", "partition": "agent_dev", "positive_items": ["B0010CRRGW", "B0BTC9YJ2W", "B000CZ0RII", "B076DGQ45Z"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small recording studio for a 12-string acoustic session: I need fresh extra-light strings, two-channel microphone gain, and organized balanced XLR and quarter-inch signal routing between the microphones, preamp, and recording gear."}
{"candidate_id": "dev-2f6025e096d341cabd948019", "partition": "agent_dev", "positive_items": ["B0B3NJ1TDB", "B001JJB2GM", "B01DN7OI40", "B07C91JT14"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live vocal performance with three singers, a long low-noise connection to the mixer, one microphone routed to two console channels, and centralized rack power for the audio gear."}
{"candidate_id": "dev-2f74eb8634bf70b0e34413d9", "partition": "agent_dev", "positive_items": ["B01HKU6GYQ", "B09V91H5XM", "B0BK5CXZBT"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my electric slide guitar ready for a Hawaiian-style performance and need a gentle way to clean the finish, comfortable support for playing standing up, and a steel tone bar for smooth slide technique."}
{"candidate_id": "dev-2f8c22089598c4326f09a354", "partition": "agent_dev", "positive_items": ["B082Q2Y9VY", "B07M6B3RDW", "B09CDGH2SM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up my guitar to eliminate fret buzz and improve playability, so I need reliable ways to inspect neck straightness and string height, level the frets evenly, and accurately retune the instrument afterward."}
{"candidate_id": "dev-2fbbc963d1f28676d3a05335", "partition": "agent_dev", "positive_items": ["B07FZ5XBCJ", "B00HU260SW", "B0BSGM6CQ9"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up for a guitar performance and home recording session, and need a reliable way to connect my electric guitar to the mixer, plus heavier-gauge strings and precise picks for playing."}
{"candidate_id": "dev-2ffabbc1de76d51454b866f6", "partition": "agent_dev", "positive_items": ["B07CQQXQ4T", "B00P0415EQ", "B009KXWF24"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home karaoke and vocal recording station and need to keep microphone noise under control, filter electrical interference, and run balanced audio cleanly between the microphones and equipment across the room."}
{"candidate_id": "dev-303709e51814ef49498f6c51", "partition": "agent_dev", "positive_items": ["B076346CZ9", "B01AAX6KGY", "B001631N9M", "B07GYZ2DGT"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a playable cigar-box electric guitar and need a jazz-style pickup, fresh flatwound strings, a comfortable adjustable strap for rehearsing, and a secure stand for storing it between sessions."}
{"candidate_id": "dev-3098b1aefcc3fbb414cac63b", "partition": "agent_dev", "positive_items": ["B011CHL4ZY", "B09G5KLKX2", "B0B3VDFKB3"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my electric guitar for a classic-rock practice session and need warm-toned strings, dependable picks for heavy strumming, and finger picks for controlled fingerpicked passages."}
{"candidate_id": "dev-30c1ab31d4fd226c86ef9081", "partition": "agent_dev", "positive_items": ["B07CRK35NG", "B08R5GM6YB", "B0BT84L827"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my electric guitar for rehearsal and need to replace a broken .019 string, tune it with a proper restringing tool, and check the finished sound through a powerful, versatile amp."}
{"candidate_id": "dev-30efaec7791a7f04b5459470", "partition": "agent_dev", "positive_items": ["B07SPHH7TD", "B018FCZKR2", "B0BHSG5C3G"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up my guitar for regular practice and small performances, and need comfortable hands-free support, reliable tuning, and a safe way to keep it upright between sessions."}
{"candidate_id": "dev-310e8a4e51b11688486421f5", "partition": "agent_dev", "positive_items": ["B086QM1F75", "B0BKR2ZM9X", "B07KDYH2DF", "B07R28FF44"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m upgrading my electric guitar for reliable live gigs and need smoother overdrive, quick stage tuning, a portable pedal setup with carrying protection, and locking tuners for better tuning stability."}
{"candidate_id": "dev-3113993faf82e62ef3408ca7", "partition": "agent_dev", "positive_items": ["B07W14QJT8", "B008H50MIK", "B00SUCR34Q"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home music recording station to capture vocals and instruments, connect multiple balanced microphone lines, and play finished mixes wirelessly through my existing audio system."}
{"candidate_id": "dev-3142b97b2d6f2fe0e607e559", "partition": "agent_dev", "positive_items": ["B08KVLVJ86", "B018ECP1VS", "B07L9GQMLZ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring and setting up a mixed guitar collection: correcting an acoustic guitar’s bellied soundboard and bridge area, securely supporting a neck while leveling frets, and accurately setting intonation on a Floyd Rose tremolo guitar."}
{"candidate_id": "dev-314c170a25ecffd1b89d27e3", "partition": "agent_dev", "positive_items": ["B09R6KV6QX", "B09BF8XDF4", "B0BTC9YJ2W"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing for an acoustic set and need to restring both my six-string and twelve-string guitars, with lasting tone, a comfortable medium feel on one, lighter tension on the twelve-string, and durable picks for strumming."}
{"candidate_id": "dev-31985daeb9fff403fa51b3cc", "partition": "agent_dev", "positive_items": ["B08T2N27DG", "B0753X8MDJ", "B01DK43HMK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home studio to record vocals and synth performances, with a clear desktop microphone, an audio interface for connecting everything to my computer, and reliable MIDI connectivity for my keyboard."}
{"candidate_id": "dev-31d1afa7ace9872f77f63231", "partition": "agent_dev", "positive_items": ["B00IFOTSJW", "B0085545YO", "B00N4ZHQ14"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my guitar for a live rehearsal and need a way to settle fresh strings, check the tuning accurately, and change keys quickly without risking the instrument."}
{"candidate_id": "dev-323bf063881ee7815ff528cb", "partition": "agent_dev", "positive_items": ["B00IFOTSJW", "B0064S63MQ", "B01JZ4J3KE"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my electric guitar setup for home practice: I need fresh light strings, a compact replacement speaker for a low-wattage combo amp, and an easy clip-on tuner for accurate setup and rehearsal."}
{"candidate_id": "dev-326c35df8b1e3c4faa8b589d", "partition": "agent_dev", "positive_items": ["B07DL3DR2D", "B089ND6BCY", "B072JT59TD"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home practice station for learning piano, with a full-size weighted digital keyboard, an adjustable stable stand, and closed-back headphones for quiet playing."}
{"candidate_id": "dev-327052c547940b69d5f176e7", "partition": "agent_dev", "positive_items": ["B001P3SLVQ", "B0848SWZJX", "B09VL4J9J6", "B000EEJH9C"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring a four-string bass and want a low-noise passive tonal upgrade, lighter accurate tuning hardware, a fresh coated string set, and secure replacement controls for the instrument."}
{"candidate_id": "dev-32a576c9b1e38e8d29c1c643", "partition": "agent_dev", "positive_items": ["B000EEJGRK", "B0B92LPGD2", "B0B8M2Q1DS"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a safe, practical space for playing and storing my electric guitar, with secure wall display, better string tension for tuning stability, and a comfortable adjustable strap for rehearsing or performing."}
{"candidate_id": "dev-32ce4d923eca77352766b8da", "partition": "agent_dev", "positive_items": ["B07YJZGP5X", "B0BKZ7FWT7", "B019LR2XTS"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a small marching-percussion recording session and need an articulate tenor mallet for performance, several adjustable boom supports for microphones around the ensemble, and one compact low-profile stand to capture drums or speakers close to the floor."}
{"candidate_id": "dev-32f16d4df2b2557ad8f5719f", "partition": "agent_dev", "positive_items": ["B01DNC1EEW", "B00VSYN25M", "B0BPJ4Q6FJ", "B07NSWD8BR"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a small live slide-guitar performance and need a bright high-strung six-string setup, smooth slide control, reliable connection to my amplification, and an adjustable way to elevate the PA speaker for the audience."}
{"candidate_id": "dev-33001eb5da5af31b1f63f0a3", "partition": "agent_dev", "positive_items": ["B074WXM13T", "B07KDSZ2TJ", "B0C4XQ496G"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a small acoustic performance and need comfortable guitar support plus a secure way to hold a wireless vocal microphone at adjustable floor height for rehearsal or playing."}
{"candidate_id": "dev-330a143113860eaef243c43c", "partition": "agent_dev", "positive_items": ["B01M12WWNX", "B00TZH5DJW", "B07MZYNZ1C"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a portable 76-key keyboard rig for rehearsals and small gigs, needing a stable adjustable stand, a comfortable height-adjustable seat, and padded carrying protection."}
{"candidate_id": "dev-3325ba7963cc38fc5aeca014", "partition": "agent_dev", "positive_items": ["B0BT862N4P", "B086KVBNNZ", "B018FCZKR2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a beginner-friendly home electric guitar practice corner and need a versatile instrument, a compact amp for clean and driven tones, and a safe foldable stand."}
{"candidate_id": "dev-3364bed40568141ad9d62bc5", "partition": "agent_dev", "positive_items": ["B09YDBKT7M", "B08BW2TBD7", "B0BPLFP5P6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my guitar ready for regular practice and small gigs, so I need an easy way to clean the strings, keep the instrument safely supported, and tune it accurately."}
{"candidate_id": "dev-3382dd888b026a23c99699cc", "partition": "agent_dev", "positive_items": ["B09M7P8SBH", "B0775CBC5R", "B077K4XLNH"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing a Fender- or Gibson-style electric guitar and need to check the neck, accurately route a humbucker cavity, then finish the setup with fresh light-gauge strings."}
{"candidate_id": "dev-3393379fe6a6d554efcb5c61", "partition": "agent_dev", "positive_items": ["B00O5EL4MA", "B01DYPOBTS", "B06Y17CPDF"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m organizing a small karaoke performance and need a simple setup with elevated stage lighting, two cordless vocal microphones, and reliable balanced connections to my powered speakers."}
{"candidate_id": "dev-339f2dcdedc88bfb69462878", "partition": "agent_dev", "positive_items": ["B06XDBGL88", "B00N4ZJS56", "B0B949FD92"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my small violin for lessons and rehearsals and need a compatible replacement D string, rosin for responsive bowing, and a portable stand for holding sheet music."}
{"candidate_id": "dev-33d5c8ce49b4997c7e7a931f", "partition": "agent_dev", "positive_items": ["B0B52FBC66", "B01DN7OI40", "B0846J7THY"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live vocal performance and need a handheld vocal mic on an adjustable stand, reliable XLR connections, and a way to split the microphone signal between two mixer channels."}
{"candidate_id": "dev-33d69a0d42f90c5041a76c45", "partition": "agent_dev", "positive_items": ["B0BPLFP5P6", "B098PL3ZF4", "B00LYFFW9O", "B0179A4ILK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring an electric guitar and putting together a compact rehearsal setup, with reliable strap security, easy tuning, renewed pickup switching, and a speaker-ready cabinet for the rig."}
{"candidate_id": "dev-341b3d1f1caed49dc1d7765a", "partition": "agent_dev", "positive_items": ["B017NT392Q", "B07MZYNZ1C", "B003ZHVCSY"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a comfortable bongo performance and practice station at home, with dependable drums, adjustable microphone placement, and a padded seat that lets me play comfortably for longer sessions."}
{"candidate_id": "dev-3435059b2fc23e4d0f6a9854", "partition": "agent_dev", "positive_items": ["B078KX8YJD", "B01EK9KS3A", "B01KPTR5A8"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my 10-inch tom ready for rehearsals and gigs, with a deep, short rock tone, organized stick storage, and protected carrying for my drum-tuning gauge and calibration accessories."}
{"candidate_id": "dev-34412e343c6a8bc6149a3af3", "partition": "agent_dev", "positive_items": ["B0B4SGJRHR", "B00T3G0F5C", "B07R1Y5MM5"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m preparing my tenor sax for rehearsals and need comfortable support, fresh strength-2 reeds, and replacement cork to keep the neck sealed and playing reliably."}
{"candidate_id": "dev-345c2e727e76cb3b2f11c1b1", "partition": "agent_dev", "positive_items": ["B098PJL986", "B01MY4GGC6", "B0BH49Q6ZS", "B07GFH8NTB", "B0027V760M"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live acoustic-guitar recording and rehearsal rig. I need fresh coated strings, a DI for sending the guitar cleanly to the mixer, a long multichannel stage snake, color-coded XLR patch cables, and wired in-ear monitoring."}
{"candidate_id": "dev-34be283734e3d4422d43f66f", "partition": "agent_dev", "positive_items": ["B00RM4REH4", "B0B59363YK", "B08V9YL6MY", "B07JDCMY2C", "B0002E51C6"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a small live-band setup for a venue gig and need clear vocal and drum sound, elevated PA coverage, reliable feedback control, and wireless personal monitoring for the performers."}
{"candidate_id": "dev-34e696eaa68fccf27567a9af", "partition": "agent_dev", "positive_items": ["B0BR2K9VF7", "B000AXQHK4", "B071F9L3GY"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a small ensemble performance and need accessories to improve the tone and playability of both clarinet and tenor saxophone, plus a simple handheld percussion element for keeping the rhythm lively."}
{"candidate_id": "dev-352c0ed64971204a2ffd754d", "partition": "agent_dev", "positive_items": ["B00V8URXSS", "B003NZ9H26", "B00FXBU85S"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a compact live guitar-and-percussion setup and need textured shaker sounds, reliable instrument reinforcement, and a space-saving way to keep my scores or set list on the mic stand."}
{"candidate_id": "dev-35529158abc35daf08cdc5cf", "partition": "agent_dev", "positive_items": ["B09V91H5XM", "B008Y90Q62", "B097Q9W8MW", "B0C5BMZ1K9", "B001W99HE8", "B07PPHHG34", "B01KDK4V6K"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home electric-guitar practice and recording station with safe storage and transport, a comfortable playing strap, crunchy amp tones through a suitable speaker, close-miking for guitar, and a desk-mounted vocal and monitoring setup."}
{"candidate_id": "dev-357fcf3e8608e24226f34824", "partition": "agent_dev", "positive_items": ["B00HJOTPX8", "B0002L527I", "B07P13LBR6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m outfitting a portable percussion setup for gigs and need secure height-adjustable support for two congas, better projection by lifting them off the floor, and padded cajon storage that’s easy to carry."}
{"candidate_id": "dev-35844b07f1dc79957f7a009a", "partition": "agent_dev", "positive_items": ["B008R2WVJG", "B01JUMTWJI", "B00BMFNFP4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact podcast recording setup for my desk and occasional travel, with a stable microphone holder, a suitable cable for connecting the mic to recording gear, and protective storage for the equipment."}
{"candidate_id": "dev-35bd9c5f038e85a258f9e0b5", "partition": "agent_dev", "positive_items": ["B0BSGM6CQ9", "B0BFL6W356", "B0BT84L827"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a beginner-friendly electric guitar rig for practicing and playing rock at home, with a versatile solid-body guitar, a powerful amp for rehearsals or small gigs, and durable heavier-gauge strings."}
{"candidate_id": "dev-35c6531033177999d774f31f", "partition": "agent_dev", "positive_items": ["B01CUZ857W", "B096K2LZKH", "B004O07XR0", "B0983TPW81"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a compact guitar performance and composing setup with an easy-to-access raised pedalboard, versatile phase effects, wireless connection to my iPad or Mac, and secure strap hardware for playing safely."}
{"candidate_id": "dev-35cac256549b3b118b268f5b", "partition": "agent_dev", "positive_items": ["B0002ZPK0S", "B06XF4H9NL", "B000H38YFI"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refurbishing my DJ turntable setup for Serato scratching and need a compatible replacement stylus, a way to connect an XLR output to a 1/4-inch input, and control vinyl for accurate needle drops."}
{"candidate_id": "dev-35cbbdc00fe979e88a299a69", "partition": "agent_dev", "positive_items": ["B01MYMU0ZI", "B001M5NQD0", "B0BK6S85WX", "B07MHR1CQB", "B07B4ZZVDV", "B0B4SGJRHR"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a practical practice and maintenance setup for my alto and tenor saxophones, with comfortable playing support, reliable tenor mouthpiece accessories, properly fitting alto hardware, and lint-free cleaning tools to keep both instruments ready for regular rehearsals."}
{"candidate_id": "dev-35df05792f5e34c220318df1", "partition": "agent_dev", "positive_items": ["B086543FTN", "B00NP8GYVS", "0825603285"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a woodland-themed folk performance and need a tunable melody instrument, a convincing frog-like percussive accent, and a controllable scraping-and-shaking rhythm texture for the ensemble."}
{"candidate_id": "dev-35e1fbbd189295c1070a5512", "partition": "agent_dev", "positive_items": ["B07T3GZVMD", "B001NIC51A", "B001DEWJGU"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable setup for practicing and playing an electric guitar, with a vibrato upgrade for an arch-top or solid-body instrument, battery-powered amplification, and adjustable foot support for comfortable seated playing."}
{"candidate_id": "dev-35f657e0a9d594d3352b5074", "partition": "agent_dev", "positive_items": ["B07CYRYQ8G", "B0B5841ZZF", "B06X9KG3HW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small podcast and live-stream recording station with a boom-mounted vocal mic, private headphone monitoring, multiple XLR inputs, and dependable balanced cables for connecting everything cleanly."}
{"candidate_id": "dev-360d5de0c14b19f5bb3ebc0b", "partition": "agent_dev", "positive_items": ["B0BSGM6CQ9", "B0002KZEAE", "B0B9TBDBRJ"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m restoring an older electric guitar and want to replace its worn tuning hardware and control component, then restring it with a heavier-gauge nickel set for stable tuning and a firmer playing feel."}
{"candidate_id": "dev-36215f8f4819d73325d8b5b2", "partition": "agent_dev", "positive_items": ["B07C5RMKBF", "B00IPH8MD2", "B08BW2TBD7"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m getting my acoustic guitar ready for casual practice and need nylon strings, varied picks to explore different playing feels, and a stable stand for storage between sessions."}
{"candidate_id": "dev-366303e94007a0dd62af5cf9", "partition": "agent_dev", "positive_items": ["B098KXQJVY", "B07GFH8NTB", "B0BPKTYTPQ"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m preparing my acoustic and seven-string electric guitars for a recording project and need long-lasting strings for both, plus a maintenance-free case system that keeps the instruments at stable humidity year-round."}
{"candidate_id": "dev-367fc2d26f2ceb72dfc1003a", "partition": "agent_dev", "positive_items": ["B00ATPD9T0", "B0BKZ61YJJ", "B00CIO6BEA", "B0BXT384GR", "B016QUXTZU", "B0002BACAA"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home studio to rehearse and record a band demo, with clearer vocals, focused kick-drum capture, treated room acoustics, convenient guitar-pick access, and a realistic way to practice drums between sessions."}
{"candidate_id": "dev-36db27a2dda35a07c08e344f", "partition": "agent_dev", "positive_items": ["B07C7M4DST", "B0B81D5BB4", "B08RXRQFRJ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring a Strat-style electric guitar by replacing its worn faceplate, tuning system, and output-jack hardware. Please help me find compatible parts for an 11-hole SSS layout, 10mm tuner openings, and a chrome jack finish."}
{"candidate_id": "dev-36dfa69ed3843219568b5a5c", "partition": "agent_dev", "positive_items": ["B06X9KG3HW", "B0C5BMZ1K9", "B09RN7GR8F"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a home podcast and streaming station where I can mount a vocal microphone at my desk, monitor recordings with headphones, and connect multiple XLR sources through a USB interface for clear, flexible audio production."}
{"candidate_id": "dev-37277e22b4703e969c2bb89c", "partition": "agent_dev", "positive_items": ["B01LSHMR86", "B00O5UBK5U", "B06ZZ3YR46"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m putting together a small live guitar setup and need reliable stage monitoring, power for several effects pedals, and short balanced XLR connections for routing the audio cleanly."}
{"candidate_id": "dev-37437ece79c4060c96ec58fe", "partition": "agent_dev", "positive_items": ["B091MZPYBQ", "B017DNZ3XK", "B095JX9GZY"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home music performance space and need a stable adjustable support for my keyboard, protection from dust between sessions, and a windscreen to keep a handheld vocal mic clear during singing."}
{"candidate_id": "dev-3761786a16914488b49f96a4", "partition": "agent_dev", "positive_items": ["B003B1RBXY", "B0002F59ZY", "B0BXPSYWVM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home practice corner for my flugelhorn and clarinet, with secure floor supports for both instruments and valve oil to keep the flugelhorn ready to play."}
{"candidate_id": "dev-378e7cc70998bf0dd60af3f6", "partition": "agent_dev", "positive_items": ["B0861QRRWW", "B06Y6BCX7B", "B07N5J3GTB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact karaoke setup for home performances and need a dynamic vocal microphone, a long balanced XLR connection, and a flexible threaded mount for positioning it on a stand."}
{"candidate_id": "dev-37c47c3fc7a28f6bb37c72cf", "partition": "agent_dev", "positive_items": ["B003VYBNHG", "B08DBDD6CM", "B07C91JT14"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live vocal performance and need several dynamic mics, long XLR runs to the mixer, and a short angled patch connection for the signal chain."}
{"candidate_id": "dev-37d07208e9bf58c693223147", "partition": "agent_dev", "positive_items": ["B09617MLP2", "B0C5LYJXLR", "B073WND433", "B07C484BHP"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a small home studio to record a live rock session, with stereo overheads for drums, a close mic on the guitar cabinet, and balanced connections to my mixer, including a way to join two female XLR ends when needed."}
{"candidate_id": "dev-37dbf13fc6e6043fb84f08fe", "partition": "agent_dev", "positive_items": ["B0BT3B7GTY", "B00TV90MT0", "B07GFH8NTB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m giving my acoustic guitar a full refresh and need a safe way to support the neck, polish grimy frets, and restring it with light phosphor-bronze strings."}
{"candidate_id": "dev-37e4ac6ee6aebdd7945f5844", "partition": "agent_dev", "positive_items": ["B09XSC5SMJ", "B0BFKKVQZT", "B000EEJGRK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home guitar corner and want to refresh my baritone electric’s low tuning and my acoustic’s bright tone, then mount one instrument securely on the wall. Please suggest compatible string sets and a safe, padded hanger for the setup."}
{"candidate_id": "dev-37f6e8b9c8066deb8f1040b1", "partition": "agent_dev", "positive_items": ["B001E95KHO", "B0BR2KL6QL", "B0C3PWFLWL", "B08R5GM6YB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live acoustic performance and need a stable adjustable platform for my keyboard, flexible microphone positioning, tools to restring my mandolin, and a non-destructive pickup so the mandolin can be amplified clearly."}
{"candidate_id": "dev-3815571bff09e56627dd7063", "partition": "agent_dev", "positive_items": ["B00UALWPCA", "B015JTEBN8", "B0BHSG5C3G"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home station to record tuned guitar and vocals, with clean computer audio input, hands-free mic positioning, and quick clip-on tuning before takes."}
{"candidate_id": "dev-384427d1354afdd8bb6059a6", "partition": "agent_dev", "positive_items": ["B0BWJBZSQH", "B07CNTRNWQ", "B079H5K22T"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m putting together a vocal practice and recording setup and need stable, height-adjustable microphone support with flexible positioning, plus a secure place to keep water nearby during sessions."}
{"candidate_id": "dev-3845610176024352e0574a2b", "partition": "agent_dev", "positive_items": ["B008O518A4", "B0010EJJVG", "B07NSWD8BR"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a small live music and announcement system and need powerful PA sound for playback, a stable height-adjustable speaker mount, and several dynamic microphones for performers and presenters."}
{"candidate_id": "dev-385d1deb470fe3aa910832ba", "partition": "agent_dev", "positive_items": ["B000RLF8P4", "B0BPKH4HB2", "B08W4BQJTS"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up for classical guitar practice and small amplified performances, looking for a suitable Grand Concert-style instrument, gentle light-tension strings for a warm response, and a reliable short connection lead."}
{"candidate_id": "dev-385e8d1389bae0f051838fa5", "partition": "agent_dev", "positive_items": ["B00DDVNNUM", "B0BT9R8MMV", "B017NT392Q", "B0B89ZSYS7", "B00LIW7N9U"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live band recording and need reliable vocal and kick-drum capture, stable mic placement, one cable run for multiple XLR channels to the mixer, and hands-free sustain control for the keyboard."}
{"candidate_id": "dev-389b6cb0e25746968fc4ac56", "partition": "agent_dev", "positive_items": ["B0928H9QXC", "B016QUXTZU", "B00LOAASPC", "B005OZE9SA"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact desk recording setup for voiceovers and sung demos, and need clear condenser-mic capture, reliable USB connection to my computer, stable positioning, and protection from harsh breath sounds."}
{"candidate_id": "dev-38d9a9bfaab08628547d0797", "partition": "agent_dev", "positive_items": ["B00MEM5TQC", "B01C5TBX68", "B007T8KI6M"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my electric guitar rig for gigs and need fresh light-gauge strings, a way to fine-tune my tone and cut muddiness, and a protective fitted case for transporting my amplifier head."}
{"candidate_id": "dev-38e19dcf138b4d774945eddd", "partition": "agent_dev", "positive_items": ["B01J50ODYE", "B0027V760M", "B074GXRXVR", "B07NKT1QQK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring an electric guitar for small gigs and need replacement hardware to improve its string alignment and bridge setup, plus a way to smooth the signal and send it cleanly to a mixer."}
{"candidate_id": "dev-38eb25fdb7e8a5b126174d9a", "partition": "agent_dev", "positive_items": ["B004ZKIHVU", "B001E95KEC", "B07FHDSPND"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m assembling a mobile acoustic gig setup and need a way to organize headphones and cables on my rolling gear cart, shape and send my pickup signal cleanly to the PA, and keep my pedals firmly secured."}
{"candidate_id": "dev-38f2d7e79b5c9ecddb472e08", "partition": "agent_dev", "positive_items": ["B09NWCD36N", "B01E6T56EA", "B08JMQR2JK", "B0BKZ1G3P3", "B007X60AZ4", "B0B2TND26L"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home rehearsal and recording space for guitar and drums, with durable replacement heads, guitar storage, assorted picks, short pedalboard connections, and a compact USB interface for capturing both instruments."}
{"candidate_id": "dev-38f485a2d1d449e459051715", "partition": "agent_dev", "positive_items": ["B07K3Z39NN", "B07X2LN548", "B00IPHSRN2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my electric guitar for regular metal practice and gigs, with a secure strap connection, precise picking control, and fresh light-gauge strings that stay bright and playable longer."}
{"candidate_id": "dev-390252015df5202d0e275436", "partition": "agent_dev", "positive_items": ["B0C5LYJXLR", "B000068O4E", "B01DK1ZGSQ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m wiring a small home recording setup and need adapters to connect balanced 1/4-inch gear to XLR inputs, join two female XLR connections, and accommodate balanced or unbalanced instrument cables."}
{"candidate_id": "dev-3987a60973c6d9074eb8f0f5", "partition": "agent_dev", "positive_items": ["B093YKLWVN", "B0BPJ4Q6FJ", "B0037BS73Q"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing my six-string electric guitar and need to clean the fretboard, restring it for a bright Nashville-style setup, and replace the worn control knobs with black speed knobs."}
{"candidate_id": "dev-398ba3b51004c8697f28b5b9", "partition": "agent_dev", "positive_items": ["B0B8M2Q1DS", "B01K1EJQ9U", "B08R5GM6YB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my guitar ready for regular playing and need an easy way to restring it, keep picks accessible, and wear it comfortably while standing."}
{"candidate_id": "dev-399c56c3a8df278a5ebb3d39", "partition": "agent_dev", "positive_items": ["B00NARHNCS", "B0BSGM6CQ9", "B07X2LN548", "B077GK1J7N"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my electric guitar for a heavier rock practice and recording session, with fresh heavier-gauge strings, precise action setup, jazz-style picks, and an expressive wah sound."}
{"candidate_id": "dev-39c7d58c34258aa320f4d073", "partition": "agent_dev", "positive_items": ["B003AYJ3EC", "B0009A37XI", "B0002F5GXY"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a Latin percussion setup for rehearsals and small performances, with traditional wood bongos and a dedicated bongo bag with pouch, plus a pair of wood congas that can be played on their included stand."}
{"candidate_id": "dev-39f266d4526a170a41370148", "partition": "agent_dev", "positive_items": ["B07FS8N773", "B07S8WV992", "B083BTQWHQ", "B00ABLI0IC"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing my six-string electric guitar and want to improve tuning stability, replace the crowded front electronics assembly, and complete a careful setup covering string spacing, nut work, fret leveling, and precise action adjustment."}
{"candidate_id": "dev-3a12cb4b4762dfd28c1a3839", "partition": "agent_dev", "positive_items": ["B084Q616NK", "B07F19P3CV", "B07BSKJB97"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing my electric guitar and want a matching white humbucker setup for the bridge and neck, plus durable replacement locking and saddle screws for its Floyd Rose-style tremolo."}
{"candidate_id": "dev-3a820e02f7fd7485f190ffcc", "partition": "agent_dev", "positive_items": ["B009P6GTXC", "B006M01WFE", "B000CCN15M"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing my bass for a home recording session and need fresh, punchy strings plus a way to send its instrument signal cleanly through the studio input with convincing amp-like tone."}
{"candidate_id": "dev-3b40a0195c8feb0bd44339bf", "partition": "agent_dev", "positive_items": ["B07WW5PKCP", "B091YFQGCJ", "B07CRK35NG"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home guitar station and need to freshen the instruments, replace a broken string, and store several guitars safely while keeping them accessible."}
{"candidate_id": "dev-3b7a82a8a8b5d57f2936dcee", "partition": "agent_dev", "positive_items": ["B000CCSWPQ", "B093T2PPWQ", "B07N5J3GTB"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a small acoustic performance and need clear vocal pickup, a way to match an instrument’s signal into the mixer, and patch connections for routing channels through outboard gear."}
{"candidate_id": "dev-3bca737ae11baaed416f87da", "partition": "agent_dev", "positive_items": ["B07VV9G362", "B01N1K8SR5", "B0BKR2ZM9X"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m upgrading my standard Tele-style electric guitar for gigs: I need a replacement pickguard, locking tuners for dependable tuning, and a compact powered setup to organize and transport my effects pedals."}
{"candidate_id": "dev-3bd1d208099c8a7230638575", "partition": "agent_dev", "positive_items": ["B071F9L3GY", "B00SW15C9S", "B0002D0A8M", "B019XT60PW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for a woodwind ensemble performance where I’ll rotate between alto sax, tenor sax, and Bb clarinet, and need suitable reeds for each instrument plus a clarinet ligature for a full, centered tone."}
{"candidate_id": "dev-3bda101c4aacd55d63ce926d", "partition": "agent_dev", "positive_items": ["B00Y459UIU", "B0BFKQGWZ7", "B07C5RMKBF", "B09G5QS1VD"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I'm outfitting a small guitar teaching studio and need replacement strings for electric, steel-string acoustic, and nylon-string guitars, plus a space-saving wall display to safely organize several instruments between lessons."}
{"candidate_id": "dev-3bdf68c19369ff1ec46c92e0", "partition": "agent_dev", "positive_items": ["B001V5K2S8", "B0951C4RGR", "B07DMS2QNL"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m starting to learn soprano ukulele and need a warm-sounding instrument, gentle reusable picks for practice, and protective carrying gear for lessons and casual jam sessions."}
{"candidate_id": "dev-3c163a5acf64852786fb7252", "partition": "agent_dev", "positive_items": ["B001W99HE8", "B00NPAMDQ6", "B07XP6MHQT", "B015JTEBN8"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a small acoustic-guitar performance setup and need a secure hands-free strap, picks for playing, a height-adjustable stand, a directional mic for guitar and vocals, and long balanced cables to reach my mixer."}
{"candidate_id": "dev-3c16bf2d38456bd1a5ee0ed2", "partition": "agent_dev", "positive_items": ["B072HZ2GL8", "B07SGPV7QM", "B01HYBC6P4", "B07RNWTNM5"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring a Les Paul-style guitar and need locking tuning hardware with adapters for its modern headstock, plus parts to refresh the tone circuit and install a dependable mono 1/4-inch output connection."}
{"candidate_id": "dev-3c26574e0c45bd0973d4e34e", "partition": "agent_dev", "positive_items": ["B0BSGM6CQ9", "B08R5GM6YB", "B08JMQR2JK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small guitar rehearsal space and need secure stands for several instruments, heavier-gauge replacement strings, and a compact tool for quickly restringing and maintaining them."}
{"candidate_id": "dev-3c4f4e97b56457bf127f1195", "partition": "agent_dev", "positive_items": ["B0BK6MRC3B", "B08T2N1WZR", "B09MZ14XJ1"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for a guitar performance and need a setup that keeps my instrument reliably in tune, provides amplified sound with reverb, and lets me read sheet music hands-free during rehearsal."}
{"candidate_id": "dev-3c63e730dfa5611d5548763a", "partition": "agent_dev", "positive_items": ["B000JM9ZEG", "B0002GYX78", "B0136KXTEE"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restringing my electric and acoustic guitars plus a five-string banjo for a bluegrass session, needing .013 plain electric replacements, a warm 012–056 acoustic set, and 9–20 bronze banjo strings."}
{"candidate_id": "dev-3c66eee975a4d280b1df3a09", "partition": "agent_dev", "positive_items": ["B0B5GYKM5Z", "B00MEN6I6Q", "B073QGWQBW"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m refurbishing a four-string Jazz Bass and need compatible hardware to secure the neck, install replacement neck and bridge pickups, and cleanly trim the frets for a professional setup."}
{"candidate_id": "dev-3c8c6de5170088a98112feb8", "partition": "agent_dev", "positive_items": ["B004WQOFBI", "B004O07XR0", "B076DNQXGJ", "B0919BN3QJ", "B01DL6E762", "B002LFCDPM", "B08CSQNMN5"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable acoustic singer-songwriter rig for small live shows and rehearsals, with fuller guitar sustain, polished guitar and vocal sound, flexible mixing and USB recording, compression, easy pedal access, and protected transport for the rack gear."}
{"candidate_id": "dev-3cb79a93b74591f52e0dce64", "partition": "agent_dev", "positive_items": ["B07YK57N2M", "B09V91H5XM", "B08DM9NFLH", "B0BSGM6CQ9"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up my electric guitar for home practice and recording: I need heavier-gauge strings, a comfortable adjustable strap, a safe wall display, and a protective way to store my fret and action-measuring tool."}
{"candidate_id": "dev-3d058e8b1fffb514800cdc68", "partition": "agent_dev", "positive_items": ["B000EEJDC8", "B00WE6INNY", "B0BPJ4Q6FJ"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m recording a blues-rock demo and need an acoustic-electric bass for the low end, a C major harmonica for melodic fills, and high-strung electric-guitar strings for a doubled Nashville-tuning texture."}
{"candidate_id": "dev-3d9bcacc900083f7431783c6", "partition": "agent_dev", "positive_items": ["B0BG95DG2H", "B074WXM13T", "B00H4PEMM6", "B07XZP8SR1"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for a guitar performance and need an easy way to tune by ear, change keys quickly, keep the instrument supported while standing, and have plenty of reliable picks for playing."}
{"candidate_id": "dev-3de0e400bb4e5e0435ccaf74", "partition": "agent_dev", "positive_items": ["B00P0AHJZY", "B07JQNPLKD", "B00OQ1WFCA"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m getting my alto sax ready for regular practice and need suitable reeds, a complete mouthpiece setup, and a comfortable neck strap so I can play securely and comfortably."}
{"candidate_id": "dev-3df307116da04e93e8454344", "partition": "agent_dev", "positive_items": ["B07C91JT14", "B017NT392Q", "B07PSWC1XY"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small vocal recording session and need multiple dynamic mics, a stable adjustable boom stand, and plosive protection for clean takes."}
{"candidate_id": "dev-3e0f85630a6d8a0fed7f1346", "partition": "agent_dev", "positive_items": ["B0BK5CXZBT", "B0928HW2P4", "B098KXQJVY"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m giving my 7-string electric guitar a full refresh and need supplies to gently clean the finish, condition its wooden fretboard, and install fresh light-gauge strings with longer-lasting tone."}
{"candidate_id": "dev-3e422b10310fe3fff2e15d60", "partition": "agent_dev", "positive_items": ["B004FEBS8K", "B0014598WQ", "B0002DV0CW"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m putting together a compact home guitar recording rack and need to route my signal through a swirling phase effect, keep the rack ventilated, and safely power and illuminate the equipment."}
{"candidate_id": "dev-3e7095501dd66cdf429b5d0a", "partition": "agent_dev", "positive_items": ["B09V91H5XM", "B07XP6MHQT", "B00CPLODUU"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up my six-string acoustic guitar for casual gigs, with comfortable hands-free support, quick detachment, easy key changes, and picks for playing."}
{"candidate_id": "dev-3e72d1e2d2f005de327f2a01", "partition": "agent_dev", "positive_items": ["B0C5PRQ9K6", "B0BSGM6CQ9", "B013IIASS4", "B0002FDKIW", "B0036E8DE2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I'm preparing a small live music show and need to restring the electric guitar, mix several microphones and instruments with effects, enhance the overall sound, and connect the mixer to a powerful stereo PA over a long speaker run."}
{"candidate_id": "dev-3eee84b53bc14d0e2f7a1879", "partition": "agent_dev", "positive_items": ["B09ZTH5MDP", "B097Q9W8MW", "B08HVGW1W5"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable electric-guitar recording setup and need replacement control caps, a USB-enabled studio monitoring hub, and sturdy protection for transporting the instrument."}
{"candidate_id": "dev-3ef335a16bca6cd103e26d2f", "partition": "agent_dev", "positive_items": ["B08FQN1X2H", "B0017W4HOU", "B089GLLS7D", "B07593G916", "B07QL29XXZ", "B07RQ67ZFT"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring an electric guitar and want to do a complete setup: shape and fit a replacement nut, file the string slots accurately, level the fingerboard and frets to its radius, polish the fret surfaces, adjust string action, and replace the control knobs with metric split-shaft versions."}
{"candidate_id": "dev-3efc65a430499e34802a76c9", "partition": "agent_dev", "positive_items": ["B098CWTVVC", "B0085545YO", "B0BJ3BBTXH"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m upgrading and restringing my Floyd Rose electric guitar, and need to install a solid brass tremolo block, wind the new strings quickly, and stretch them into tune."}
{"candidate_id": "dev-3f0956a9f4fd27ef351a34ed", "partition": "agent_dev", "positive_items": ["B00PZGTVAE", "B004FEBS8K", "B011SQ5TNW"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m building a compact electric guitar pedalboard and need to tame unwanted noise, add swirling phase tones, and connect the effects neatly with short patch cables."}
{"candidate_id": "dev-3f2003d7c3a3d77502b683da", "partition": "agent_dev", "positive_items": ["B0B95V41NR", "B088DD5M4V", "B08BW2TBD7", "B0BRSK33BC", "B000Q847M8"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact electric-guitar blues and folk practice rig and need secure stand storage, harmonicas in G and E, a short patch connection for my setup, and a longer lead to reach the amplifier."}
{"candidate_id": "dev-3f5f68382e74a27fcd68ce4e", "partition": "agent_dev", "positive_items": ["B0BGQG84Y4", "B074WXM13T", "B0BKZ3GCGR"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m starting electric guitar practice and need a beginner-friendly solid-body setup, a comfortable way to wear the instrument, and reliable picks for playing."}
{"candidate_id": "dev-3f9203a4030dba0ec85dc16f", "partition": "agent_dev", "positive_items": ["B0B8LK7MTH", "B007MY5BDI", "B0BZJNPDJS"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my six-string acoustic for regular practice and casual performances, and need everything to restring it, keep it in tune, switch chords quickly, and play comfortably hands-free."}
{"candidate_id": "dev-3fb137c1fe5ec40a221af2e2", "partition": "agent_dev", "positive_items": ["B00S5WRW6U", "B06Y6BCX7B", "B01KMWABQS", "B0C3PTB4JC", "B07J4Y1XZ3"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a small live guitar performance and want a punchy overdriven tone, music-reactive colored lighting, flexible microphone positioning, and convenient access to spare picks and a slide from the mic stand."}
{"candidate_id": "dev-3fc9326ca2ed3ac95c658f49", "partition": "agent_dev", "positive_items": ["B0002GJHYM", "B07MCDJ3PY", "B088GF12PC"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a compact tabletop voice-recording station and need flexible desk-mounted mic positioning, vibration isolation for a 60 mm microphone, and compatibility between standard boom accessories and my European-thread stand."}
{"candidate_id": "dev-400c5bffd998ff1f08f0083c", "partition": "agent_dev", "positive_items": ["B08BW2TBD7", "B01DE4DPSC", "B00H4PEMM6", "B01K1EJQ9U"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a portable setup for practicing and playing guitar, with quick key changes, picks kept within reach, a safe place to rest the instrument between songs, and a reliable connection to my amp."}
{"candidate_id": "dev-4021733b690923fd78b46d7d", "partition": "agent_dev", "positive_items": ["B07NKMZJ5M", "B001AWUVX8", "B0C9NGP88D"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my electric guitar and tube amp ready for rehearsal and need to restring and accurately tune the guitar while replacing the preamp tube with a high-gain option."}
{"candidate_id": "dev-405086600742aed2efae10c9", "partition": "agent_dev", "positive_items": ["B0BKZ3GCGR", "B01K1EJQ9U", "B01DE4DPSC", "B078KTV8L4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home guitar practice station and need supplies to protect my acoustic instrument from dry air, keep picks handy, and connect my electric guitar to an amplifier."}
{"candidate_id": "dev-4066cdd4340027c2e043895d", "partition": "agent_dev", "positive_items": ["B01NAHVI01", "B086DPZ9GG", "B0BLLXXT6F"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up lighting and sound for a small live performance and need to wirelessly coordinate multiple stage lights, mount them securely, and connect a bodypack microphone to the audio system."}
{"candidate_id": "dev-40948e61ac7f2807cfe0d78f", "partition": "agent_dev", "positive_items": ["B00W3EI24M", "B0928H6VZX", "B0049B3ZQ2"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I want to personalize my guitar with removable fretboard-style inlay accents and bold graphics, while adding smoother sustain and balanced dynamics for expressive playing and practice."}
{"candidate_id": "dev-409a40a86e5809a55f4dc4ab", "partition": "agent_dev", "positive_items": ["B0002GO8NM", "B07NKMVH6P", "B09G7GH2FH"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m preparing my drum kit for rehearsals and small gigs and need a way to protect it between sessions, improve visibility on dim music stands, and control unwanted overtones for a cleaner sound."}
{"candidate_id": "dev-40af57022e7c0e4054b3ac2c", "partition": "agent_dev", "positive_items": ["B0002E2SCW", "B0BKZ4RCV3", "B0BKZ6M28F"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m tuning my bass drum setup for double-pedal practice and want to control resonance, protect the batter head from repeated kicks, and make my sticks more comfortable and secure during long rehearsals."}
{"candidate_id": "dev-40c13206ea97193bc13674f7", "partition": "agent_dev", "positive_items": ["B0BVMBCW9R", "B0002F6VU6", "B0BSZ126SP", "B0BKZ6M28F", "B00AHAFMCO"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a compact drum kit for rehearsals and small gigs, and need reliable bass-drum control with head protection, secure snare support, a padded way to carry a tom, and a tool for quick tuning adjustments."}
{"candidate_id": "dev-40d8c7c5c67e74cc7ac0ccf5", "partition": "agent_dev", "positive_items": ["B0007YPNHO", "B0002F7J5M", "B0002F6VYC", "B0002F7J1Q", "B0BXT41VYY", "B06Y6BCX7B", "B07CQQXQ4T"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a warm, vintage-sounding drum kit for home recording and need compatible replacement heads across the kit, flexible and clamp-on microphone mounting, plus filtered surge-protected power for the recording setup."}
{"candidate_id": "dev-40e5b843990722dcd0dadf31", "partition": "agent_dev", "positive_items": ["B07RMKT3YJ", "B07CLH687R", "B075PY3QNP"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my electric guitar setup for a live set and need light-gauge strings, versatile overdrive or boost for solos, and an expressive delay with foot-controlled effects for spacious textures."}
{"candidate_id": "dev-41681a4f51079b3d2ed05781", "partition": "agent_dev", "positive_items": ["B00VMB7E0U", "B07J5FVQNT", "B08LRLRRKM"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a comfortable guitar practice corner where I can sit and keep my instrument supported, protected from dry air, and looking clean between sessions."}
{"candidate_id": "dev-416f78d0087a60f57f6edbfb", "partition": "agent_dev", "positive_items": ["B09TBB276B", "B086QN18MT", "B01AA6BNCC"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a solo Hawaiian-style guitar setup for practicing and performing, with articulate picking and strumming, expressive steel-slide playing, and layered rhythm loops with song sections and fills."}
{"candidate_id": "dev-4186b44dc9849f416bb867a2", "partition": "agent_dev", "positive_items": ["B01HSVV6GA", "B001OICJCE", "B0B2ZTFJNY"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refreshing my Precision Bass for comfortable playing and a vintage-inspired look, with better shoulder support, a stable thumb position near the pickups, and a chrome cover for the bridge pickup area."}
{"candidate_id": "dev-4197e65cdb9ab7024840bc06", "partition": "agent_dev", "positive_items": ["B01LW96EM8", "B0BSGM6CQ9", "B0BT3B7GTY", "B0928HW2P4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m giving my bolt-on electric guitar a full setup: clean and polish the frets, condition the fretboard, install heavier-gauge strings, and correct the neck angle for comfortable playability and smooth bending."}
{"candidate_id": "dev-41a621cf6d1630dcea52d3b7", "partition": "agent_dev", "positive_items": ["B000B9W3I2", "B07RLVH6H4", "B081PLG1T1"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring an Epiphone Les Paul or SG-style electric guitar and need a gold adjustable wraparound bridge with secure locking mounting posts, plus reliable three-per-side tuners to improve intonation, stability, and playability."}
{"candidate_id": "dev-41d9c02dcaabb329d0aa6e0f", "partition": "agent_dev", "positive_items": ["B07R3S93K8", "B0070Z8190", "B01DE4DEGK"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a home guitar rehearsal and recording corner where I can safely wall-hang several electric and bass guitars, then connect my instruments and audio gear with reliable balanced 1/4-inch patch cables."}
{"candidate_id": "dev-41ee61454b35147fad0e86c6", "partition": "agent_dev", "positive_items": ["B07K7VC41S", "B08JMQR2JK", "B0C9NGP88D"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for a small acoustic music performance and need to keep my instrument secure while playing, tune quickly in changing conditions, and safely store several guitars or similar instruments between sets."}
{"candidate_id": "dev-422d5ae77e3dd6dd2546c251", "partition": "agent_dev", "positive_items": ["B016QUXTZU", "B07N5J3GTB", "B005EHILV4", "B00LIW74US"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I want to set up a simple home vocal-recording station for singing and spoken audio, with clear plosive control, reliable microphone connection, and USB mixing into my computer."}
{"candidate_id": "dev-422f4814d465c69199117d78", "partition": "agent_dev", "positive_items": ["B0831XFXSW", "B07CZX5H3B", "B0787G8MRJ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home piano performance and recording station with an authentic 88-key stage piano, stable adjustable support, and accurate powered monitors for mixing and playback."}
{"candidate_id": "dev-426634bfb6e895b3071849dc", "partition": "agent_dev", "positive_items": ["B078WLKYZZ", "B0BKK8N4HQ", "B07GBPF914", "B0BHSG5C3G"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m restoring my six-string acoustic guitar and want to replace the worn nut and saddle, install durable fresh strings, speed up restringing, and accurately tune the finished setup."}
{"candidate_id": "dev-42b6e923222f031f947a4d00", "partition": "agent_dev", "positive_items": ["B075VLV5BR", "B0C3X55VNZ", "B072MP6KH4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a bass rig for rehearsals and performances, with octave effects that let me shape the midrange, a dependable low-noise connection, and a comfortable, durable way to keep the instrument supported."}
{"candidate_id": "dev-42c12c5bd5bc19900b43a07f", "partition": "agent_dev", "positive_items": ["B003766KSA", "B00MXUJ394", "B0951C4RGR"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m starting ukulele lessons and want a beginner-friendly instrument, replacement strings, and gentle picks for practicing chords and strumming at home."}
{"candidate_id": "dev-42d0bd64811c09c84027b9aa", "partition": "agent_dev", "positive_items": ["B002CMVPQW", "B003DJGQ76", "B07BQRDVYJ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for standing alto or tenor saxophone practice and performances, so I need a way to keep the neck clean, maintain steady timing, and hold the instrument securely between playing."}
{"candidate_id": "dev-42d9d66c34e338caaa9a384b", "partition": "agent_dev", "positive_items": ["B0CB98SMQR", "B005OZE9SA", "B0B3LLNVNC"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a compact home studio to mic amplified guitar or percussion, record it cleanly over USB, and add keyboard parts and arrangements from a MIDI controller."}
{"candidate_id": "dev-42e8778904f94777983a6ade", "partition": "agent_dev", "positive_items": ["B07MQK9168", "B000KIPTE4", "B00N4QF1F6"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m building a compact electric-guitar pedalboard for rehearsals and small gigs, with warm tube-style overdrive, swirling phase effects, and short reliable patch connections between the pedals and amplifier."}
{"candidate_id": "dev-4317839fbc8502906a00c7f1", "partition": "agent_dev", "positive_items": ["B08XMGNB3W", "B09NWCD36N", "B0BKZ5F8BS"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a groove-driven home recording and need a drum-machine foundation, fresh flatwound strings for my five-string bass, and a range of pick gauges to find the right attack for guitar parts."}
{"candidate_id": "dev-4326a7c83fb32e801164ff1c", "partition": "agent_dev", "positive_items": ["B017NT392Q", "B0002NYKLU", "B019JX565C", "B07PSWC1XY"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home vocal recording station for a polished demo and need a warm-sounding condenser microphone, plosive control, secure shock isolation, and a stable adjustable boom stand for precise placement."}
{"candidate_id": "dev-43567de95633a04a7d5db3d1", "partition": "agent_dev", "positive_items": ["B00UBGYBTO", "B0158E92BK", "B0B9JZP4BQ"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m upgrading my electronic drum setup for practice and performance, with a quiet, durable cymbal surface, responsive hi-hat control for open-to-closed techniques, and dependable sticks with a little extra punch."}
{"candidate_id": "dev-435fc24c5aa2615a86a312d6", "partition": "agent_dev", "positive_items": ["B08DBDD6CM", "B003GEBGA0", "B00M9BSZMI", "B07226MCY6", "B00IPH8MD2"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m preparing for a small live acoustic guitar-and-vocal performance and need a dependable setup for singing, connecting my instrument, playing comfortably, and trying different picks during rehearsal."}
{"candidate_id": "dev-436fb7d2665a2f9613db6963", "partition": "agent_dev", "positive_items": ["B09VSJD5GP", "B0179A4ILK", "B09BTNM918"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a comfortable, reliable rig for solo guitar-and-vocal performances, with a secure hands-free instrument setup and an adjustable floor-mounted microphone position that works for rehearsals and small stages."}
{"candidate_id": "dev-4375f5a6545ae08d2f7fab66", "partition": "agent_dev", "positive_items": ["B01K1EJQ9U", "B08JMQR2JK", "B0BKZ3GCGR", "B074WXM13T"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small guitar rehearsal and performance area and need a comfortable way to play standing, keep spare picks within reach, and safely support several guitars between sessions."}
{"candidate_id": "dev-437f78bf0b8d4bfd0a64a490", "partition": "agent_dev", "positive_items": ["B07H8ZYVMV", "B003NAW8MC", "B071DG54MX"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a portable setup to rehearse and record guitar-and-drum song ideas, with secure protection for my Explorer guitar, flexible cymbal placement, and a compact multitrack recorder for capturing demos."}
{"candidate_id": "dev-43a83d839996c73dd7db8f39", "partition": "agent_dev", "positive_items": ["B0B8F6LD9F", "B01HUCYOXE", "B07SPHH7TD", "B0C5PRQ9K6", "B075MCRFYZ", "B09G5KLKX2", "B00TV90MT0"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing an electric guitar and its playing setup, including safe bench support, fret-end cleanup, vintage-style internal rewiring, fresh warm-toned strings, comfortable playing support, compact pedal connections, and the proper cable from the amplifier to its speaker cabinet."}
{"candidate_id": "dev-440bd5f10e0bdf2bb0098bfd", "partition": "agent_dev", "positive_items": ["B003FXO8MK", "B07V46KRD8", "B06W9NGW7Z"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a small jazz guitar recording project involving a two-mic setup and upgrades to both a 3+3 guitar and a seven-string electric, with appropriate locking hardware and smooth flatwound strings."}
{"candidate_id": "dev-442109f51413c7cdd2e07016", "partition": "agent_dev", "positive_items": ["B09BF8XDF4", "B00H4PEMM6", "B08R5GM6YB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my acoustic guitar for a live set and need longer-lasting medium strings, an easy one-hand way to change keys, and a compact tool for quickly removing and installing strings."}
{"candidate_id": "dev-4425a40fb35e418d0068260b", "partition": "agent_dev", "positive_items": ["B07BSHS3BX", "B09V91H5XM", "B08BW2TBD7"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my electric guitar ready for a UV-lit live performance and need colorful, durable strings, a comfortable adjustable way to carry it, and a secure stand for breaks and transport."}
{"candidate_id": "dev-446b1775280655146da611f3", "partition": "agent_dev", "positive_items": ["B0B8M5FJB6", "B08DM9NFLH", "B00IFOTSJW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home guitar practice and display area where I can tune accurately, play comfortably with an adjustable shoulder strap, and safely hang the instrument on the wall between sessions."}
{"candidate_id": "dev-449134c4801d202f96f4277f", "partition": "agent_dev", "positive_items": ["B08BHY6WWG", "B0BKKLR2Y8", "B07K34CPZG", "B073RQ3DQX"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a comfortable practice station for my 12-string guitar, with foot support, removable fretboard position markers, a wide-neck capo, and an adjustable stand for holding sheet music."}
{"candidate_id": "dev-44a3c6cdd2993f0c91b7e921", "partition": "agent_dev", "positive_items": ["B0BR2K4Z54", "B01FS4JNVY", "B0027EH4FQ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my choir music for rehearsals and performances and need a way to organize letter-size scores, keep several pages accessible on my stand, and secure them while I sing and turn pages."}
{"candidate_id": "dev-44b337cf4ef6166594092a8a", "partition": "agent_dev", "positive_items": ["B08BW2TBD7", "B01DPCONFM", "B00IFOTSJW"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a compact electric-guitar practice and small-gig rig, so I need to keep the instrument in tune, connect it reliably to an amp, and store it securely between songs and during transport."}
{"candidate_id": "dev-44c99d065628c7bbd556227a", "partition": "agent_dev", "positive_items": ["B00C10964I", "B0002D01JK", "B00RX5HQS4", "B07DWY7R2X"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my SG-style electric guitar for rehearsals and need longer-lasting light-gauge strings, a dependable cable to connect it to my amp, hands-free amp control, and a fitted protective case."}
{"candidate_id": "dev-44de6b52d0edefbaa1055cdb", "partition": "agent_dev", "positive_items": ["B01K1EJQ9U", "B07XP6MHQT", "B01AH3RSAO", "B08R5GM6YB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my acoustic guitar for regular playing and need replacement strings, an all-in-one restringing tool, a convenient way to keep picks handy, and a quick-release strap setup with thumb picks."}
{"candidate_id": "dev-44e60530d7b52538d871f2a8", "partition": "agent_dev", "positive_items": ["B01E6T56CM", "B0C5BMZ1K9", "B08DBDD6CM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home podcasting station and need a desk-mounted boom for an XLR condenser microphone, reliable connection to my computer through a low-latency USB interface, plus monitoring headphones for recording and checking levels."}
{"candidate_id": "dev-451dcdd6cacd026196b796f3", "partition": "agent_dev", "positive_items": ["B09SNBQCM8", "B077GK1J7N", "B09G5KLKX2"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refreshing my electric guitar setup for playing classic rock, with warm-sounding replacement strings, expressive foot-controlled tone shaping, and durable medium picks for strong rhythm and lead attack."}
{"candidate_id": "dev-455646f70d42d4c8ae346807", "partition": "agent_dev", "positive_items": ["B074PL4QH4", "B099QSKMBP", "B00CGFRJ2Y", "B01K1EJQ9U", "B018FCZKR2"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a comfortable home practice station for my guitar, with a secure place to rest it, quick-access pick storage, flexible picking options, finger protection, and a capo for changing keys."}
{"candidate_id": "dev-45582113cec0bf8da96c9426", "partition": "agent_dev", "positive_items": ["B078CYR3NN", "B0007Y8GSM", "B095QBH5ZB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a small acoustic jam set and need a reliable way to tune my guitar, plus easy handheld percussion for gentle rhythmic accompaniment and recording."}
{"candidate_id": "dev-46080d27bff4f09f0688f6a4", "partition": "agent_dev", "positive_items": ["B002OLYPAO", "B092LF6RLS", "B016QUXTZU"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home vocal and podcast recording station and need a condenser microphone setup with clean XLR connectivity, protection from plosive bursts, and headphones for monitoring recordings."}
{"candidate_id": "dev-4666ec6bf866dfa897d33a32", "partition": "agent_dev", "positive_items": ["B07DK59QNR", "B01N15T22N", "B0075DNS9A"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact, portable guitar setup for small gigs and need a board to organize several pedals, reliable 9V power for the rig, and a sturdy folding stand to elevate my amplifier."}
{"candidate_id": "dev-468da46a5a2b86a4573921c9", "partition": "agent_dev", "positive_items": ["B09KWWS7DH", "B0B95V41NR", "B07GFH8NTB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my acoustic-electric guitar and compact pedalboard for a small gig, so I need fresh, long-lasting strings, a reliable cable to the amplifier, and a short right-angle connection between effects without adding unwanted noise."}
{"candidate_id": "dev-46c188999bf76061c2b4ee70", "partition": "agent_dev", "positive_items": ["B096BH8JS3", "B07N2WWT61", "B0002H06KK", "B0BR2WB9JY"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact drum kit for practice and need a reliable way to tune and adjust the bass drum, secure replacement hardware, keep sticks within reach, and add a responsive single kick pedal."}
{"candidate_id": "dev-46ccb4012497a96175b53d10", "partition": "agent_dev", "positive_items": ["B00QYUVO0U", "B09S1W71K6", "B08QYL5BCK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact rehearsal rig for my band and need to refresh my drum kit with durable heads and a complete range of cymbal sounds, plus a modeling amp for electric guitar practice."}
{"candidate_id": "dev-472a5784c00b8c386be94884", "partition": "agent_dev", "positive_items": ["B01J50T2UE", "B01D2GAKV2", "B0064RTS0G"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring a Strat-style electric guitar and need replacement hardware for the pickguard and output jack, plus a fresh set of regular-gauge strings to get it playable again."}
{"candidate_id": "dev-472b4e4b21700d67b2500ef5", "partition": "agent_dev", "positive_items": ["B00GGN4NXA", "B0CB98SMQR", "B0B52FBC66"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact rehearsal studio to record an energetic band demo, so I need a durable directional mic for amps or percussion, several reliable balanced connections, and a multitrack recorder capable of capturing separate performances."}
{"candidate_id": "dev-47472adc2dc083367e32c45f", "partition": "agent_dev", "positive_items": ["B00LTDOL02", "B0BZX4HHSB", "B0002NRTL8"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a compact home rehearsal space and need secure wall storage for several guitars, an accessible rack for studio equipment, and padded, durable protection for a standard drum kit when transporting it to gigs."}
{"candidate_id": "dev-4793545250f17d2c5703a9c5", "partition": "agent_dev", "positive_items": ["B01MFAVCPV", "B0B8Z4YV4T", "B07226MCY6", "B09M7F7LFB"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refreshing my electric guitar and tube amplifier for rock and blues gigs, with a comfortable shoulder strap, secure strap attachment, fresh articulate strings, and matched low-noise replacement tubes."}
{"candidate_id": "dev-47b983bc3f24c2777cc5619f", "partition": "agent_dev", "positive_items": ["B0B52FBC66", "B0BM71QK8M", "B0BT9R8MMV"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live keyboard-and-vocal performance and need reliable balanced connections for several microphones, including a long run to the mixer, plus a piano-style sustain pedal for my electronic keyboard."}
{"candidate_id": "dev-47bf08f183aded106911237b", "partition": "agent_dev", "positive_items": ["B01B15JPCQ", "B018FCZKR2", "B0BHSG5C3G", "B01DPCONFM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home music practice area for guitar and keyboard, with reliable tuning, a long connection to an amp or audio gear, and secure adjustable stands for both instruments."}
{"candidate_id": "dev-47d06e8ed2bfdd918c76f01f", "partition": "agent_dev", "positive_items": ["B01822J05S", "B0BHSG5C3G", "B01DE4DPSC"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a home practice rig for electric guitar, bass, and acoustic instruments, and need versatile amplification, quick clip-on tuning, and enough cable length to move comfortably while playing."}
{"candidate_id": "dev-47d0c3ff377c8ed270ae07d5", "partition": "agent_dev", "positive_items": ["B071XBX2HW", "B00V8URXSS", "B0002F5C7Y"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact home percussion rehearsal setup where my microphone stand can hold my tambourine, headphones, and lyric sheets while I practice and record."}
{"candidate_id": "dev-47d867b1d2a5645c0227f19c", "partition": "agent_dev", "positive_items": ["B07KDYH2DF", "B00162ZSW6", "B0B8LZKBN7"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my bass ready for regular gigs and need fresh warm-sounding strings, dependable pedal-based tuning, and a comfortable wide strap to support the instrument onstage."}
{"candidate_id": "dev-4876e88961e89701713443cc", "partition": "agent_dev", "positive_items": ["B07BSJJV6V", "B0743HH1JS", "B01NBIW57O"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing to travel with my electric guitar for live performances and need a durable, lockable case, plus a way to control string noise during tapping and other demanding playing."}
{"candidate_id": "dev-4893acdcd385415efb195db2", "partition": "agent_dev", "positive_items": ["B07B4D7HWD", "B016QUXTZU", "B07R3S93K8"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a compact home studio for recording guitar and vocals, with stable desk-level microphone support, cleaner speech and singing audio, and safe wall storage for several guitars."}
{"candidate_id": "dev-489a4085207d7d9910a8314c", "partition": "agent_dev", "positive_items": ["B0BSCBGPCL", "B075VPGJCX", "B07VWSB34H"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for a casual acoustic singalong and need a practical setup to carry my 3/4-size guitar, play with reliable picks, and perform vocals hands-free with a mic and stand."}
{"candidate_id": "dev-48c89ec5087d3f00a7be45e4", "partition": "agent_dev", "positive_items": ["B0BPJ4Q6FJ", "B08VF4K987", "B07N1H89LL"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m refreshing my six-string for studio Nashville/high-strung parts and want an active bridge-and-neck pickup upgrade, fresh bright strings for doubled 12-string-style textures, and an accurate tuner to set everything up properly."}
{"candidate_id": "dev-48dc2caf8948ea1cac7c5733", "partition": "agent_dev", "positive_items": ["B07CYRYQ8G", "B01I6LIZ8S", "B06X9KG3HW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home vocal recording and podcast station that can handle several microphone inputs, connect with balanced XLR cables, and keep a condenser mic securely positioned on an adjustable arm for clear, powered recordings."}
{"candidate_id": "dev-48de8c42ce8cb1b2566bf142", "partition": "agent_dev", "positive_items": ["B0BTC9YJ2W", "B083R2QB96", "B0002D0CEO", "B08R5GM6YB", "B00IFOTSJW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for a rehearsal where I’ll play both a 12-string acoustic and a long-scale bass. I need fresh acoustic and bright, punchy bass strings, an all-in-one restringing tool, a clip-on tuner, and durable picks for practice and performance."}
{"candidate_id": "dev-492dab32286235786be093dd", "partition": "agent_dev", "positive_items": ["B005Q1XR8U", "B08NVVLB16", "B07PSWC1XY"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home vocal recording chain and need a reliable dynamic microphone, plosive protection, and a low-noise tube for adding warmth and detail through my preamp."}
{"candidate_id": "dev-4939bbcb671ea49434e622c0", "partition": "agent_dev", "positive_items": ["B07CHP22XJ", "B00S9WSNWS", "B0C4XQ496G"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a small living-room karaoke party with a vintage stage look, hands-free microphone placement for singers, and a motorized disco-ball centerpiece."}
{"candidate_id": "dev-4975e54b91062056e166ddb2", "partition": "agent_dev", "positive_items": ["B00OA627NI", "B0161V2UY0", "B00HX9EZC0", "B098PJDQTG", "B00N19LGZ0", "B09Z93N9WG", "B01H0PACWI"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable electronic drum setup for rehearsals and small gigs. I need movable hi-hat support, an additional textured playing surface, flexible ways to connect laptop stereo and route balanced signals, plus patching options and padded cymbal transport."}
{"candidate_id": "dev-497fcaa788447df17119c1cd", "partition": "agent_dev", "positive_items": ["B00C5B20FK", "B01K1EJQ9U", "B004LLV04E"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home electric-guitar recording corner and need to capture vocals and guitar through a USB interface, monitor with headphones, keep picks handy, and replace a worn 1/4-inch output jack."}
{"candidate_id": "dev-49aa395e685c2c237611c308", "partition": "agent_dev", "positive_items": ["B0C5BMZ1K9", "B092LF6RLS", "B01E6T56CM"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a home podcast and livestream workstation and need clear vocal capture on an adjustable desk boom, direct headphone monitoring, a USB interface for my computer, and a long balanced connection for flexible placement."}
{"candidate_id": "dev-4a20fe887b8149fd731a8bfa", "partition": "agent_dev", "positive_items": ["B000ZMYRJS", "B0BSGM6CQ9", "B09S2VB3KW"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a quiet electric-guitar practice rig: I want heavier-gauge strings with comfortable plain-string tension, grippy picks for precise strumming, and headphone-based AC30-style amplification so I can practice without disturbing anyone."}
{"candidate_id": "dev-4a3c3c372fd45186e2813412", "partition": "agent_dev", "positive_items": ["B07PKD8F5D", "B07NWZSBF3", "B01HUCK1QS"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m upgrading my Tele-style guitar with better intonation adjustment, replacement knobs for solid-shaft controls, and a sturdy surround for mounting its single-coil pickup."}
{"candidate_id": "dev-4a70b18d9b714b75904d2d19", "partition": "agent_dev", "positive_items": ["B0B8Z3YY7N", "B0B81D71K8", "B06ZZ375CD", "B0BR2VF53F", "B0B3VQQ6XY", "B003AYNHGW", "B0B92LPGD2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring a Fender-style Stratocaster and need compatible parts to rebuild its tremolo system, refresh tuning stability, and replace the volume and tone controls with matching knobs for a complete hardware and electronics update."}
{"candidate_id": "dev-4ab4f37902a11a44405babd4", "partition": "agent_dev", "positive_items": ["B088DD5M4V", "B07DWY7R2X", "B07X2LN3FV", "B0B95V41NR"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my electric guitar setup for slide practice and home playing, with light-gauge strings that hold their tone, dependable short and long instrument connections, and a medium glass slide for a warm, thick sound."}
{"candidate_id": "dev-4ab7e8b817015b7a5b7ac0cb", "partition": "agent_dev", "positive_items": ["B00KME1F2G", "B003HGJ2YE", "B076DTRWSK", "B00IPHSRN2", "B0BXT2KZYB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m upgrading my electric guitar for versatile live and studio tones, with neck and bridge pickups offering multiple voices, reliable switching and volume/tone controls, plus a secure strap connection."}
{"candidate_id": "dev-4abeea41a99ddfeafc262cd2", "partition": "agent_dev", "positive_items": ["B005N559FI", "B09T82W1SN", "B01K1EJQ9U"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring an F-style mandolin and want smoother replacement tuning hardware, plus a practical way to keep durable picks handy for strumming and lead playing."}
{"candidate_id": "dev-4ac0788c804d31f7d729c3c2", "partition": "agent_dev", "positive_items": ["B075R91PXY", "B01H8E58SY", "B0BKKRKM2Q", "B01HCGWS2W", "B001F1X34I", "B00LIW74US"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I'm preparing a small live acoustic guitar-and-vocal set and need a replacement tuning key plus a capo for quick song changes, balanced microphone connections, a way to split the signal between audio inputs, and a powered low-end speaker that accepts a mixer feed."}
{"candidate_id": "dev-4acef0fce6fb56b636865087", "partition": "agent_dev", "positive_items": ["B00E9EC2K4", "B0002E1G98", "B07BC4KMQK", "B077H1WCSS", "B0813D5BFL", "B096K4CPC7"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a beginner violin practice routine and need a way to learn finger positions, tune accurately, keep steady rhythm, safely hold the violin and bow between sessions, remove rosin and grime, and maintain proper humidity for the instrument."}
{"candidate_id": "dev-4ad6ca91074c6cf524ff24e4", "partition": "agent_dev", "positive_items": ["B09RN7GR8F", "B0C38LLMXG", "B07226MR9Y", "B07L77GP1Y"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home studio to record a small acoustic ensemble in stereo, layer in retro-style synth parts, and route several microphones and instruments cleanly into my computer with enough balanced connections for flexible monitoring."}
{"candidate_id": "dev-4adea4fa16df99c970b0d890", "partition": "agent_dev", "positive_items": ["B0002GX7XY", "B08JMQR2JK", "B00IFOTSJW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small guitar practice and jam space with room to safely hold several instruments, dependable picks for playing, and a quick clip-on tuner for keeping everything in tune."}
{"candidate_id": "dev-4b496cdf300620e017af9d4e", "partition": "agent_dev", "positive_items": ["B093T1ZNSY", "B019NY2PKG", "B00P00RVI4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a small karaoke or DJ setup and need hands-free microphone support, reliable long speaker connections, and a way to link banana outputs with Speakon-compatible equipment."}
{"candidate_id": "dev-4b4b076293ea5df3646b26de", "partition": "agent_dev", "positive_items": ["B09JJ784V5", "B01DE4DEGK", "B015JTEBN8", "B07N5J3GTB", "B08DBDD6CM", "B01H0PACWI", "B091MZPYBQ"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing a portable vocal setup for small events, with hands-free mic positioning, wind and moisture protection, XLR and balanced connections to audio gear, laptop stereo playback, and a durable bag for carrying the stands."}
{"candidate_id": "dev-4b89e5846121eb6f3918c5f2", "partition": "agent_dev", "positive_items": ["B08BJGBHN7", "B093YKLWVN", "B08JMQR2JK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small guitar practice corner and need a way to safely hold several instruments, refresh their fretboards, and try different pick gauges and materials to find what suits my playing."}
{"candidate_id": "dev-4ba749bffb703f9129083283", "partition": "agent_dev", "positive_items": ["B015XLDQD8", "B00NARHNCS", "B0BTC9YJ2W"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restringing and setting up my 12-string acoustic guitar, and need the right extra-light strings plus tools to measure the action and get the instrument accurately tuned afterward."}
{"candidate_id": "dev-4c4361bfa5319cc4d27ff2ff", "partition": "agent_dev", "positive_items": ["B008BPI2OW", "B06XB3FQKB", "B003OYOXDO"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m getting my electric guitar rig ready for rehearsals and need reliable amp control, a faster way to change strings, and a dependable connection from my instrument to the amplifier."}
{"candidate_id": "dev-4c681d4368c87241cdecdc76", "partition": "agent_dev", "positive_items": ["B004HNZZCY", "B07FQ4XD7Q", "B074K56PFT"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my electric guitar ready for regular rehearsals and gigs and need comfortable carrying support, protection from rain during transport, and replacement strings for a bright, playable setup."}
{"candidate_id": "dev-4c77e80870dc3d69de554493", "partition": "agent_dev", "positive_items": ["B0BJ3BBTXH", "B0BPLFP5P6", "B07LH7F5SH", "B08QGMRGWM", "B07MWZ9CPK"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a home guitar recording corner while refurbishing my electric guitar: I need to reduce room reflections, install a push-to-mute control and replacement hardware, then restring and quickly tune the instrument for recording."}
{"candidate_id": "dev-4cadc2782f70a699a132eab4", "partition": "agent_dev", "positive_items": ["B002YW9VL6", "B00TUY4WV0", "B00TH478JQ"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m preparing a home jazz recording with keyboard accompaniment and soprano saxophone, so I need a versatile keyed instrument plus reliable reeds and an adjustable setup for shaping the saxophone’s tone."}
{"candidate_id": "dev-4cbd1ec9c766a40f960a44f6", "partition": "agent_dev", "positive_items": ["B00OVASYBW", "B07M6H5RM9", "B0BPLFP5P6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up for bass practice and small gigs, and need a compact way to amplify my low end, keep the instrument secure while standing, and quickly tune it before playing, ideally with a personalized adjustable strap."}
{"candidate_id": "dev-4cc87c7d09c63f134e70bcd6", "partition": "agent_dev", "positive_items": ["B082XMFWFK", "B0BKZ7LF6F", "B07GZLKCB5"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact home rehearsal station for playing keyboard, guitar, and drums, with a stable adjustable stand, reliable instrument connections, and convenient storage for multiple pairs of sticks."}
{"candidate_id": "dev-4cd1118ffff3bdb087aed89d", "partition": "agent_dev", "positive_items": ["B015X3CXXA", "B0C621L9FB", "B004SCZ344"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m restoring my Squier Affinity Strat for home recording and need a compatible tremolo replacement, plus an easy way to layer repeating guitar parts with lush analog modulation."}
{"candidate_id": "dev-4d04ec66a033f83da8a23084", "partition": "agent_dev", "positive_items": ["B0BT2W3TTM", "B081R2QZS9", "B0952MPSZC", "B07Q3C9M4N"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m restoring a vintage-style Tele electric guitar and need compatible hardware to anchor strings through the body, improve tuning and intonation, and securely mount the neck."}
{"candidate_id": "dev-4d28cedd4e4ccbb6a93bc468", "partition": "agent_dev", "positive_items": ["B0BR2VHR6T", "B07TD9NX9F", "B00N19LGZ0"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact drum kit for small gigs and need a padded way to carry my cymbals, a short boom for positioning a microphone in tight spaces, and quick microphone changes during setup."}
{"candidate_id": "dev-4d2f12c2ec4f284962268a73", "partition": "agent_dev", "positive_items": ["B075MPFFRV", "B006QUGBVK", "B07Q96NQ6T"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a compact pedalboard for guitar and bass rehearsals, with an amp-like overdrive tone, reliable tuning, and a clean way to send my signal to multiple destinations without losing clarity."}
{"candidate_id": "dev-4d57d7bde53ec041d6c84696", "partition": "agent_dev", "positive_items": ["B00OIA3QNQ", "B001LTZZSG", "B0002H0RXQ"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m recording a one-person folk demo with a low-register ukulele, singing, and harmonica played hands-free. I need a USB setup for vocal and instrument input plus headphone monitoring while performing."}
{"candidate_id": "dev-4d5d43372eb4e93adc128e26", "partition": "agent_dev", "positive_items": ["B08XMK3D28", "B00M0VD428", "B072FBNF42", "B000CCN15M", "B08R5GM6YB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home studio to record a guitar-based demo with vocals and virtual instruments. I need to prepare the guitar for reliable playing, switch tunings quickly, capture a speaker-shaped direct signal, monitor the recording, and add keyboard parts from my computer."}
{"candidate_id": "dev-4d66c0cb72be3b974a4e734d", "partition": "agent_dev", "positive_items": ["B07WW5PKCP", "B001L8NGJ2", "B0BG95DG2H"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m getting my Fender guitar setup ready for regular practice and performances, and need a compatible amp foot controller, a safe cleaner to restore and protect the finish, plus plenty of heavy picks for consistent playing."}
{"candidate_id": "dev-4d81a5f2874358508c3575c1", "partition": "agent_dev", "positive_items": ["B0951C4RGR", "B00MXUJ394", "B017808XKS"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I'm getting my ukulele ready for regular practice and need supplies to replace the strings, tune it accurately, and switch between gentle strumming and precise picking."}
{"candidate_id": "dev-4dac90e341ec70bdcf3d21a5", "partition": "agent_dev", "positive_items": ["B0BMZ3PZ3G", "B07N1RPV4J", "B07B4ZZVDV"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m preparing clarinet, French horn, and tenor saxophone parts for a school concert and need reliable ways to keep clarinet reeds humidity-stable, clean buildup from the horn’s tubing, and remove moisture from the saxophone between rehearsals."}
{"candidate_id": "dev-4db0fc6ddc6ba5e7cfa6d139", "partition": "agent_dev", "positive_items": ["B0BKZ6B5NR", "B09X6DYNQ3", "B00K7VE5MQ", "B0BK6S7QF4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring a compact drum kit for live gigs and need a balanced cymbal setup plus durable, tone-controlled replacement heads for the tom, snare, and bass drum."}
{"candidate_id": "dev-4dc3ee6980107491485c0154", "partition": "agent_dev", "positive_items": ["B002QRY0EM", "B002P6I6A8", "B016PHMM34"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a beginner slide-guitar practice setup to learn right-hand rolls, fretboard notes, and chord positions in both open G dobro and E-tuned lap steel, with picks for daily practice."}
{"candidate_id": "dev-4dd45e33b174a6c0510337e9", "partition": "agent_dev", "positive_items": ["B076ZSHQ47", "B07QYLW95R", "B09RJZSQML"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my guitar ready for regular playing and need supplies to change strings efficiently, strum comfortably, and keep the strap and cable securely attached during practice and performances."}
{"candidate_id": "dev-4dde59120c867cae15f6377e", "partition": "agent_dev", "positive_items": ["B0002M71V2", "B07C2CH6RY", "B074K56PFT"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my tube guitar rig ready for gigs and need replacement preamp and power tubes, along with weather-resistant protective transport for my acoustic or electric guitar."}
{"candidate_id": "dev-4deb9274dcba76a36af70230", "partition": "agent_dev", "positive_items": ["B00OA627NI", "B00O5EL3NU", "B08Z5XSKP8", "B007YYNGTM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a small live theater production with microphones, a PA mixer, and water-based fog effects, so I need reliable stage cabling for audio connections plus suitable cleaner to maintain the fog machine."}
{"candidate_id": "dev-4e7245666dc4cf27ad59df88", "partition": "agent_dev", "positive_items": ["B00P0AHJZY", "B00T3GL2XQ", "B015JTEBN8", "B08DBDD6CM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up an alto sax jazz recording session and need a reliable way to position the microphone, connect it to my recorder, and experiment with a new mouthpiece, ligature, and several reed styles."}
{"candidate_id": "dev-4e9ba0a44a2b82367c9fc031", "partition": "agent_dev", "positive_items": ["B015X3CXXA", "B07BSZNKTM", "B00CGFRJ2Y"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a solo acoustic guitar songwriting rig for practice and small performances, with hands-free looping, quick key changes, and comfortable picks for varied playing."}
{"candidate_id": "dev-4ec850a7ccbe01bd898dfc24", "partition": "agent_dev", "positive_items": ["B072M64M8R", "B09J1QRTH7", "B0B1SF7C4M", "B07BSHM52Q"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m upgrading my Strat-style electric guitar for regular rehearsals and gigs: I need a ready-to-install noiseless pickup setup, rechargeable onboard power, accurate tuning, and a lightweight way to carry the instrument and accessories."}
{"candidate_id": "dev-4ee165b4571bcc4ff635f8c9", "partition": "agent_dev", "positive_items": ["B0BKZ6JR1L", "B00WJ3KH0Y", "B07JPHJFLZ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my drum kit for high-volume rock practice and need dependable sticks, replacement hi-hat mounting hardware, and a snare wire for consistent response and projection."}
{"candidate_id": "dev-4f42f71484ae81b4037dc327", "partition": "agent_dev", "positive_items": ["B0002HLKKK", "B01AW5068S", "B002Q0WTCE"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a beginner Bb clarinet setup for lessons and need comfortable instrument support, along with accessories that encourage a focused tone, good embouchure, and a secure reed setup."}
{"candidate_id": "dev-4f7acd3b07c57e1f27a23a72", "partition": "agent_dev", "positive_items": ["B0C3LH9FX2", "B0002F7A1A", "B07FZ5XBCJ"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m preparing a portable keyboard setup for small live gigs and need stable adjustable playing support, a padded way to transport the instrument, and clean impedance-matched connection to the venue’s mixer."}
{"candidate_id": "dev-4f7b72c0fde24051c58c8416", "partition": "agent_dev", "positive_items": ["B01MRJUB7Z", "B0773JR52G", "B0B6P55RBN"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a portable setup for practicing and performing classical guitar pieces, with a comfortable nylon-string instrument, a secure way to change keys cleanly, and an adjustable stand for my sheet music."}
{"candidate_id": "dev-4f8b8b3d427e8649c2e0fb7a", "partition": "agent_dev", "positive_items": ["B08YYMJ5R9", "B0146YTJOI", "B0BKR2ZM9X", "B08DMLGP4Z", "B07BMXBV73", "B08CGSGCHZ", "B0C6J1BN77"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my guitar-and-tube-amp setup for live playing and need reliable tuning stability, comfortable support, slide and fingerstyle options, a way to retube the amp, quick tuning checks, and polish to protect the instrument’s finish."}
{"candidate_id": "dev-4f9b08e685d4226dea2a05e8", "partition": "agent_dev", "positive_items": ["B07RKL6P69", "B00VBNZKVO", "B0723CVMGC"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m building a compact live guitar rig that lets me switch between two guitars or amps, send convincing amp-style tone straight to the PA, and add adjustable spring reverb without carrying a traditional amplifier."}
{"candidate_id": "dev-4ff2ac8f95fe2a5d80cb8511", "partition": "agent_dev", "positive_items": ["B071RL22PZ", "B001RMH6JS", "B07XP6MHQT"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my 12-string acoustic ready for a casual performance and need to change keys without retuning, manage the strap easily, play with thumb picks, handle bridge-pin work, and enjoy a drink afterward."}
{"candidate_id": "dev-50158718daaba1f3acb9ea29", "partition": "agent_dev", "positive_items": ["B07NCN4WTB", "B06WLP2BSW", "B09SQ4LFTH", "B07N2WWT61"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a marching percussion setup for an upcoming performance and need responsive nylon-tipped tenor sticks, secure on-instrument storage for spares, quick-access stick storage on my hardware, and a hi-hat-mounted steel-jingle accent with quiet stick response."}
{"candidate_id": "dev-50268ed373d76ef259e04204", "partition": "agent_dev", "positive_items": ["B00166XRVQ", "B00KCXOJCU", "B00OSOM59I"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a Roland electronic drum performance rig and need hardware to secure the cymbals, plus balanced cables for routing the drum module’s stereo outputs into a mixer and connecting the audio channels cleanly."}
{"candidate_id": "dev-50804a2aec08a2e4b69db29e", "partition": "agent_dev", "positive_items": ["B0002IHFHQ", "B00AA5MOFY", "B0B6P55RBN"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m starting regular Bb clarinet practice and need a complete setup with a reliable instrument, portable adjustable support for my sheet music, and supplies to keep everything clean and maintained."}
{"candidate_id": "dev-509317431a2a215f990863e4", "partition": "agent_dev", "positive_items": ["B08Z6TDJZ9", "B0094TLUYI", "B0002E1P76"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for a concert where I’ll switch between tenor and soprano saxophone and need secure tenor transport, a soprano mouthpiece setup, and reliable sheet-music lighting at my stand."}
{"candidate_id": "dev-50d88cb3790726ee340cb4ea", "partition": "agent_dev", "positive_items": ["B0002CZTIO", "B09BF8XDF4", "B0002F4N0Q"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my acoustic guitar for a live performance and need fresh, long-lasting strings, a convenient way to keep picks handy, and a compact clamp-on tray for small essentials beside my setup."}
{"candidate_id": "dev-511ba296736b89e696465800", "partition": "agent_dev", "positive_items": ["B003B1L70M", "B00AMFFQWK", "B076264HZC", "B09P3ZVLV8", "B075MRMFM8"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m rebuilding a live rock drum and percussion rig: I need fresh heads for several differently sized drums, hardware to mount an added percussion accessory, and balanced cables to connect microphones to my mixer for recording."}
{"candidate_id": "dev-516107f6c9d5105208ad8393", "partition": "agent_dev", "positive_items": ["B005HZ6XY0", "B07MJCLK46", "B0BT2W3TTM", "B0BPJ4Q6FJ", "B0B8F6LD9F"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring my six-string Strat-style electric guitar and need vintage-style wiring, dependable locking tuners, refreshed neck and output-jack hardware, plus a bright Nashville-tuning string set for the completed rebuild."}
{"candidate_id": "dev-51b16a134fee55d8c6c6916f", "partition": "agent_dev", "positive_items": ["B07XP6MHQT", "B0BSCFTV2G", "B074WXM13T"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up my acoustic guitar for casual performances and practice, and need easy key changes, comfortable hands-free support, a quick-release strap connection, and thumb picks close by."}
{"candidate_id": "dev-51e675c95783dd4a78268414", "partition": "agent_dev", "positive_items": ["B003AYLSPO", "B0BCXMFM46", "B000P5ZQFY", "B06ZZ375CD", "B06W2NS7RW"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m restoring my vintage-style Stratocaster and want a coordinated upgrade: refresh its tortoise-shell pickguard, reduce pickguard noise, replace aged controls and the missing pickup-selector tip, and add a secure strap attachment without bulky hardware."}
{"candidate_id": "dev-51e8e61bcd00f4b56707e1ff", "partition": "agent_dev", "positive_items": ["B07JCW1KGG", "B0889FMRNL", "B00H7Y2X8O", "B01BLLD0GW", "B09BCVF2MW", "B0BHSG5C3G", "B07TD9NX9F"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m outfitting a compact live five-string bass-synth rig and need the instrument, synth pickup, reliable strap security, easy tuning, tidy pedal connections, speaker and quarter-inch compatibility, plus a fast way to swap microphones on stage."}
{"candidate_id": "dev-51ecbfb518b8deec331fa97f", "partition": "agent_dev", "positive_items": ["B09HCRTKL4", "B09HL6MZ45", "B0BKZ1G3P3", "B075FTNXKW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my drum kit for versatile rehearsals, needing a responsive snare-side head, durable coated heads for several tom sizes, and a low-profile vertical mounting setup that keeps the toms and snare stable without bulky stands."}
{"candidate_id": "dev-51ef8cc5d0ec6cdd69e86308", "partition": "agent_dev", "positive_items": ["B07N5J3GTB", "B003GEBGA0", "B08DBDD6CM", "B091MZPYBQ"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a simple two-singer setup for rehearsing and recording live vocals, with handheld dynamic mics, protection against breath and wind noise, and cables for connecting both microphones to my audio equipment."}
{"candidate_id": "dev-5225e71f2799a7acef63edef", "partition": "agent_dev", "positive_items": ["B093T1Y12B", "B01JAEOSXG", "B07CQR879L"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m outfitting a small performance venue with a centralized digital audio setup, recessed stage connectivity, and enough long balanced runs to route multiple microphones and instruments neatly between the stage and mixing position."}
{"candidate_id": "dev-523c09275ba5c9b180eaf491", "partition": "agent_dev", "positive_items": ["B00LWAJJ40", "B00WRJM5NC", "B09ZTHDXTD", "B001LXMXU0"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a small DJ lighting setup for an event and need reliable DMX connections with proper signal termination, plus a compact tabletop stand to keep my mixer or controller elevated and accessible."}
{"candidate_id": "dev-5262707243854b641947097c", "partition": "agent_dev", "positive_items": ["B004XLATPI", "B00KG7CB2C", "B0002F6K4I", "B00275G7KI", "B09X6KS6GB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a compact drum-kit effects setup for recording, with layered splash accents, a bright bell voice, a small drum tuned for focused resonance, and hardware to mount the cymbals together."}
{"candidate_id": "dev-52943ab0187d942bd15c93ab", "partition": "agent_dev", "positive_items": ["B0B96H6DMR", "B0BZ1XQX97", "B09R2TMLJR"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my 7-string electric guitar for a precision-focused practice session and need fresh strings, comfortable hands-free support, and picks for accurate articulation."}
{"candidate_id": "dev-52f670f3384d7f162a490d80", "partition": "agent_dev", "positive_items": ["B0B8M2Q1DS", "B06XB3FQKB", "B0B949FD92", "B0BKZ3GCGR"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for my first small guitar performance and need a setup for connecting my instrument to an amp, playing comfortably hands-free, keeping song charts visible, and having dependable picks for strumming."}
{"candidate_id": "dev-53954a55e585d625ffa8fff8", "partition": "agent_dev", "positive_items": ["B0B5YX2WL5", "B075RFJYF4", "B08HX9MMGL"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together an organized flugelhorn setup for rehearsals and gigs, with a properly sized bell cover, a standard mouthpiece, and a padded zippered pouch to carry and protect several small-brass mouthpieces."}
{"candidate_id": "dev-5395f18cdec8785bbb686b1c", "partition": "agent_dev", "positive_items": ["B076SHBWRM", "B0B44VTPS1", "B07MRS93HC"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home guitar recording rig and need classic cranked British-style overdrive, flexible short-height microphone placement, and reliable right-angle connections between my guitar, pedalboard, and amp."}
{"candidate_id": "dev-53c681c54aceced71ef45db4", "partition": "agent_dev", "positive_items": ["B000EEL50Q", "B001677QO4", "B08R5GM6YB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restringing and giving my acoustic guitar a full refresh, so I need light strings, an easy tool for winding, cutting, and removing bridge pins, plus cleaner and polish for the instrument."}
{"candidate_id": "dev-53cc90475a07441807fbf2fb", "partition": "agent_dev", "positive_items": ["B0BPJ4Q6FJ", "B0C61ZDWWH", "B08NVVLB16", "B0BVRWDFBD"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m recording a layered home-studio country demo and need a bright Nashville-tuned guitar part, clear vocal capture, an additional dynamic mic for an instrument or amp, and an 88-key velocity-sensitive controller for arranging and producing the track."}
{"candidate_id": "dev-53dae70ea5c3ec8013ab753b", "partition": "agent_dev", "positive_items": ["B003B1BOFK", "B0BKZ2S4PC", "B0B2D98XV8"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my acoustic drum setup and need to tame a tom’s overtones, keep durable 5A sticks on hand, and mount an extra cymbal within easy reach."}
{"candidate_id": "dev-53dbb6f5b312f5031e1387af", "partition": "agent_dev", "positive_items": ["B07JCW1KGG", "B06XB3FQKB", "B08R5GM6YB"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I'm getting my electric guitar rig ready for rehearsals and need a reliable long lead, compact right-angle connections for closely spaced pedals, and an all-in-one tool for restringing and basic guitar maintenance."}
{"candidate_id": "dev-53ecf8b90cb194f8a8b5f64b", "partition": "agent_dev", "positive_items": ["B07N5G6Y5G", "B0B95V41NR", "B01C5TBX68"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m preparing my tremolo-equipped electric guitar for a clean studio session and need a light, fresh setup that reduces spring noise while making a short, reliable connection to my rig."}
{"candidate_id": "dev-53fd53bc711e4eb745880afc", "partition": "agent_dev", "positive_items": ["B08JMQR2JK", "B0B863M78X", "B00646MZHK"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m preparing for a small acoustic string-band rehearsal and need playing accessories, secure places to rest several instruments between songs, and a quick clip-on tuner for easy setup."}
{"candidate_id": "dev-54702a87cfa2e1c997d51be6", "partition": "agent_dev", "positive_items": ["B00HX9F3ZS", "B00LSW83F8", "B096BH8JS3", "B09TXP3FSK"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together an electronic drum practice setup and need responsive pads, a stable comfortable seat, a smooth bass-drum pedal, and durable sticks for regular playing at home."}
{"candidate_id": "dev-5477ada4b9cc5f809685a825", "partition": "agent_dev", "positive_items": ["B0037036QA", "B07C91JT14", "B0010CTD5U"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up sound for a small live music event and need to support speakers over subwoofers, mix several vocal or instrument microphones with effects, and send the performance to a computer for recording."}
{"candidate_id": "dev-5487408ca9642252a120f472", "partition": "agent_dev", "positive_items": ["B00CGFRJ2Y", "B09BF8XDF4", "B0002OOMWQ", "B06ZZ2S726"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up an acoustic-electric guitar for regular fingerstyle and strummed practice, needing long-lasting medium strings plus both flexible flat picks and thumbpicks for varied playing techniques."}
{"candidate_id": "dev-54af3e706b5388ce7b7f0255", "partition": "agent_dev", "positive_items": ["B014PHJF2C", "B086ZNBT1M", "B06Y1KSVDK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small DJ stage for an indoor party and need portable on-demand fog with compatible fluid, plus RGB wall-wash lighting that can run in DMX or sound-controlled mode."}
{"candidate_id": "dev-54d99b228cf5afdbf83afd10", "partition": "agent_dev", "positive_items": ["B07226MCY6", "B003BFZI12", "B003BG3IU4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my Gretsch guitars for rehearsals and performances and need sturdy fitted protection for both a hollowbody and an Electromatic solid body, plus a comfortable adjustable strap."}
{"candidate_id": "dev-54f0747c205947d92ee7d26c", "partition": "agent_dev", "positive_items": ["B00CGFRJ2Y", "B09PJ3N73Y", "B07FTVKZB3"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a comfortable setup for playing and transporting my Telecaster- or Strat-style electric guitar, with vintage styling, an adjustable shoulder strap, a protective case, and thin picks for flexible playing."}
{"candidate_id": "dev-551b3170b30a26561a783659", "partition": "agent_dev", "positive_items": ["B012CS9SDM", "B09TQ5K47S", "B0002IHFJ4", "B0058MJX4O", "B00CBPJLFW"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a home clarinet practice and recording routine, with a safe place to rest the instrument between takes, organized reed storage, supplies for regular wood maintenance, and a clip-on microphone plus comfortable headphones for monitoring my playing."}
{"candidate_id": "dev-551c197ef0985585af2a1b5f", "partition": "agent_dev", "positive_items": ["B001CU2QN6", "B00076QKQA", "B0BM71QK8M", "B0BXSYL7X8"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a four-zone paging and background-music system for a restaurant with banquet rooms and a patio, needing weather-resistant speakers, centralized rack-mounted audio gear, and long balanced connections between areas."}
{"candidate_id": "dev-558bb238ba0e7fcd13d4746c", "partition": "agent_dev", "positive_items": ["B08L62F27C", "B08DNC25KT", "B01HYEAC0M"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m restoring an electric guitar with a vintage-style sonic blue refinish, adding removable cream binding accents, and replacing the worn control hardware for a cohesive classic look and reliable adjustment."}
{"candidate_id": "dev-559e71e8c31131ec6d04e641", "partition": "agent_dev", "positive_items": ["B003TLY9HM", "B0002D00FK", "B000EEL50Q", "B0BTC9YJ2W"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing my 12-string acoustic for a hands-free guitar-and-harmonica performance and need extra-light strings, a holder for a 10-hole harmonica, plus safe care products to clean, condition, polish, and protect the instrument."}
{"candidate_id": "dev-55a2c4b127cd12da4bb3e45d", "partition": "agent_dev", "positive_items": ["B089MVZX8F", "B014H3UMOE", "B00E4SN4VQ", "B079TLFL33", "B07R3S93K8", "B00DKAQGTG", "0879309210"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small guitar practice and maintenance space with safe wall storage, humidity protection, secure and comfortable playing hardware, reliable picks, a repair reference, and shielded wire for quiet electronics fixes."}
{"candidate_id": "dev-55d1f7e311b97041b44ec057", "partition": "agent_dev", "positive_items": ["B0002F4YDW", "B09HCVF8DH", "B01AATMW38", "B0BKZ1N6X6"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refurbishing my drum kit for loud rock rehearsals and recording, and need sturdy hardware to secure the setup, durable 12- and 14-inch heads, and subtle overtone control for focused, punchy tuning."}
{"candidate_id": "dev-55eaf60b7dc46e7b3ab7f18f", "partition": "agent_dev", "positive_items": ["B013J6IVA2", "B083WGHD96", "B07T9SZ8W5"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing for casual ukulele lessons and small acoustic sessions, so I need a comfortable hands-free way to play, gentle picks, and a padded case with room for sheet music and essentials."}
{"candidate_id": "dev-5605ff6dd2da2c9a35887c7c", "partition": "agent_dev", "positive_items": ["B00IPG7UXG", "B00RVE9X06", "B09RTZ26KV"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing my electric guitar for a dropped-tuning rehearsal and need tight heavy-gauge strings, a long amp connection, and grippy, sharp picks for fast, controlled articulation."}
{"candidate_id": "dev-561eeabd14fd28c14b574321", "partition": "agent_dev", "positive_items": ["B006BELA3K", "B00IFHCOUO", "B09RJZSQML"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m organizing an acoustic guitar-and-hand-drum jam and need reliable clip-on tuning, plenty of light picks for strumming, and a full-size traditional djembe for strong group rhythms."}
{"candidate_id": "dev-56560e72f4fa0a1e53da8cc1", "partition": "agent_dev", "positive_items": ["B0BT8GVK6M", "B09F2HJKHR", "B01LB3T4DI"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a portable setup for a small acoustic string-instrument gig and need reliable picking accessories, a comfortable strap for playing standing, and compact amplification that can handle both my instrument and vocals."}
{"candidate_id": "dev-5678a1feb5797653f5964748", "partition": "agent_dev", "positive_items": ["B0158GWWJ2", "B075KNF6GZ", "B01C5C6L0I", "B0002E56AS", "B0C6J1RKPT", "B09DF2S1D2", "B00V8URXSS"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m preparing for a small live acoustic-guitar performance and need to upgrade the instrument, add reliable tuning changes, send its amplified signal cleanly to the mixer, protect it in transit, and keep lyrics plus a second guitar conveniently accessible onstage."}
{"candidate_id": "dev-567f9cdb846ae3939a091a8a", "partition": "agent_dev", "positive_items": ["B0B49WJ3WT", "B078CYR3NN", "B0BR2WB9JY"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a small percussion setup for rehearsing with a community band, needing hand percussion accents, reliable sticks for drums, and a tool to adjust the drum hardware."}
{"candidate_id": "dev-569b8e7c8879992f5d2446dd", "partition": "agent_dev", "positive_items": ["B081CGHWDV", "B09FSRVQ61", "B07KRZ1HH8"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m refurbishing my Tele-style electric guitar and want to refresh the body hardware, securely attach the strap, replace the pickguard mounting screws, and upgrade the controls with a pre-wired three-way plate."}
{"candidate_id": "dev-569de9f50fbd78a2de700ae2", "partition": "agent_dev", "positive_items": ["B00IMB151M", "B01DK1ZGSQ", "B0BM71QK8M", "B07YM5ZHS9"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live vocal rehearsal system and need to connect balanced audio between a mixer, microphone, and PA cabinet, adapt mismatched outputs, and monitor the performance privately through comfortable closed-back headphones."}
{"candidate_id": "dev-56b4b19eb2654cd3cd352197", "partition": "agent_dev", "positive_items": ["B07NPRJXJ5", "B001DYYIZA", "B00O5UBK5U"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a compact DJ and vocal recording station around my MacBook and need a shortcut-labeled keyboard cover plus short balanced XLR connections, including a right-angle plug for tight spaces and extra patch leads."}
{"candidate_id": "dev-56f657a1817478f25938f3c8", "partition": "agent_dev", "positive_items": ["B096BHMVN1", "B07M7XDG44", "B0147QAALQ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I'm preparing my Bb clarinet for regular practice and lessons, and need reliable reeds, an easy-to-read tuner, and a sturdy protective case for transport."}
{"candidate_id": "dev-577f22c8f02266982404ae6b", "partition": "agent_dev", "positive_items": ["B07KKNMX2S", "B00VSYN25M", "B0027V760M"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live guitar performance and need a reliable way to connect my instrument to the PA, reduce hum over a long cable run, and send a balanced signal to the mixer or powered speaker."}
{"candidate_id": "dev-5788af9494ecc17348f8fac1", "partition": "agent_dev", "positive_items": ["B002LJPL5W", "B01DN7OC00", "B01E4MELN6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact rehearsal and recording rig for a keyboard-and-drums performance, with reliable microphone-to-mixer connectivity, hands-free keyboard sustain, and convenient stick storage during practice and gigs."}
{"candidate_id": "dev-579a6cce2555baff7a952861", "partition": "agent_dev", "positive_items": ["B073S8T9XF", "B0BXCQ9CJN", "B0BSZ126SP", "B07QBCY3DS"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my drum kit ready for rehearsals and small gigs, with a replacement 22-inch bass drumhead, dependable support for my snare and cymbal setup, and a protective way to carry several cymbals without them rubbing together."}
{"candidate_id": "dev-57a4bd26d5c3d2ce921f4d8b", "partition": "agent_dev", "positive_items": ["B001W99HE8", "B07MJ3KSVS", "B00OKA9F8O", "B07CQMZVYL"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I want to produce a small home pop recording with layered breath-driven melodies, a concert flute line, and computer-based accompaniment, using a compact keyboard controller and a directional instrument mic to capture the live parts."}
{"candidate_id": "dev-57a6c4924379dd6d1f50fe9c", "partition": "agent_dev", "positive_items": ["B00CBB3D1Y", "B07Y6TSTS2", "B01DE4DVO0"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a simple guitar practice and performance setup that lets me tune accurately, connect my instrument to the amp or effects, and switch a compatible function hands-free while playing."}
{"candidate_id": "dev-57e6324a87228afdb2aff2e7", "partition": "agent_dev", "positive_items": ["B017NT392Q", "B07PSWC1XY", "B0C6H9T5T6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home podcast and streaming station and need a USB microphone with flexible pickup options, a stable adjustable boom stand, and a pop filter for cleaner, more consistent vocal recordings."}
{"candidate_id": "dev-57ecaa007bf07b9701e61ae6", "partition": "agent_dev", "positive_items": ["B01K1EJQ9U", "B0BTC9YJ2W", "B08R5GM6YB"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m restringing my 12-string acoustic for upcoming practice and want warm extra-light strings, an all-in-one tool for removing and installing them, and a convenient way to keep picks within reach."}
{"candidate_id": "dev-580f300be2eba91f074420a6", "partition": "agent_dev", "positive_items": ["B0BKZ6M28F", "B09TXQ22KG", "B0B962GTW6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m upgrading my drum kit for powerful live rock playing and need longer, heavier sticks, protection for a bass drum head used with a double pedal, and a 14-inch snare setup that delivers sharper response and articulation."}
{"candidate_id": "dev-58229750ce26fd7129268f90", "partition": "agent_dev", "positive_items": ["B018FCZKR2", "B01K1EJQ9U", "B0BKZ3GCGR"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact guitar practice setup at home and need a safe place to park my acoustic or electric between sessions, keep spare picks within reach, and have a reliable supply of comfortable picks for playing."}
{"candidate_id": "dev-582794840b6cf00b69f5ad2f", "partition": "agent_dev", "positive_items": ["B003XKCLI8", "B015TBAFYK", "B00H7Y30BS"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for an acoustic band rehearsal and need comfortable drummer seating, long-lasting strings for the guitar, and reliable sticks for playing the kit."}
{"candidate_id": "dev-58291b70b2e49f7b6e4732a4", "partition": "agent_dev", "positive_items": ["B07M6B3RDW", "B0BKKLR2Y8", "B018FCZKR2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a portable practice station for my 12-string guitar and need reliable tuning, quick key changes, and a safe place to rest it between sessions."}
{"candidate_id": "dev-58345c6f5a4185ccae9ed327", "partition": "agent_dev", "positive_items": ["B00N5TGXOA", "B00L7UIE14", "B01AW50C0A", "B0BX8L1JNS", "B07MMNDQX1", "B07N1RPV4J"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for a recital where I’ll switch between alto sax, baritone sax, and clarinet, and need dependable reeds, humidity-protected reed storage, comfortable hands-free sax support, a secure baritone stand, and an adjustable stand for my sheet music."}
{"candidate_id": "dev-586ae4ee9423c2930ac1458d", "partition": "agent_dev", "positive_items": ["B08F7L191S", "B07MCZ9S8X", "B08B68JGFJ", "B078PG7NBY"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing an electric guitar and need supplies to install replacement pickup hardware, restring it efficiently, carefully adjust the nut slots, and smooth and polish the frets for a proper playable setup."}
{"candidate_id": "dev-58bdf0e9b3248a14041942bf", "partition": "agent_dev", "positive_items": ["B0B8Z6GZZ5", "B0002GWQ9U", "B07B8WL33G"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing a blues-rock guitar setup for recording and live playing, with a soulful slide tone, supplies to clean and protect the instrument’s finish and fretboard, and hands-free dual switching control."}
{"candidate_id": "dev-58c83614bab7fc04466d945b", "partition": "agent_dev", "positive_items": ["B079TLFL33", "B00HZH4D04", "B079NNZMLQ"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a beginner-friendly bass setup for rehearsals and want a four-string electric bass, a durable adjustable strap, and secure strap hardware for reliable playing."}
{"candidate_id": "dev-58f12036a7329bae765fca12", "partition": "agent_dev", "positive_items": ["B07DXQ1NP2", "B0BSGM6CQ9", "B08BJGBHN7", "B01K1EJQ9U"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refurbishing my Les Paul-style electric guitar: replacing its protective control hardware, restringing it with heavier-gauge nickel strings, and keeping a range of picks conveniently available for testing different playing styles."}
{"candidate_id": "dev-594e2b0d6e1de27c3268a3c9", "partition": "agent_dev", "positive_items": ["B09NXQ86L1", "B07NKT1QQK", "B01MG3QVCK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing a custom electric guitar and need reliable replacement tuning hardware, vintage-style single-coil electronics, and an adjustable chrome bridge to improve tuning stability, tone, and intonation."}
{"candidate_id": "dev-595cb0ef49b8a6b612201c65", "partition": "agent_dev", "positive_items": ["B09NW4LW2Q", "B0BLLFSJH2", "B0BYXQHW7Y"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home podcast and voice-broadcast desk and need a rugged dynamic microphone with strong ambient-noise rejection, mounted on an adjustable boom arm with vibration isolation for clean recordings."}
{"candidate_id": "dev-596440378f1162f4e4b21817", "partition": "agent_dev", "positive_items": ["B09GLFTL8J", "B07X6KWRQB", "B07C97VX25", "B00LOAASPC"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact, transportable recording rig and need stable desktop microphone positioning, protective storage for the mic kit, a rugged rack enclosure for equipment, and a reliable balanced connection between components."}
{"candidate_id": "dev-5968c237268fa351329da8f7", "partition": "agent_dev", "positive_items": ["B0C621L9FB", "B077GH8LF6", "B015HG82EW"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a compact guitar pedalboard for rehearsals and small gigs, with precise chromatic tuning plus warm analog delay and lush chorus for atmospheric, controllable tones."}
{"candidate_id": "dev-59a3eb0db046becfa24fc505", "partition": "agent_dev", "positive_items": ["B01NBIW57O", "B09V91H5XM", "B079TLFL33"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up my guitar for live playing and practice, and need a comfortable adjustable strap with secure attachment hardware plus a way to control string noise and overtones during tapping and recording."}
{"candidate_id": "dev-59a7bed023144e15f7434c04", "partition": "agent_dev", "positive_items": ["B0BSGM6CQ9", "B0BK6MRC3B", "B0759MJRBT"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m refurbishing my Strat-style electric guitar for a Hendrix-inspired surf rock setup and need a compatible reversed pickguard, heavier-gauge strings, and a practice combo amp with spring reverb for dialing in the sound."}
{"candidate_id": "dev-59ac5fd663a842ccff7d42d6", "partition": "agent_dev", "positive_items": ["B000Z0CI7S", "B0928H6VZX", "B00646MZHK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home recording session for guitar and vocals, and need reliable instrument tuning, smoother sustained guitar tones, and replacement elastic support for my studio microphone’s shock mount."}
{"candidate_id": "dev-59aeca911b9a5cb0d5b1869e", "partition": "agent_dev", "positive_items": ["B01BLE4SU6", "B08T2MQ5RV", "B06X9KG3HW"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m producing a short outdoor interview documentary and need a compact setup for clear smartphone audio, focused boom sound in damp conditions, and reliable balanced connections to my recording equipment."}
{"candidate_id": "dev-59cabdd8e91a2bdfdee3f2cf", "partition": "agent_dev", "positive_items": ["B0BTC9YJ2W", "B0BPJ4Q6FJ", "B09DF2S1DH", "B078KTV8L4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my acoustic and electric guitars for a home recording project and need fresh 12-string acoustic and Nashville-tuned electric setups, reliable picking options, and replacement humidifier sponges to keep the instruments properly maintained."}
{"candidate_id": "dev-59eecf8a773cb2438a6418f5", "partition": "agent_dev", "positive_items": ["B078XRM3W4", "B00UCR7GMG", "B00PZGTVAE"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m building a compact guitar pedalboard and need reliable short audio patch connections plus matching DC power links to neatly connect several effects pedals."}
{"candidate_id": "dev-5a286b977f00f21de9c9b88e", "partition": "agent_dev", "positive_items": ["B0BKZ1G3P3", "B000WIRFD0", "B00KMFUCC4"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refreshing my drum kit for regular practice and small gigs, and need durable coated tom heads, a standard tuning key, and a comfortable folding throne for playing and transport."}
{"candidate_id": "dev-5a4e8c724b85d6659288c9d3", "partition": "agent_dev", "positive_items": ["B01GGVOIYA", "B0BQ4HSKC9", "B0BTC9YJ2W", "B074WXM13T", "B081TYHXMH", "B0BKZ22NHL"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m getting my acoustic 12-string and drum kit ready for a small live rehearsal, with fresh guitar hardware, comfortable playing support, dependable drum accessories, cymbal protection, and a cable for connecting a microphone to the sound system."}
{"candidate_id": "dev-5a549b897effdb8bf613a683", "partition": "agent_dev", "positive_items": ["B000BKFLP8", "B095JR6WNF", "B00QATI84A", "B087THD2CL"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a beginner music-class performance featuring a 4/4 cello and need to mark finger positions, safely roll it to rehearsal, and add simple frog-like and bright metallic rhythm sounds for an interactive ensemble activity."}
{"candidate_id": "dev-5a721b059f7171712e672b5e", "partition": "agent_dev", "positive_items": ["B000ZLRT80", "B07MJJ281Z", "B0B3NJ1TDB", "B00LOAASPC"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a compact home studio to record vocals and acoustic parts at my desk, with a stable short mic position, a long balanced connection to my interface, and MIDI connectivity for my music controller."}
{"candidate_id": "dev-5accebcb034eae2db8f22c5d", "partition": "agent_dev", "positive_items": ["B000OR2G8S", "B06XVX7BHJ", "B00LOAAME4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable drum setup for rehearsals and small gigs, and need a non-slip playing surface with carrying storage, protected stick storage, and wireless in-ear monitoring so I can perform securely and hear my mix."}
{"candidate_id": "dev-5ad5eb2f9bca87884b0f4204", "partition": "agent_dev", "positive_items": ["B00IJE6FIA", "B00H35YIJE", "B00WITIHZ6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m filming a guitar performance for social media and need dramatic white strobe lighting, a way to connect the performance audio to my smartphone, and secure strap hardware so the instrument stays safely attached while I play."}
{"candidate_id": "dev-5b152a995304c1a6a59f4139", "partition": "agent_dev", "positive_items": ["B005UMO4EQ", "B0002F50QC", "B000A1HU1G"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my drum setup for practice and performances, looking for two versatile crashes with quick, explosive response in different sizes plus reliable wood-tip hickory sticks."}
{"candidate_id": "dev-5b291a11720fb6b8778dbb3d", "partition": "agent_dev", "positive_items": ["B019JX565C", "B015JTEBN8", "B08DBDD6CM", "B016QUXTZU"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a simple home vocal-recording station and need a condenser mic with sturdy adjustable support, a long XLR connection to my recorder or mixer, and protection against harsh P and B bursts for cleaner takes."}
{"candidate_id": "dev-5b35e3a6d0f9a46c4fbeb9af", "partition": "agent_dev", "positive_items": ["B0051BEIWO", "B079C7K7TD", "B07H9JD4DX"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a compact live-sound rack and need to route a long balanced microphone connection through a 1U panel, with a reliable way to check cables and pin continuity before performances."}
{"candidate_id": "dev-5b767e32acddeabb38dc5e0a", "partition": "agent_dev", "positive_items": ["B01I03GXAO", "B01M7R8BON", "B01DK43HMK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I want to set up a compact patchable synth rig that can receive MIDI from another device and use short audio patch connections for experimenting with modular-style sound design and sequencing."}
{"candidate_id": "dev-5b81b1f473c471be7e3874b1", "partition": "agent_dev", "positive_items": ["B0027UOIR2", "B000BBQPBG", "B07MJVGJSV"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I'm putting together a small acoustic live set and need reliable guitar playing accessories, a way to shape and send my acoustic guitar signal to the PA, and versatile low-volume brush percussion for accompanying songs."}
{"candidate_id": "dev-5b87ff523c652410dc5f4205", "partition": "agent_dev", "positive_items": ["B00BHJC3UI", "B097Q9W8MW", "B08R5GM6YB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my electric guitar for regular gigs and want reliable protection for transport, hands-free carrying support, and a compact tool for quick restringing and adjustments."}
{"candidate_id": "dev-5bc35435773b15837549857c", "partition": "agent_dev", "positive_items": ["B0928FMW91", "B09CF6CL5Z", "B001PZ79LC"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building an electric-guitar pedalboard for expressive leads and experimental parts, with a versatile wah, intelligent harmony and pitch-shifting effects, plus short color-coded cables to keep the signal chain tidy."}
{"candidate_id": "dev-5bc436c7c7cc4ad6462daa31", "partition": "agent_dev", "positive_items": ["B0188WO6OC", "B00TV90MT0", "B07DWY7R2X"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m restringing and setting up my electric guitar at home and need durable coated strings, a finish-safe padded work surface, and adjustable neck support for the job."}
{"candidate_id": "dev-5c1e3337a9e8c7e79e490241", "partition": "agent_dev", "positive_items": ["B0002I8Y6W", "B0B8LYBTXZ", "B0853X3VDC"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m getting ready for a Celtic folk jam and need to restring my eight-string mandolin, keep it secure while playing, and add an easy-to-carry tin whistle for melodies."}
{"candidate_id": "dev-5c264fb8a53593b0d8179e12", "partition": "agent_dev", "positive_items": ["B001LXMXU0", "B071CSRJ1S", "B09ZTJH58K", "B0094HGH70", "B095JMYLPZ", "B093YJ8D74"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up lighting for a small theatrical event and need a simulated flame accent, reliable DMX daisy-chain cabling with proper termination, hardware for mounting rack equipment, and heavy-duty safety supports for suspended fixtures."}
{"candidate_id": "dev-5c31acb71794c0987209c5fd", "partition": "agent_dev", "positive_items": ["B01DN7OC00", "B0BNCMB7YD", "B0045I599A", "B0BVX2RM5N"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a compact home-recording and live-session setup and need to protect a microphone between takes, carry two wireless mics safely, send a portable stereo source into an XLR mixer input, and convert an instrument signal to a balanced, isolated feed for recording gear."}
{"candidate_id": "dev-5c3cd36529ab271bdbe0438a", "partition": "agent_dev", "positive_items": ["B000S5JFZI", "B01AYOJ2X2", "B086QMZG22"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I'm putting together a compact live guitar setup that lets me switch between heavy distorted rock tones and convincing acoustic-style parts while keeping my electric guitar secure onstage."}
{"candidate_id": "dev-5c4a06bd0253c20c429fc277", "partition": "agent_dev", "positive_items": ["B0BSGM6CQ9", "B004MNCLIA", "B07NDLJJSM", "B07J4Y1XZ3", "B0B28TXFWZ", "B06W2NS7RW", "B07WW5PKCP"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m getting my electric guitar and band setup ready for a live show: I need to secure a tremolo, keep the strap locked, restring with heavier-gauge strings, connect reliably, clean the finish, keep picks and a slide handy, and organize spare drumsticks."}
{"candidate_id": "dev-5c63e24e1981cde2eb686e77", "partition": "agent_dev", "positive_items": ["B08M42WR5D", "B0BL8897K3", "B0B8NXV975"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up my electric guitar and want to tune it accurately, measure the nut string height, and carefully recrown the frets for smoother, more consistent playability. What tools should I get for this project?"}
{"candidate_id": "dev-5c786321431e4146c2342292", "partition": "agent_dev", "positive_items": ["B000A82NK2", "B0BKLGS3T4", "B09CLWX7HM", "B07B4ZZVDV"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a tenor saxophone setup for classical and traditional jazz practice, aiming for a dark, clear tone, easy low-register response, secure reed placement, and dependable cleaning between sessions."}
{"candidate_id": "dev-5c9cec83e10a20adb7bc9e47", "partition": "agent_dev", "positive_items": ["B005Q22HV2", "B07SRDVZSL", "B016QUXTZU"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m creating an experimental electronic track at home, layering hands-on analog synth textures with vocals, recording speech clearly without plosive bursts, and monitoring the arrangement accurately while editing and mixing."}
{"candidate_id": "dev-5ccf67e28c0e2c9627846be6", "partition": "agent_dev", "positive_items": ["B09HCRTKL4", "B0BK6S7QF4", "B09SQ4LFTH"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my drum kit for live playing: I need durable, warm-toned replacement heads for a 10-inch rack tom and 13-inch snare, plus a crisp jingle accent that mounts independently on the hi-hat."}
{"candidate_id": "dev-5ce386c7d6b1950351c21287", "partition": "agent_dev", "positive_items": ["B092LF6RLS", "B0B52FBC66", "B098PJL986"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a live band recording and performance rig that needs to route many microphones from the stage to the mixer, handle monitor returns, and cover both short patch connections and a very long venue cable run."}
{"candidate_id": "dev-5d337fd2931a14b8d4490859", "partition": "agent_dev", "positive_items": ["B003B1BOFK", "B0002F7AEC", "B0002F7AE2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a durable electronic drum practice station and need two differently sized practice cymbal surfaces plus a sturdy adjustable arm to mount them."}
{"candidate_id": "dev-5d341df6a35bfc8bda8bc83f", "partition": "agent_dev", "positive_items": ["B09PHKM4BY", "B078X94HNC", "B000GB3HSK", "B09X6HBVBV", "B00SO5Z3DM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a versatile drum kit for practicing and recording energetic rock and metal, with expressive effect sounds, crisp hi-hat patterns, fast double-kick control, and reliable sticks for extended playing sessions."}
{"candidate_id": "dev-5db17891f6e9dbab46c4e8c2", "partition": "agent_dev", "positive_items": ["B01H8E4ZXI", "B0BTC9YJ2W", "B01M5CXH65", "B0BQ4HSKC9", "B01C5TBX68", "B081H694YZ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I'm setting up a small live acoustic-and-electric guitar performance and need fresh strings for both instruments, a stable stand, and the right balanced connections for my vocal microphone, guitars, and PA or mixer."}
{"candidate_id": "dev-5e08a4c35fcf2ce1dc52ff4e", "partition": "agent_dev", "positive_items": ["B07B965L5Q", "B0B8F6LD9F", "B075GKTV88"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring an electric guitar and need parts to rewire its controls, refresh the visible knobs, and restring it for reliable playing and a cleaner vintage-style setup."}
{"candidate_id": "dev-5e1096162c07963cb2c52dfc", "partition": "agent_dev", "positive_items": ["B00IFHCOUO", "B001L8NGJ2", "B005EHILV4", "B09S2VB3KW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small guitar practice and recording station where I can keep my instrument in tune, switch amplifier functions hands-free, play comfortably with secure picks, and blend guitar and microphone audio into my computer."}
{"candidate_id": "dev-5e132930e00d621bafce2b23", "partition": "agent_dev", "positive_items": ["B0BKR2ZM9X", "B0B3VJ3TCJ", "B00H35YIJE"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m refurbishing my Fender-style electric guitar and want a coordinated hardware upgrade with locking tuners for easier tuning, a pre-slotted bone nut, and strap hardware that securely attaches the instrument to its strap."}
{"candidate_id": "dev-5e1c179e3d9f1a85a8df2dd5", "partition": "agent_dev", "positive_items": ["B07LH2G9R9", "B00UI3N5QK", "B0BKR2ZM9X"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m upgrading my Strat-style electric guitar and want smoother tuning stability, a tremolo-block replacement, and clearer highs when I roll back the volume, using compatible hardware and wiring components."}
{"candidate_id": "dev-5e50bd8dcabab746e4b40ce3", "partition": "agent_dev", "positive_items": ["B07CMZVJSN", "B00V8W851A", "B004DN5ZJQ"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m upgrading my Telecaster for heavier rock, and need hotter replacement pickups, a push-pull control for coil-splitting, plus the right tool to crown and dress the frets during the setup."}
{"candidate_id": "dev-5e613c38f23c33189b9bde66", "partition": "agent_dev", "positive_items": ["B078KGLKH3", "B00DKAQGTG", "B09YDBKT7M"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m doing a full care day for my guitar and bass before recording: changing bass strings, protecting the acoustic guitar from dry air, and removing grime from the strings and fingerboards."}
{"candidate_id": "dev-5e644556bdb0826bf72968ea", "partition": "agent_dev", "positive_items": ["B00T77SHA2", "B004STXT2K", "B09ZSKPVVJ"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a compact DJ party lighting rig and need a colorful beam effect that can be controlled through DMX, with reliable connections to the controller and enough IEC reach to power multiple fixtures in a daisy chain."}
{"candidate_id": "dev-5e659b74b3c3750627cf42c6", "partition": "agent_dev", "positive_items": ["B0928HW2P4", "B0BK5CXZBT", "B0BPJ4Q6FJ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m giving my six-string electric guitar a full refresh: clean and polish the delicate finish, condition the wooden fretboard, and restring it for a bright Nashville-style high-strung sound."}
{"candidate_id": "dev-5e6c3ba31aa2374491945ef9", "partition": "agent_dev", "positive_items": ["B01DK1ZGSQ", "B06X9KG3HW", "B08DBDD6CM", "B0C5HSY3C9"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home recording and rehearsal rig with MIDI instruments, microphones, and a mixer, and need reliable connections for syncing the gear, running microphones over different distances, and adapting an XLR output to a balanced 1/4-inch input."}
{"candidate_id": "dev-5e77de9f7cdc0e38ac03809c", "partition": "agent_dev", "positive_items": ["B0BSGM6CQ9", "B09F3BLNWB", "B0B3VHVPX3"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refreshing my American Standard Strat for a heavier-gauge setup and need compatible tremolo hardware, electric guitar strings, and a 10-foot right-angle instrument lead so I can restring, adjust, and test the guitar."}
{"candidate_id": "dev-5e7851b3d05d782f7e2af996", "partition": "agent_dev", "positive_items": ["B0B815P3NB", "B00K39U1NE", "B07CQS5DJV", "B07MJJ281Z"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home recording station to connect a computer, MIDI keyboard, stereo RCA equipment, and 1/4-inch audio gear so I can record, route, and monitor music cleanly."}
{"candidate_id": "dev-5e7d2a597bc1920307b3bc4a", "partition": "agent_dev", "positive_items": ["B077Z9HF27", "B00C86FA0E", "B016QUXTZU"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact desktop vocal-recording setup and need USB audio connectivity, cleaner speech or singing without plosive bursts, and secure vibration isolation for a compatible large-diaphragm condenser microphone."}
{"candidate_id": "dev-5f03958196645218f7a7664a", "partition": "agent_dev", "positive_items": ["B01H7X9NOG", "B0002KZF4Y", "B07FSDZG6B", "B0BR2NW577", "B09R2TMLJR", "B003AYLWCS"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring a vintage-style Strat or Tele by replacing worn frets, correcting neck relief, rewiring the controls for consistent volume and expanded pickup selections, upgrading the tone circuit, and testing the finished setup with precise picks."}
{"candidate_id": "dev-5f1e73db02cbf02f7e835307", "partition": "agent_dev", "positive_items": ["B079211516", "B00IPHSRN2", "B01C5TBX68"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refurbishing my electric guitar for regular rehearsals and gigs, and need to freshen its strings, make the strap connection more secure, and restore reliable pickup switching."}
{"candidate_id": "dev-5fa063ad92cdfcb77b19f17c", "partition": "agent_dev", "positive_items": ["B0C3BSXX6N", "B09RN7GR8F", "B09B45DLQG"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home studio to record high-quality vocals, connect a microphone and other gear, and monitor performances accurately while songwriting."}
{"candidate_id": "dev-5fa68d93646fa6c742433729", "partition": "agent_dev", "positive_items": ["B00V8URXSS", "B079Z72D57", "B093YKC48W"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small mobile karaoke performance and need a portable screen display, a place to hold lyrics or notes, and two wireless handheld microphones so two singers can perform without crowding the setup."}
{"candidate_id": "dev-5fa9d79abc09502fcefc8577", "partition": "agent_dev", "positive_items": ["B09G7GH2FH", "B0771SZT32", "B0007ACTA2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a theatrical funk performance and need bass filter effects, reliable illumination for reading music during rehearsals, and an authentic siren sound for a dramatic orchestral cue."}
{"candidate_id": "dev-5fb69a99b7f38df779d824d5", "partition": "agent_dev", "positive_items": ["B000068OAT", "B001B2SA30", "B0BM71QK8M"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m wiring a small recording studio so I can connect microphones and instruments to a mixer, route eight balanced channels between the mixer and a digital multitrack recorder, and keep longer cable runs quiet and organized."}
{"candidate_id": "dev-5fd5e2d0e5bb6bafabf6e6e6", "partition": "agent_dev", "positive_items": ["B00NR85KN4", "B007MY5BLU", "B09BF8XDF4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my mixed acoustic setup for a recording session and need compatible replacement strings for a baritone ukulele, a steel-string guitar needing long-lasting coated tone, and a classical guitar requiring bright, responsive normal tension."}
{"candidate_id": "dev-5fd5ea7290e420e96d83e3f5", "partition": "agent_dev", "positive_items": ["B07X2LN3FV", "B0BSCFTV2G", "B09RTZ26KV"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up for a blues guitar practice and recording session, with tools for quickly changing keys, adding warm glass-slide tones, and picking fast, clean lead lines with reliable grip."}
{"candidate_id": "dev-5fd7a5470626df6333bf7a8d", "partition": "agent_dev", "positive_items": ["B0B29LK8QD", "B0BKR2ZM9X", "B07DWY7R2X"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my electric guitar for more stable tuning and smoother string alignment, with durable light-gauge strings so it stays reliable and sounds fresh through extended playing sessions."}
{"candidate_id": "dev-5fe0dd575616e139c6306184", "partition": "agent_dev", "positive_items": ["B0BHSG5C3G", "B08R5GM6YB", "B0BTC9YJ2W"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m restringing my 12-string acoustic guitar and need the right extra-light strings, a tool to remove pins, wind and trim them, plus an easy way to tune everything accurately afterward."}
{"candidate_id": "dev-5ffd1c283a8e93185a41eeab", "partition": "agent_dev", "positive_items": ["B075KXPBJ4", "B07X2LN548", "B0BSGM6CQ9"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home session to record and mix my first metal guitar song, using heavier-gauge electric guitar strings, dependable picking control, and a computer or iPad setup for capturing and monitoring the performance."}
{"candidate_id": "dev-6010d3d2ba5a9520490bb703", "partition": "agent_dev", "positive_items": ["B0BG95DG2H", "B08CSNGZNL", "B071KZ892W"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refurbishing my electric guitar for a warmer, more articulate rock tone: I need replacement humbuckers, new tone-circuit components, and a reliable supply of picks for testing and playing the finished setup."}
{"candidate_id": "dev-60233e17ce449f9f5b45e48d", "partition": "agent_dev", "positive_items": ["B07RTSN7Z5", "B097QBGHHB", "B08Z5XSKP8"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live recording rig and need to route many stage microphone inputs to my mixer, split a stereo feed into separate channels, and make short, clearly organized balanced connections between the snake and rack gear."}
{"candidate_id": "dev-608280be46e13e5e91a993b0", "partition": "agent_dev", "positive_items": ["B0B8LZKBN7", "B07Y94MSG9", "B015HG7F3Q"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m getting my bass ready for an amplified bluegrass rehearsal and need a secure hands-free playing setup, reliable instrument-to-amp connection, and a tuner that works for unusual bluegrass tunings."}
{"candidate_id": "dev-60bde0ca606f7b97e46b2cf5", "partition": "agent_dev", "positive_items": ["B074D9DH1K", "B016QUXTZU", "B0BSGM6CQ9"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a portable home recording session for electric guitar and vocals, with fresh heavier-gauge strings, cleaner handheld recordings, reduced wind and handling noise, and clearer vocal takes."}
{"candidate_id": "dev-60f4e6a94866ce1f4b799818", "partition": "agent_dev", "positive_items": ["B086QN18MT", "B01DE4D4LU", "B000YOS29I", "B0B816HZL5", "B00I3TP9JM", "B086QP7WM2", "B0BPJ4Q6FJ"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m upgrading my Tele-style electric guitar and building a compact practice and recording rig: I need a hotter bridge pickup, improved tuning stability, fresh Nashville-tuning strings, replacement control knobs, compact patching, chorus/vibrato effects, and rhythm-based looping for songwriting."}
{"candidate_id": "dev-6107f42d215d5d33e1be0d2e", "partition": "agent_dev", "positive_items": ["B09M7P8SBH", "B09NWCD36N", "B01K1EJQ9U"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my electric guitar setup for regular practice and gigs and want to compare different pick gauges, keep picks conveniently within reach, and have reliable 9–42 strings ready for restringing."}
{"candidate_id": "dev-610cc30a9338b680066ac506", "partition": "agent_dev", "positive_items": ["B001EKECC2", "B0C3BSXX6N", "B017NT392Q"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a compact home studio to record a vocal-and-guitar demo, with a stable adjustable boom for mic placement, a quiet condenser vocal mic, and a USB interface offering guitar amp and effects tones."}
{"candidate_id": "dev-611c2ea952741ed4e6213116", "partition": "agent_dev", "positive_items": ["B00724ZD40", "B0BG95DG2H", "B08T2N1WZR", "B0BCXTXB4Y", "B0B7Z4Z88L"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a beginner electric-guitar practice station with an instrument, comfortable playing support, reliable picks, a safe place to rest it, and a stand for lesson sheets."}
{"candidate_id": "dev-614197ac972db16747ccea6d", "partition": "agent_dev", "positive_items": ["B08NVDW19P", "B08NVVLB16", "B00LOAASPC", "B06X9KG3HW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home podcast and livestream station for clear spoken audio, with a desktop mic setup, XLR connections, and a mixer to combine my voice with music or guests."}
{"candidate_id": "dev-614a4d8cc5284e4dbf0ee6a4", "partition": "agent_dev", "positive_items": ["B01GGUTOFE", "B0861QRRWW", "B07NPZFSXY", "B010SK4TJY"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live vocal performance and need to restore one handheld mic, mount several microphones together, and run them cleanly over a long balanced connection to the sound system."}
{"candidate_id": "dev-61c48b503a47c6049f1a1c65", "partition": "agent_dev", "positive_items": ["B07PSWC1XY", "B017NT392Q", "B07BSSS8VZ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home music-recording station for vocal performances and electronic instruments, needing stable adjustable mic placement, protection from vocal pops, and a long reliable connection between MIDI devices."}
{"candidate_id": "dev-61cab9bfa524f5a01eda8c19", "partition": "agent_dev", "positive_items": ["B0927RSZBS", "B07BZW16WB", "B07FWK4Y9T"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact recording and mixing station and need hands-on DAW control, rack monitoring with integrated power distribution, and a way to connect a stereo RCA source to an XLR input."}
{"candidate_id": "dev-61e082f6c5c24b00344bdde8", "partition": "agent_dev", "positive_items": ["B0BXT41XC6", "B002HFFUGK", "B0077RJA9Q", "B01FIFG4D8", "B0BSGM6CQ9", "B0BT8FDL8B"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing an electric guitar and need heavier-gauge strings, replacement control hardware for volume and tone, a pickup selector and output jack, plus a compact amp to test the rewiring and practice afterward."}
{"candidate_id": "dev-62454cf28b8d272c72fdb5b8", "partition": "agent_dev", "positive_items": ["B0CF797FLB", "B0BKZ22NHL", "B09TXP3FSK"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing for rehearsals and gigs and need reliable standard drumsticks, a natural rod-style option for different sounds, and a durable stick bag with room for accessories and easy floor-tom attachment."}
{"candidate_id": "dev-624d77fcbbd1b65e204de278", "partition": "agent_dev", "positive_items": ["B079DV39Z7", "B004A15B0O", "B0BT2Q355P", "B077GK1J7N"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m building a compact hard-rock guitar rig and need expressive wah tones, a smoother volume-control upgrade, a small high-gain amp stack, and a scratch-safe wrench for installing and adjusting the hardware."}
{"candidate_id": "dev-6261b7c5f6339563d10d142f", "partition": "agent_dev", "positive_items": ["B0064RIB9A", "B0BR2KJYGD", "B005TFB6TU"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I'm setting up a small acoustic performance and need stable stands for two microphones, a secure holder for a wireless mic, and comfortable picks for playing guitar."}
{"candidate_id": "dev-62658bc5039ff8c76e33d5bc", "partition": "agent_dev", "positive_items": ["B0BKZ22NHL", "B0018TIYIM", "B094NDQRJQ", "B07R3S93K8"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I'm setting up a compact home percussion-and-guitar recording space and need something for playing drums, a way to add a cymbal position to my kit, a microphone for overhead or acoustic-instrument capture, and secure wall storage for my guitars."}
{"candidate_id": "dev-6293750ed4544ce525f0d329", "partition": "agent_dev", "positive_items": ["B0002E1NK0", "B0753PSL2D", "B08YNC2D3K"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring an older drum kit for rehearsals and need a warm, durable bass drum setup, replacement hardware for secure tuning, and reliable sticks for testing and playing."}
{"candidate_id": "dev-62d134e5b6664ac997175671", "partition": "agent_dev", "positive_items": ["B07GFH8NTB", "B01DPCONFM", "B0BHSG5C3G"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refreshing my acoustic-electric guitar for home recording and rehearsals, so I need durable light-gauge strings, a simple clip-on tuner for setup, and a dependable cable to connect it to my amp or interface."}
{"candidate_id": "dev-62e15766959ce0958dc73484", "partition": "agent_dev", "positive_items": ["B07Q9JB3CF", "B0BFKPM8MQ", "B000AC6DVS"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m refreshing my acoustic guitar for regular practice and small performances, and need a bright, clear setup with fresh light strings, reliable protection from dry air, and a few pick options to find a comfortable playing feel."}
{"candidate_id": "dev-62f421c2d2fd4d2e7cda889a", "partition": "agent_dev", "positive_items": ["B00C9UMETO", "B00099QVXM", "B0B8YWRJVY"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I'm putting together a high-energy rock stage setup and need a standout electric guitar, colorful strings that pop under UV lighting, and a durable strap for performing comfortably."}
{"candidate_id": "dev-62ff831ab159719d39c2eb7c", "partition": "agent_dev", "positive_items": ["B0BMD5MVSZ", "B07DGW4H5Q", "B07JNKY9T8"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live music rig with a detailed cardioid vocal mic, short connections between guitar effects pedals, and a reliable way to split the audio into appropriate frequency ranges for the PA speakers."}
{"candidate_id": "dev-6321c0c82e96bdb71b7169d9", "partition": "agent_dev", "positive_items": ["B0BXT41VYY", "B08HQQLWWL", "B0BKZ6JR1L", "B00KMA0R38", "B07V46KRD8"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact jazz rehearsal and recording rig, needing smooth warm guitar tone, a responsive replacement for a snare, sturdy folding support for keys or a mixer, and flexible ways to position multiple microphones around the instruments."}
{"candidate_id": "dev-634b667a0efe4c6dfe78a851", "partition": "agent_dev", "positive_items": ["B0002CZZ8I", "B0002F4YCI", "B0006MXJJG", "B008DGT98C"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m building a reliable drum-kit setup for gigs, with sturdy boom and straight cymbal support, an auxiliary closed hi-hat position, and a wheeled, dustproof protective case to organize and transport the hardware."}
{"candidate_id": "dev-6350990eaee7e441b3d4389b", "partition": "agent_dev", "positive_items": ["B0BXX3MYXT", "B07KDYH2DF", "B0BT855NFQ", "B0B8LZKBN7", "B0713R6CY5"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m upgrading my four-string P-J bass for reliable live gigs and need a punchier pickup setup, secure support for its heavier body, quick stage tuning, and a portable combo amp with flexible tone and enough volume."}
{"candidate_id": "dev-63792b9fc8a0b6de6a0dc831", "partition": "agent_dev", "positive_items": ["B018FCZKR2", "B0BJB9NN5C", "B07T3Y7JF5"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m starting electric guitar practice and need a six-string instrument, a comfortable personalized way to play standing, and a padded stand for safe storage between sessions."}
{"candidate_id": "dev-63839c173201b3727fd4d4cb", "partition": "agent_dev", "positive_items": ["B0753PSL2D", "B0002F6VYM", "B07C47QDL9", "B076CBMTF5", "B075MRMFM8", "B0B962GTW6", "B016QVUZP6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing a mixed-size drum kit and need a coordinated head replacement and setup: large-drum and 12-inch tom coverage, a bass-drum porting aid, properly sized 14-inch snare wires, and movable dampers to fine-tune unwanted resonance across the kit."}
{"candidate_id": "dev-639fff44078542a2380ac71d", "partition": "agent_dev", "positive_items": ["B0179A4ILK", "B01K1EJQ9U", "B07GFH8NTB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my acoustic guitar ready for regular rehearsals and small gigs, and need fresh long-lasting strings, an easy way to keep picks nearby, and a reliable solution to secure the strap."}
{"candidate_id": "dev-63a87793ddedc7bbae2ac938", "partition": "agent_dev", "positive_items": ["B0C9NGP88D", "B09CBPCMR2", "B091JCK2GS"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for a small jazz gig where I’ll switch between soprano and alto saxophone and accompany on guitar, so I need dependable reeds for both horns plus a readable clip-on tuner for quick setup and tuning."}
{"candidate_id": "dev-63a932f381eb65bce959c05c", "partition": "agent_dev", "positive_items": ["B00XVMF93M", "B07226MCY6", "B0BT84L827", "B09NWCD36N"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring an electric guitar for rehearsals and small gigs, and need replacement electronics for pickup control, a versatile powerful amp, comfortable adjustable support, and assorted pick thicknesses to find what suits my playing."}
{"candidate_id": "dev-63aa0038ee7c9612eab42656", "partition": "agent_dev", "positive_items": ["B00Y3NG5HM", "B08DBDD6CM", "B0C4XQ496G"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live acoustic performance and need a portable PA arrangement with elevated speakers, adjustable floor stands for two vocal microphones, and the right cables to connect the microphones and sound equipment."}
{"candidate_id": "dev-63c69b6fac9547c6a49c4284", "partition": "agent_dev", "positive_items": ["B00CAKSVTU", "B01I5OLG1O", "B00IR4CU22"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I'm building a compact electronic music setup for live jams and want a keyboard synth with vocoder, a separate polyphonic analog synth for layered leads and chords, plus the correct compatible power supply for the rig."}
{"candidate_id": "dev-63e5f7fe37a602236008a2d5", "partition": "agent_dev", "positive_items": ["B01DK40R3M", "B006WAB01U", "B07PM289SV"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a compact electric-guitar pedalboard and need to power several effects together, connect them neatly in close spacing, and run a reliable short instrument connection to my amp."}
{"candidate_id": "dev-63f5e5d9b2b6412260e37374", "partition": "agent_dev", "positive_items": ["B0C61YVW4K", "B00E93RQQ0", "B0002DV176"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable audio rig for small live presentations and need a padded way to carry the rack, hands-free vocal capture for the presenter, and vibration-isolated mounting for pencil microphones."}
{"candidate_id": "dev-63f93cc7a955c7f783fbf7a4", "partition": "agent_dev", "positive_items": ["B06X9KG3HW", "B0748LD3D8", "B01AAX6KGY"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a small left-handed guitar practice and performance corner: I need to refresh my Ibanez GRX20’s appearance, keep several guitars safely supported, and connect vocal or instrument microphones to a PA without noisy signal loss."}
{"candidate_id": "dev-6410eadf397104d6df14525c", "partition": "agent_dev", "positive_items": ["B0BKZ7M5VG", "B01C5TC236", "B0BSGM6CQ9"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing the strings across my home studio: I need a heavier-gauge nickel set for electric guitar, properly sized strings for a requinto, and a reliable loop-end set for my five-string banjo."}
{"candidate_id": "dev-6414c747cce996bcf6a01510", "partition": "agent_dev", "positive_items": ["B074GZHCWR", "B08QMHRM21", "B06X9KG3HW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable setup for recording a small on-location interview or documentary, with clipped lavalier microphones for speakers, balanced XLR connections, and reliable multichannel audio recording to SD media."}
{"candidate_id": "dev-643a216081c7b02713775b65", "partition": "agent_dev", "positive_items": ["B08J8C3RM8", "B01H8E58SY", "B077SPVPKK", "B0179C3Q20"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a polished portable DJ presentation for a small event, with amplified music and microphone support, flexible XLR signal routing, and lightweight visual screening to conceal equipment, cables, and stand legs while keeping the setup easy to transport."}
{"candidate_id": "dev-6459d687b9bcf62fe5b66b1d", "partition": "agent_dev", "positive_items": ["B0BYXQHW7Y", "B0861QRRWW", "B0C3GQ311W"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a podcast and streaming workspace and need a professional vocal microphone, an adjustable boom mount to position it comfortably, and a long, low-noise XLR connection to my audio setup."}
{"candidate_id": "dev-64607462be37a1acb9acd950", "partition": "agent_dev", "positive_items": ["B01F5RN6F8", "B00L5R5W2I", "B015XLDQD8"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a ukulele practice space and need an easy way to keep it accurately tuned, play comfortably with hands free, and safely rest or display it between sessions."}
{"candidate_id": "dev-6493962c12b8173814ecfa3b", "partition": "agent_dev", "positive_items": ["B0BHSG5C3G", "B08JMQR2JK", "B0002D01K4"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a road-ready system for my Les Paul, with sturdy padded protection for transport, a clip-on tuner for quick tuning, and secure padded stands for rehearsals and gigs."}
{"candidate_id": "dev-64acf313dc101db71e79a85a", "partition": "agent_dev", "positive_items": ["B07T3GZVMD", "B00CIO6BEA", "B00H4PEMM6", "B0BT3594LK"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a kid-friendly home music corner for guitar and junior drumming, with comfortable posture support, tools for changing guitar keys, durable strumming supplies, and a properly sized adjustable seat."}
{"candidate_id": "dev-64f198e2f397b161024ea97b", "partition": "agent_dev", "positive_items": ["B0BXT41VYY", "B06Y6BCX7B", "B0B3NJ1TDB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home recording rig for acoustic guitar and need a flexible, clamp-on microphone positioner plus a long balanced connection so I can place the mic accurately without crowding the stand."}
{"candidate_id": "dev-64f456c85c1d56edecc8a858", "partition": "agent_dev", "positive_items": ["B09TBSNXQK", "B0BCXD2QDB", "B09HL6MZ45"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing a 13-inch snare drum and need durable batter and resonant heads plus wires for a deep, controlled, dry, crisp rock sound that’s easy to tune."}
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{"candidate_id": "dev-653d367dc11922b029e739e4", "partition": "agent_dev", "positive_items": ["B00BG4OGC2", "B06XWLXCFC", "B00646MZHK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a simple electric cigar box guitar and need the electronics to install, controls to shape the sound, an easy way to tune it, and a small amp for practicing."}
{"candidate_id": "dev-65638018e78989a57ec1a703", "partition": "agent_dev", "positive_items": ["B01B15JPCQ", "B06XF6NF5Y", "B0BT9R8MMV"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a comfortable, portable keyboard practice station at home and need adjustable support for the instrument, a suitable seated playing position, and hands-free sustain control."}
{"candidate_id": "dev-658cfe1e70e43e845f21dc42", "partition": "agent_dev", "positive_items": ["B00TVFYMU4", "B07MRS93HC", "B01MZD8O2P"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m refreshing my electric-guitar rig for classic rock rehearsals and recording: I need a durable, articulate way to play, a Marshall-style overdrive voice, and a reliable balanced preamp tube for my amp."}
{"candidate_id": "dev-65c1b1704e092d436594a52b", "partition": "agent_dev", "positive_items": ["B071CV34DT", "B09CSJQ5PQ", "B0BK9ZT28X"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m preparing my guitar for regular gigs and need to clean the strings and hardware, add a durable shoulder strap, and keep it securely attached without replacing the existing buttons."}
{"candidate_id": "dev-65ce17b118f661994360c4df", "partition": "agent_dev", "positive_items": ["B09V91H5XM", "B01K1EJQ9U", "B0BKZ3GCGR"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a practical guitar setup for rehearsals and casual playing, with a comfortable adjustable way to wear the instrument, warm-feeling picks, and a convenient spot to keep spare picks close at hand."}
{"candidate_id": "dev-65d6d08812346eeacc3c83bf", "partition": "agent_dev", "positive_items": ["B0007M1E7O", "B0B9TBDBRJ", "B0B92LPGD2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring my Strat-style electric guitar and need reliable chrome tuning hardware, string guides to improve tuning stability, and vintage-voiced single-coil pickups for clear tone and sustain."}
{"candidate_id": "dev-65f409e32b8758b8bf7facc7", "partition": "agent_dev", "positive_items": ["B000RVWY42", "B0716DK86D", "B07226MCY6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a setup for taking my semi-hollow electric guitar to rehearsals, with sturdy protection for transport, comfortable hands-free playing, and versatile stereo effects for modulation, delay, tremolo, and pitch-shifting."}
{"candidate_id": "dev-6684ca0a0dea986ee3c64e04", "partition": "agent_dev", "positive_items": ["B07KFQLTCP", "B08FC1TJQF", "B089CGQR4L"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a small outdoor interview shoot and need a discreet lavalier setup for clear speech, reliable clothing attachment, and protection from wind and handling noise."}
{"candidate_id": "dev-66850a59d4db50cb68ca89bf", "partition": "agent_dev", "positive_items": ["B08BHZ75M4", "B0002E56IA", "B075PZ7YC1"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home vocal and acoustic-guitar recording rig for demo songs, with a detailed cardioid mic, warm tube preamp and limiter, plus hands-on spacious reverb to give polished takes more depth."}
{"candidate_id": "dev-66b354d09e68e1a1ac86a081", "partition": "agent_dev", "positive_items": ["B01BQMLUFO", "B0B818M2YN", "B0BR2HYQ18", "B0B81D5BB4", "B0B8Z5LTZ2", "B014ZYPT34", "B0BKR2ZM9X"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring a Strat-style electric guitar and need replacement hardware for tuning stability, tremolo setup, secure strap attachment, jack-area finishing, and a pickguard installation, including string guides and mounting screws."}
{"candidate_id": "dev-6702bfefd9bb7c5a82779d16", "partition": "agent_dev", "positive_items": ["B07C7M4DST", "B0B3XPLJ1C", "B074WXM13T"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my Strat-style electric guitar with new controls for easier tone adjustment, a pre-shielded three-single-coil pickguard to reduce noise, and a comfortable two-button strap with a handy pick pocket."}
{"candidate_id": "dev-67068740c9f280ed2e754c81", "partition": "agent_dev", "positive_items": ["B016CKBHNA", "B07TMJX85D", "B0BZX4HHSB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a standard acoustic drum kit for regular gigs, with reliable kick control, a fuller snare sound, and padded transport protection for every drum between rehearsals and venues."}
{"candidate_id": "dev-67139e7f6f8168088412e734", "partition": "agent_dev", "positive_items": ["B01M72N0A6", "B0000365SH", "B07M81HC4C"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m starting beginner violin lessons at home and need a complete practice setup with an instrument and essentials, a height-adjustable stand for reading sheet music, and a way to keep practice quieter around roommates or neighbors."}
{"candidate_id": "dev-6732e63524bc4526dd564745", "partition": "agent_dev", "positive_items": ["B0002D0CEO", "B01K1EJQ9U", "B00N5TH2H2"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up for regular bass practice and small gigs, and need reliable instrument protection plus a convenient way to keep standard picks organized and within reach."}
{"candidate_id": "dev-6740cf8626a6209e5232b02b", "partition": "agent_dev", "positive_items": ["B07W6HPX3G", "B000BZHV7E", "B07NDLJJSM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my drum set for rehearsals and need replacement hi-hat and cymbal fitting parts, an adjustable hardware-mounted arm, and a secure way to keep several pairs of sticks within easy reach."}
{"candidate_id": "dev-6742dfa908d04b5afdd67418", "partition": "agent_dev", "positive_items": ["B0C5HSQKYD", "B0BLLHCQZK", "B005EHINSK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a band rehearsal and small live-performance monitoring system where each musician can control their own mix, with a secure mounting solution and distribution for future expansion."}
{"candidate_id": "dev-675d03d8f07c0db0091a698d", "partition": "agent_dev", "positive_items": ["B0BKZ3GCGR", "B00R57EXLI", "B09XSC5SMJ", "B0002I8Y6W"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a small Celtic folk set and need gear for a tin-whistle melody, restringing my baritone electric guitar, picking accompaniment, and amplifying lead vocals with a handheld dynamic mic."}
{"candidate_id": "dev-6776a3d3b7d5ef839dcccd07", "partition": "agent_dev", "positive_items": ["B07B4ZZVDV", "B07MTFY4TL", "B07CVSKHDV"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a tenor saxophone practice kit with a reliable mouthpiece, comfortable neck support, and a pad-saving cleaning swab for maintenance after each session."}
{"candidate_id": "dev-677d731e847870e93b99685b", "partition": "agent_dev", "positive_items": ["B07B8WL33G", "B0BK9ZT28X", "B08BSFDY99"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a guitar practice and maintenance kit: I need a range of picks for playing, safe care for the finish and fretboard, and tools to clean around the strings and hardware."}
{"candidate_id": "dev-6795cc8693092d03be5ffd5c", "partition": "agent_dev", "positive_items": ["B00M5DW2JW", "B07DWM2XSS", "B07WW5PKCP"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my electric guitar for regular playing and want to clean and protect its finish, replace the strings for a crisp feel, and keep it safely supported between sessions."}
{"candidate_id": "dev-67a592f7b2e31fbe4246eb3d", "partition": "agent_dev", "positive_items": ["B0B31RCL2G", "B00EHTGT6Y", "B0179C3V7K", "B06Y6BCX7B", "B008R2WZ92"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small outdoor interview recording station and need to position a shotgun microphone securely, reduce wind and plosive noise, combine and control the audio, and send the finished signal to a stereo recording device."}
{"candidate_id": "dev-67e48412861d8b24d21e0891", "partition": "agent_dev", "positive_items": ["B019CQA3NG", "1458415287", "B07H9C3D1L", "B01MT1JHJI", "B0B58M32GZ", "B0951C4RGR"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I want to refresh my concert ukulele and practice worship songs with quick chord guidance, easy key changes, comfortable hands-free playing, and gentle strumming control."}
{"candidate_id": "dev-67fb3df3b3a59ad14beb4971", "partition": "agent_dev", "positive_items": ["B09KWWS7DH", "B07DK59QNR", "B075TS3934"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact, portable guitar pedal setup for rehearsals and gigs, with a small board and protective case, a long reliable instrument cable, and a slim 9V power adapter for my pedals that won’t crowd the outlet."}
{"candidate_id": "dev-680f87fd9a55731b7d5789e5", "partition": "agent_dev", "positive_items": ["B0BZX4HHSB", "B096FZXRM4", "B01LF4DBL4", "B097JDV3FW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for a small live drum performance and need padded transport protection for my kit, quieter brush-like rods for controlled playing, and two balanced XLR leads to connect microphones to the PA."}
{"candidate_id": "dev-684c47e815a057aa84c73ad6", "partition": "agent_dev", "positive_items": ["B01NA775TJ", "B07FYYS5ZP", "B07N5GVVRC"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my 6-string electric guitar for live performances and want to fine-tune its string and nut clearances, play songs in different keys without retuning, and perform comfortably with a durable adjustable shoulder strap."}
{"candidate_id": "dev-686a303d4369c6c8673930b2", "partition": "agent_dev", "positive_items": ["B07FS71279", "B0002E3DNK", "B09G5QYZV2"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refreshing my Strat-style electric guitar with bright, longer-lasting strings and matching chrome single-coil covers, then I need a sturdy stand for safe storage between rehearsals."}
{"candidate_id": "dev-68a8b1c835d79cd756751b4d", "partition": "agent_dev", "positive_items": ["B075MP9NM6", "B0BYXQHW7Y", "B09MT5MNM5"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a quiet home podcast and streaming station on my desk. I need a clear USB microphone with flexible pickup options, plus a stable adjustable boom arm and shock isolation to reduce handling and desk vibrations."}
{"candidate_id": "dev-68abda2391e75a745ca98840", "partition": "agent_dev", "positive_items": ["B01H7X9T22", "B08SQ5C1VS", "B008A1BCJE"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring my Gibson ES-335 and want to give it a warmer vintage tone, upgrade the neck and bridge sound, and finish it with a matching tortoise pickguard."}
{"candidate_id": "dev-68c6bc93bfffcf3fe55bc3f2", "partition": "agent_dev", "positive_items": ["B00CIO6BEA", "B00H4PEMM6", "B08T2N25MR"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a compact setup to learn and practice guitar songs at home, including changing keys quickly, shaping clean and overdriven tones, and having durable picks for both strumming and lead playing."}
{"candidate_id": "dev-68d7043bcb6d1a18fbe62c71", "partition": "agent_dev", "positive_items": ["B09VT45772", "B00T4Z77D0", "B07PSWC1XY", "B0C5LYJXLR"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home vocal recording station and need a condenser microphone, stable adjustable boom support, protection from plosive sounds, and an XLR female-to-female coupler for my existing connection."}
{"candidate_id": "dev-68ea24aa7048a383e0fab80f", "partition": "agent_dev", "positive_items": ["B00J2N9CPK", "B07D12DB82", "B019WJ0XSS"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m putting together a complete drum setup for home practice and need cymbals, the stands and pedal to play them, plus replacement mounting parts to keep the cymbals positioned securely and protected."}
{"candidate_id": "dev-69059bb8b3148b59e011ccb2", "partition": "agent_dev", "positive_items": ["B0BFKKVQZT", "B01DE4DPSC", "B0BPJ4Q6FJ", "B0BKZ3GCGR"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my acoustic and electric guitars ready for a small home recording session, so I need fresh strings for both, reliable picks, and a cable to connect the electric to my amp or interface."}
{"candidate_id": "dev-693b32dd38662722797643aa", "partition": "agent_dev", "positive_items": ["B077K4N4J8", "B006KVTSOW", "B0002D0NNE", "B07GY7828V"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing a four-string bass and need hardware for stable string setup, a powerful hum-cancelling StingRay-style tone, compact 2-left/2-right tuners, and a smooth volume or tone control."}
{"candidate_id": "dev-6953b8fda4882c2786699202", "partition": "agent_dev", "positive_items": ["B08TP378B9", "B07C9FX7DH", "B004SD3TTO"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a portable setup for rehearsing and performing electric guitar, with a powered mixer offering multiple inputs and effects, reliable ways to extend 1/4-inch connections, and sturdy protection for transporting the instrument."}
{"candidate_id": "dev-698490f07adec4f933b02e2a", "partition": "agent_dev", "positive_items": ["B074JFRJVZ", "B075BNB77J", "B08DBDD6CM"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m outfitting a drum recording setup for studio sessions and need a multi-microphone kit, an additional focused dynamic mic for punch and isolation, and a long XLR connection to my mixer."}
{"candidate_id": "dev-699ed9d9d10b3930752e2890", "partition": "agent_dev", "positive_items": ["B0BT2YX2LB", "B0BTC9YJ2W", "B09M7P8SBH", "B0C6ZSKLSP"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m getting my electric, resonator, and 12-string acoustic guitars ready for a recording weekend and need suitable replacement strings for each, plus a reliable cleaning and polishing kit for final setup."}
{"candidate_id": "dev-69ae054a4f065c89108e0890", "partition": "agent_dev", "positive_items": ["B0C3PY6TBR", "B0CB98SMQR", "B01DPCONFM", "B08DBDD6CM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a small live music setup and need reliable connections for an electric guitar and dynamic microphone, plus stable adjustable stands to position two speakers for clear sound in a venue."}
{"candidate_id": "dev-69b127f5fd28cba20e02911d", "partition": "agent_dev", "positive_items": ["B09238F4XH", "B01E0NUAL6", "B0C5PRQ9K6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a sound system for a small live music event and need powered mixing with effects, loud passive PA speakers, and a long reliable cable to connect everything."}
{"candidate_id": "dev-69ca37b903fc5983dfc407f3", "partition": "agent_dev", "positive_items": ["B006X7ULV2", "B000NFWYWO", "B000NFUY6W", "B000CKZTCC", "B005EHINSK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a seated amplified viola setup for ensemble rehearsals and need medium-tension replacement strings, a comfortable bench with music storage, and personal control over what I hear in the monitor mix."}
{"candidate_id": "dev-69dd2f5a3d22a34d81db345f", "partition": "agent_dev", "positive_items": ["B075VHF7DQ", "B01LZUQ4OU", "B0012Y2SOY", "B07DX95KP2"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m putting together a small live sound rig and need balanced microphone connections, a multichannel snake for clean stage-to-rack wiring, frequency crossover control, and a powerful stereo amplifier to drive the system."}
{"candidate_id": "dev-69de2aec9ee158e080dd4a01", "partition": "agent_dev", "positive_items": ["B003H918JI", "B007M0HKEA", "B0BKZ5DJZ2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my drum kit ready for rehearsals and upcoming gigs, and need a replacement tom head, dependable sticks for playing, and secure rolling protection for transporting my cymbals."}
{"candidate_id": "dev-69edcc180f54209c8d10fe83", "partition": "agent_dev", "positive_items": ["B00UI79AZG", "B074TJFXB3", "B017DNYX2W"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable setup for recording keyboard performances and vocals at home and transporting it safely to rehearsals, with reliable connections and basic protection for the instrument."}
{"candidate_id": "dev-69f76f72f1581d38e08af1cd", "partition": "agent_dev", "positive_items": ["B00N19LGZ0", "B0002E3GCS", "B01DN7OC00"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for a small live drum performance that I’ll also record, and need gear for playing, safely carrying my cymbals, and connecting a compact microphone output to an XLR mixer or camera input."}
{"candidate_id": "dev-6a46d6ff7ba8ee7310123fc1", "partition": "agent_dev", "positive_items": ["B09PBL98Q4", "B0B1989GQS", "B0864N9HRK"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m building a compact passive electric guitar pedalboard and need smooth foot volume control, space-saving pedal connections, and a long right-angle instrument lead to run cleanly to my amp."}
{"candidate_id": "dev-6a47bdf9dd45b1421d139254", "partition": "agent_dev", "positive_items": ["B0B56Z5G3V", "B06W2NS7RW", "B00EB11QG6", "B00EB11XTQ", "B06XP4XXV1"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing a Les Paul-style electric guitar and organizing its pedal setup, with upgraded gold hardware, pickup switching, secure strap attachment, and a small riser for easier pedal access."}
{"candidate_id": "dev-6a4c7bd21386811f89109d47", "partition": "agent_dev", "positive_items": ["B075R58Q4Y", "B094DRXCRL", "B096W8XKHV"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a small live music and karaoke event and need a complete PA system with full-range mains, a powered mixer for multiple inputs and playback, plus angled floor monitors for performers."}
{"candidate_id": "dev-6a7688668a5ae2b923370481", "partition": "agent_dev", "positive_items": ["B0BPJ4Q6FJ", "B00H35YIJE", "B000EEJH9C"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my electric guitar and bass for a studio session, needing bright high-strung guitar strings, fresh coated bass strings, and secure strap hardware for rehearsals."}
{"candidate_id": "dev-6ab77cb113aa1adefb68e56f", "partition": "agent_dev", "positive_items": ["B07NJ8PL3F", "B00EB11Y72", "B00II5NUKG"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refurbishing a solidbody electric guitar and putting together a compact home rig: I need replacement bridge hardware, Plexi-style distortion, and a small low-watt amp head with tone controls."}
{"candidate_id": "dev-6af05f73180c73004092e0be", "partition": "agent_dev", "positive_items": ["B01LB3T4DI", "B081P4TG49", "B07FYYV6Q9"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for a bluegrass porch jam and need comfortable thumb picks for playing, an adjustable strap for my banjo, and a sturdy padded folding stand to keep my instrument safely nearby between songs."}
{"candidate_id": "dev-6afc51442f0d8200c6998a42", "partition": "agent_dev", "positive_items": ["B006M01WFE", "B0002NRTL8", "B07CQQXQ4T"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small recording studio and need a rack-based setup with enough space for audio gear, clean surge-protected power, and a long XLR connection for a microphone."}
{"candidate_id": "dev-6b13b6fa8244c2a01d4a474b", "partition": "agent_dev", "positive_items": ["B00HYH6EAM", "B000E1TJDE", "B08NXQX781"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my full-size violin for evening practice and need dependable replacement strings, fresh bow rosin, and a compact light so I can read music clearly on my stand."}
{"candidate_id": "dev-6bb7a5705b610d3dd433510a", "partition": "agent_dev", "positive_items": ["B07PSWC1XY", "B00LOAASPC", "B0CB98SMQR"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a small desktop station to record a vocal-and-instrument demo, so I need a versatile dynamic mic for close miking, a stable adjustable short stand, and a clamp-on screen to reduce vocal plosives."}
{"candidate_id": "dev-6bcbcc95b6a8cff6ea9275ce", "partition": "agent_dev", "positive_items": ["B09MK6GSVH", "B00NP8GYVS", "B0BRQ9TQSV"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a playful nature-themed percussion performance and need instruments that can create a frog-like croak, crisp textured rattles, and shaker parts ranging from quiet studio accents to louder group sections."}
{"candidate_id": "dev-6bd2601aadf5bc81846151ed", "partition": "agent_dev", "positive_items": ["B005SUXMEI", "B0BJ3BBTXH", "B015X3CXXA"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up an electric guitar practice rig where I can quickly restring the instrument, keep it accurately tuned from the guitar, and build layered rhythm and lead parts with a simple looper."}
{"candidate_id": "dev-6bf2903f9d12d458a31220e6", "partition": "agent_dev", "positive_items": ["B000AQFH52", "B003YDBG26", "B07FKBFK11"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m recording a live drum-based band demo and need a multichannel mixer for multitrack capture, dedicated low-frequency kick coverage, close miking for snare and toms, and flexible monitor mixes for the performers."}
{"candidate_id": "dev-6bf29c3046d586db60c62c1e", "partition": "agent_dev", "positive_items": ["B003AYJVIA", "B005SGA8DU", "B003AYNEII", "B003AYLSFE"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring a vintage-style Stratocaster and need compatible gold replacement hardware for the bridge, string guidance, and strap attachment points, including the proper mounting screws, to complete a clean, functional setup."}
{"candidate_id": "dev-6c025c48fcae23ceff46f180", "partition": "agent_dev", "positive_items": ["B0006GQ57K", "B00V8URXSS", "B00IPHISW2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for a small live music performance and need a compact stand-based setup for holding lyrics or charts, keeping my instrument strap securely attached, and providing a nearby tray for drinks or percussion essentials."}
{"candidate_id": "dev-6c1a00a277b2e38031b1fafe", "partition": "agent_dev", "positive_items": ["B07439DVY5", "B07FW8DC38", "B078Z1LX5W"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a small home music practice and performance corner for ukulele and violin, with gentle picks for strumming, reliable bow grip, and an adjustable clip-on light for reading sheet music."}
{"candidate_id": "dev-6c24b0d7d06294007988b7b1", "partition": "agent_dev", "positive_items": ["B00N5TH2H2", "B0BKZ3GCGR", "B08R4PFB48", "B0C4XQ496G"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a casual home music rehearsal with steel-drum sounds and bass: I need an approachable percussion instrument, protective carry gear for the bass, picks for playing, and adjustable floor stands for microphones."}
{"candidate_id": "dev-6c2b5e1da4d5c76ae6d391c9", "partition": "agent_dev", "positive_items": ["B09CT1NXDB", "B0C6HZHZJJ", "B0B8TLXHMW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring a vintage Fender amplifier and need period-correct replacement hardware for carrying it, securing the chassis, and refreshing its worn controls."}
{"candidate_id": "dev-6c40550348aa9764a554d66d", "partition": "agent_dev", "positive_items": ["B0016HDP58", "B07N79N4L8", "B0030YEP90", "B000A1HU1G"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m upgrading my drum kit with a mid-sized crash and a quick, punchy splash, and need adjustable boom-clamp mounting options so I can position the new cymbals from existing stands without adding another stand."}
{"candidate_id": "dev-6c491e78c28d41fae0503908", "partition": "agent_dev", "positive_items": ["B073RPD4YQ", "B0B2M1GPR7", "B0098DFNY8", "B0753X8MDJ"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m upgrading my electric guitar for smoother tuning, a warmer neck sound, and refreshed controls, then recording the finished setup at home through a reliable USB interface for demos and practice sessions."}
{"candidate_id": "dev-6c590292181e6dce92fa8b02", "partition": "agent_dev", "positive_items": ["B00JWSDUTE", "B00HV7UN7A", "B0BRQ9TQSV"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable world-music performance setup and need adjustable-volume hand percussion, a tuned ceramic melody instrument with learning aids, and a hygienic, moldable mouthpiece for comfortable extended didgeridoo playing."}
{"candidate_id": "dev-6c783037d69321104f3ea49d", "partition": "agent_dev", "positive_items": ["B0BKZ1G3P3", "B07V3NL6JD", "B0002F7290"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my drum kit for live gigs and need durable, brush-friendly heads, a way to tame unwanted overtones, and a stable, portable setup that keeps the kit anchored onstage."}
{"candidate_id": "dev-6c89c4df8b7d9853708ebb1e", "partition": "agent_dev", "positive_items": ["B01KG3MYZ4", "B0B92LPGD2", "B0B95V41NR"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing my electric guitar setup and need hardware to improve string stability, a replacement 12-inch speaker for my amp, and a short right-angle cable to connect everything cleanly."}
{"candidate_id": "dev-6ca46caf2279c013a543cf60", "partition": "agent_dev", "positive_items": ["B0BDGC832H", "B09G5VVK1R", "B077X1NB4F"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a small electric-guitar performance and need fresh strings, atmospheric water-based fog, and passive full-range sound reinforcement I can connect to an existing amplifier."}
{"candidate_id": "dev-6cd2907c4ac4efa4cafaf763", "partition": "agent_dev", "positive_items": ["B0047FS5MY", "B07C91JT14", "B0C61YQFHH"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small karaoke and DJ party and need several vocal microphones, adjustable reverb for singers, and a portable controller that can mix multiple digital decks with external audio sources."}
{"candidate_id": "dev-6cfbae26f0a799b43f2b1354", "partition": "agent_dev", "positive_items": ["B09NWCD36N", "B01K1EJQ9U", "B0BSGM6CQ9"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my electric guitar setup for regular playing and want heavier-gauge strings, a variety of pick thicknesses to try, and an easy way to keep standard picks within reach."}
{"candidate_id": "dev-6d18cfe5ba109d9e8c3ad1a9", "partition": "agent_dev", "positive_items": ["B07B4WXVTZ", "B00E1P4MXQ", "B07C12JGF9", "B000EEL50Q", "B00C2413V2", "B00356J8KE", "B072DXPHC3"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing an electric guitar rig for a small live performance: I need vintage-style replacement strings, custom and DIY pick options, instrument cleaning care, a secure strap, quiet balanced signal routing to audio equipment, and a cabinet jack plate that supports stereo or mono connections."}
{"candidate_id": "dev-6d59e095cce922c73c773ccb", "partition": "agent_dev", "positive_items": ["B09RJZSQML", "B08BW2TBD7", "B01K1EJQ9U"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact guitar practice setup for home and travel and need a stable way to park the guitar, keep a supply of thin picks handy, and make them easy to grab while playing."}
{"candidate_id": "dev-6d6fc393eca546b2666e698a", "partition": "agent_dev", "positive_items": ["B0BSB9249S", "B091MZPYBQ", "B015JTEBN8"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a portable vocal performance rig for small live shows and rehearsals, and need a sturdy adjustable support, a handheld vocal microphone, and protection from wind and moisture."}
{"candidate_id": "dev-6d781df22ca52e56d1a54b3c", "partition": "agent_dev", "positive_items": ["B09M7F7LFB", "B0107BCV1M", "B09PHGWZH7"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together an electric guitar setup for playing rock and blues and need a versatile hollow-body instrument, light-gauge replacement strings, and secure strap hardware for comfortable playing."}
{"candidate_id": "dev-6d81746488b642493085e536", "partition": "agent_dev", "positive_items": ["B003R7KUL2", "B08XMGNB3W", "B00RVE9X06"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact live electronic rhythm rig and need onboard drum sounds and effects, a long 1/4-inch connection for flexible placement, and a footswitch for hands-free control."}
{"candidate_id": "dev-6dc6ec231efa3c38fc62b8f8", "partition": "agent_dev", "positive_items": ["B079T8Y95V", "B00BLQ0D2C", "B008LGBMNO"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring a Strat-style guitar and need a finished maple replacement neck plus the proper setup for cleanly removing worn frets and installing a fresh, pre-radiused fret set."}
{"candidate_id": "dev-6defe428b5faf560336fda89", "partition": "agent_dev", "positive_items": ["B015G2AFTW", "B0BYJN7JWQ", "B0BZ5KMS85"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m putting together a compact electric guitar setup for home practice and small jam sessions, with reliable playing accessories, a comfortable adjustable way to hold the guitar, and a portable high-gain amp head for gritty rock tones."}
{"candidate_id": "dev-6df7c910f77d2472bd16dc77", "partition": "agent_dev", "positive_items": ["B094XNTSKD", "B06X9KG3HW", "B019NY2PKG", "B09RN7GR8F"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a simple home vocal-recording station and need a stable adjustable mic position, balanced XLR connection, and an audio interface for capturing clean, high-quality vocals into my computer."}
{"candidate_id": "dev-6e19043082ffe33a20019750", "partition": "agent_dev", "positive_items": ["B0B8Z6YPWN", "B01LEF1JPO", "B096K2LZKH", "B07KXHBBGS", "B0BSGM6CQ9"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing my Tele-style electric guitar for dependable practice and performances, and need hardware to secure the strap, improve the bridge and string setup, replace the output jack and nut, and restring it with heavier-gauge strings."}
{"candidate_id": "dev-6e22c3272978be68061a92d7", "partition": "agent_dev", "positive_items": ["B07QDCBRKL", "B07GFH8NTB", "B01DE4DPSC", "B09V1TW1PN"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a reliable amplified acoustic-guitar practice rig with a protective fitted case, long-lasting replacement strings, and a cable with a compact amp for clean or overdriven rehearsal."}
{"candidate_id": "dev-6e23b1655e174de251e00cca", "partition": "agent_dev", "positive_items": ["B004GR9MOI", "B07MCM2DCZ", "B00M28Z8RS"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m preparing for bass gigs and need a secure way to park my instrument between songs, a comfortable strap for playing, and a powerful replacement driver to restore my combo amp’s sound."}
{"candidate_id": "dev-6e51b08f666581cd8fee0239", "partition": "agent_dev", "positive_items": ["B002AT4UJQ", "B002M8JY82", "B00646MZHK"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing my accordion and live music setup and need to keep the instrument accurately tuned, maintain its valves, and support my keyboard or mixer securely at a comfortable playing height."}
{"candidate_id": "dev-6e649a6bef837fc8b10a1df1", "partition": "agent_dev", "positive_items": ["B000L95YC4", "B000BND2Q0", "B00A9VK9G0"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a reliable care and practice station for my full-size violin: I need stable replacement strings, matching rosin for dependable bow grip and tone, and a secure holder to protect the instrument and bow between sessions."}
{"candidate_id": "dev-6e714c592b8504331e616037", "partition": "agent_dev", "positive_items": ["B01M72N0A6", "B07M81HC4C", "B0002F4VUI"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m starting violin lessons and need a beginner-friendly setup for practicing at home, including the instrument and essentials, a way to keep practice quieter, and supplies to clean and maintain everything."}
{"candidate_id": "dev-6e7a5a87dac78d145dd5e72b", "partition": "agent_dev", "positive_items": ["B00AOEW0NC", "B0BM71QK8M", "B00LOAASPC", "B016QUXTZU"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home music-production station to make beats and record vocals, with protected hardware, a long low-noise audio connection, stable desktop microphone positioning, and plosive control for cleaner takes."}
{"candidate_id": "dev-6e85d5b2b0935fe8ccbc8238", "partition": "agent_dev", "positive_items": ["B076DV1W53", "B019JX565C", "B0B52FBC66"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I want to build a small home setup for recording polished vocals and podcasts, using a condenser microphone through a compact mixer with USB connectivity and effects, plus balanced XLR leads for reliable connections and spares."}
{"candidate_id": "dev-6e8f6eb7f6d2fa3e013b9a82", "partition": "agent_dev", "positive_items": ["B00CIO6BEA", "B0BTC9YJ2W", "B00IFOTSJW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my 12-string acoustic guitar for a small performance and need warm, balanced replacement strings, comfortable picks for strumming, and a reliable clip-on tuner for setup and quick checks."}
{"candidate_id": "dev-6ea372522c2d9e75cae8c213", "partition": "agent_dev", "positive_items": ["B0BT32Y1ZW", "B00T3FTEMS", "B00T3GL2XQ", "B07DLC9KYG", "B0B2C6TK2Z", "B0BXT1FWQK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing an outdoor alto sax jazz performance and want a powerful setup I can fine-tune with different reeds, secure and maintain between takes, then record clean video and audio while monitoring the performance through earphones."}
{"candidate_id": "dev-6ea413bc2f22a3b4de342b05", "partition": "agent_dev", "positive_items": ["B0BPLFP5P6", "B0774P2S9J", "B0BXX3MYXT", "B018FCZKR2", "B00NARHNCS", "B0BFXNCQRJ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing my guitars for regular playing and need a safe place to store one, reliable tuning, accurate setup measurements, fresh light nylon strings for the classical, replacement controls for my Tele, and more secure strap attachment."}
{"candidate_id": "dev-6ecf267ed877543b12870db4", "partition": "agent_dev", "positive_items": ["B01DE4DVO0", "B0B8LK7MTH", "B07PPHHG34", "B0BKZ67C9F"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m outfitting a compact home rehearsal corner for guitar and drums, needing a dependable guitar connection, hands-free support while playing, a safe wall-mounted instrument holder, and lighter, responsive sticks for practice."}
{"candidate_id": "dev-6ef28c30504b829481bbcc4f", "partition": "agent_dev", "positive_items": ["B0BGN6Y6ST", "B09HTV1RV3", "B0B4X6TYW5", "B09YSW8QGR"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m building a compact electric-guitar pedalboard and need classic crunch, lush modulation, neat space-saving connections between effects, and a compatible 9V adapter with the correct polarity and enough current to power everything reliably."}
{"candidate_id": "dev-6efdb8154f8366b611df1900", "partition": "agent_dev", "positive_items": ["B0C3LKJXFR", "B08XZH8DTM", "B0B8Z2S4P8"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restringing my acoustic guitar and want a bright, sustaining tone, secure replacement bridge pins, and a scratch-free way to wind the new strings quickly with a cordless drill."}
{"candidate_id": "dev-6f0bb2927afb0676cc636671", "partition": "agent_dev", "positive_items": ["B0BLM2R7FY", "B07N5J3GTB", "B091MZPYBQ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live singing performance and need a dynamic handheld vocal mic, a long cable for connecting it to my audio equipment, and a foam cover to reduce wind and moisture noise."}
{"candidate_id": "dev-6f0cb212e5e784e12e8ce4d6", "partition": "agent_dev", "positive_items": ["B01N6U2EJ1", "B0055E88FA", "B09S3XJJD5", "B076Q57L83", "B00GXMLEO0"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m upgrading my carved-top Les Paul with a Bigsby-style vibrato and need a no-drill mounting solution, compatible low-friction bridge, easier string changes, setup and maintenance tools, plus a wide padded strap for comfortable playing."}
{"candidate_id": "dev-6f0fe8d8abc26d39dd43488e", "partition": "agent_dev", "positive_items": ["B015HG82EW", "B09M7F7LFB", "B0097WDJZA", "B08R5GM6YB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my electric guitar setup for a gig: I need to replace the strings, speed up restringing, tune precisely, and power several effects pedals reliably from one organized setup."}
{"candidate_id": "dev-6f1b70b5dd86b26b357e06cf", "partition": "agent_dev", "positive_items": ["B077GH8LF6", "B002UXS4JO", "B0091WCUZG"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m upgrading my Tele-style guitar and pedalboard for richer, more defined tones. I need a four-way control setup with quality components, a clean preamp boost with adjustable character, and warm analog delay for spacious lead parts."}
{"candidate_id": "dev-6f62e388fe293a1a7209548f", "partition": "agent_dev", "positive_items": ["B093YHKRMD", "B078CYR3NN", "B09NW2VM45"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a small home recording setup for an acoustic cover, with clear vocal capture, handheld jingle percussion, vocal harmonies and effects, and dependable power for recording or livestreaming."}
{"candidate_id": "dev-6f9c1dd3791d7756a83167d4", "partition": "agent_dev", "positive_items": ["B09V91H5XM", "B00IPH8MD2", "B00646MZHK", "B08R5GM6YB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my guitar ready for regular practice and small gigs, and need dependable tuning, comfortable support while playing, flexible pick options, and a compact way to handle restringing and basic string changes."}
{"candidate_id": "dev-6fb7741ee80a70ffa817a39b", "partition": "agent_dev", "positive_items": ["B0016H8S1O", "B01H0PACWI", "B01HCGWS2W", "B01N8RYSWA"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact drum practice and recording station: mount and adjust a hi-hat, connect laptop stereo playback to separate 1/4-inch inputs, and run a balanced output onward to an XLR-equipped audio system."}
{"candidate_id": "dev-6fe4f14b7d627a847c9091d9", "partition": "agent_dev", "positive_items": ["B015X3CXXA", "B0BPLFP5P6", "B09JJ784V5", "B00JL5I70K", "B0C3H69ZJ5"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact solo guitar setup for small live gigs and need reliable height-adjustable speaker support that I can carry easily, plus quick tuning, durable precision picks, and a simple looper for layered accompaniment."}
{"candidate_id": "dev-6fee25419d038e44d88e1019", "partition": "agent_dev", "positive_items": ["B001V5K2S8", "B0002Z2D0I", "B091MZPYBQ"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I'm getting ready for a small ukulele singalong and need soft picks for strumming, a protective way to carry my soprano instrument, and a wind and spit shield for the handheld vocal mic."}
{"candidate_id": "dev-704648f289ddd763c1a27822", "partition": "agent_dev", "positive_items": ["B0B2TND26L", "B00BCO4MBG", "B09HCRTKL4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my drum kit for live rock rehearsals and need a durable, controlled snare sound, a warm and responsive 10-inch rack tom, and a bass pedal setup with sharper attack and better control for fast passages."}
{"candidate_id": "dev-705d943a429a438416098bad", "partition": "agent_dev", "positive_items": ["B0BKZ5F8BS", "B08JMQR2JK", "B01DE4DPSC"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a small band rehearsal and need mellow, smooth strings for my five-string bass, a reliable cable to connect an instrument to the amp, and padded stands to keep the guitars safely nearby."}
{"candidate_id": "dev-70a52971c4c533fa49affda5", "partition": "agent_dev", "positive_items": ["B0B969MPJR", "B07B4WXVTZ", "B007MY5BDI"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a recording session that switches between acoustic and electric guitar, so I need bright, projecting acoustic strings, warm vintage-style electric strings, and versatile picks for exploring different tones."}
{"candidate_id": "dev-70a761c46b85f0ec42a4db10", "partition": "agent_dev", "positive_items": ["B00099QVXM", "B081TYHXMH", "B0BR2KL6QL", "B002PAY3WY", "B0C4XQ496G"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home rock rehearsal space and need an electric guitar, reliable kick-drum control, and adjustable microphone support for vocals and recording gear without taking up much room."}
{"candidate_id": "dev-70c1c4d95073f029d6f4e137", "partition": "agent_dev", "positive_items": ["B0024VWZUG", "B002GIHRMI", "B01DE4DEGK", "B07CQQXQ4T", "B09JFHQXKC"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable rehearsal and performance audio rig that can safely house a large lunchbox amp head, rack-mount a compact mixer, distribute conditioned power, and connect balanced professional audio gear."}
{"candidate_id": "dev-70d9cf5cb4ab4c798aef0aaf", "partition": "agent_dev", "positive_items": ["B01EGYA8WA", "B0BTC9YJ2W", "B09RJZSQML"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing and setting up my 12-string acoustic guitar with extra-light strings, a precise way to check action and saddle or nut measurements, plus durable thin picks for strumming and testing."}
{"candidate_id": "dev-712563f104d90363452b1689", "partition": "agent_dev", "positive_items": ["B000BNI8IW", "B003DJIRZA", "B00E9EC2K4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m starting to learn 4/4 violin and need supplies to find finger positions, prepare for playing, and keep the instrument clean by removing rosin buildup."}
{"candidate_id": "dev-71467e20eca2fa64f7387e9d", "partition": "agent_dev", "positive_items": ["B005JTV358", "B01B1JHEX4", "B00ATPD9T0"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home vocal recording space and need acoustic treatment to reduce room echoes, stable stands for my studio monitors, and a handheld vocal microphone with a cable for recording and singing."}
{"candidate_id": "dev-71a3977fa23a92cdf5c7fd6c", "partition": "agent_dev", "positive_items": ["B0769VKBTZ", "B010E97QG2", "B01N9VNZPO", "B0BXZ59PVD"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small desk-based guitar effects recording project and need a reliable signal path for electric guitar, expressive wah tones, and a talkbox that can feed both my amp and a microphone, plus a stable boom for capturing the processed sound."}
{"candidate_id": "dev-71a73ff2dde55f57ed8409c6", "partition": "agent_dev", "positive_items": ["B0C3Q29DML", "B0B95V41NR", "B006KW37ZW", "B078L11275"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refurbishing my electric guitar and need a secure neck support for the work, upgraded tuning hardware for stable restringing, a replacement volume control, and a short cable for testing the electronics."}
{"candidate_id": "dev-71cb64d4e4cbb39ba06e1d33", "partition": "agent_dev", "positive_items": ["B07T3GZVMD", "B005OZE9SA", "B0938SPCFH"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a comfortable home guitar-recording station and need a USB interface for plugging in my instrument, a long cable to reach it, and an adjustable foot support for proper playing posture."}
{"candidate_id": "dev-72105392450073000453ffd8", "partition": "agent_dev", "positive_items": ["B0BK5CXZBT", "B07T3GZVMD", "B0BSGM6CQ9", "B09R2XFGH4", "B0B8FSCM9L", "B0B95V41NR"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a comfortable electric-guitar practice routine and need supplies for restringing, connecting to an amp, keeping the instrument clean, improving posture, building finger strength, and practicing picking technique."}
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{"candidate_id": "dev-729653faef637498e615b31e", "partition": "agent_dev", "positive_items": ["B089WLQ3B8", "B0B58HH8XN", "B0C3H7SNPQ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m upgrading my Gibson-style electric guitar for versatile tones and safer gigging, while refreshing the existing pickup selector with an amber threaded tip and adding compatible locking strap hardware."}
{"candidate_id": "dev-72a17645279405f16c0d83d6", "partition": "agent_dev", "positive_items": ["B000Y7O1HM", "B00O5ELJ66", "B08NVVLB16"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a small live singing performance and need a durable vocal microphone, adjustable boom support, and several balanced XLR leads to connect everything to the venue’s PA system."}
{"candidate_id": "dev-72a6cb2aff8ca95381ef3d69", "partition": "agent_dev", "positive_items": ["B07GSJNMBQ", "B08ZFQ8GLV", "B017NT392Q", "B07PSWC1XY"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a simple home vocal recording station for singing demos and need a sensitive cardioid mic, stable adjustable positioning, protection from plosives, and the proper 48V power connection."}
{"candidate_id": "dev-72a70f5e36ced386dd9ae116", "partition": "agent_dev", "positive_items": ["B00RYCOHXI", "B09KDXHS4X", "B00TOKTBL6", "B091MZPYBQ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live music and karaoke performance at home and need a reliable way for two singers to use wireless microphones, keep my guitar in tune, protect the mics from breath and wind, and mount one securely."}
{"candidate_id": "dev-72e7ef7e99a348aa9fc42e7e", "partition": "agent_dev", "positive_items": ["B000EEHKVY", "B0BPJ4Q6FJ", "B0BTC9YJ2W"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a studio session to create a rich layered guitar arrangement, so I need warm strings for a 12-string acoustic, bright high-strung electric strings for doubled parts, and a secure adjustable stand for setup."}
{"candidate_id": "dev-730da589993fd25a9b3830db", "partition": "agent_dev", "positive_items": ["B0B9SSR3JT", "B000GGV2DM", "B00062G0RE", "B072C4CZ2R", "B09T7NX5K7", "B07MC4N6P9"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I'm building a versatile percussion setup for recording and live sessions, with a crisp snare, bright ride and crash coverage, quick trashy accents, a compact timbale voice, and both durable medium-weight sticks and lighter nylon-tip sticks for different playing styles."}
{"candidate_id": "dev-7331dc003f4813e92f814860", "partition": "agent_dev", "positive_items": ["B09CTJ3Z4L", "B098KXQJVY", "B08BSFDY99", "B09BF8XDF4", "B08JMQR2JK"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m organizing a small guitar workshop for acoustic and seven-string electric players. I need durable strings for both types, versatile playing and support accessories, and padded resting spots to keep several instruments safe between lessons."}
{"candidate_id": "dev-735e85d6cc972296450c59de", "partition": "agent_dev", "positive_items": ["B00IFOTSJW", "B0BTC9YJ2W", "B01DE4DTAG"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing my 12-string guitar for a small live set and need extra-light replacement strings, quick clip-on tuning, and a dependable long lead to connect it to my stage setup."}
{"candidate_id": "dev-7364c9fc821ffaaaccc48036", "partition": "agent_dev", "positive_items": ["B014PEZVKU", "B00HZH4D04", "B01DZ6FBBI"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m outfitting my electric guitar for energetic rehearsals and gigs, and need a secure strap connection, a durable adjustable shoulder strap, and comfortable picks that won’t slip during hard playing."}
{"candidate_id": "dev-73947549419c3c695d70ed05", "partition": "agent_dev", "positive_items": ["B074JNWHZ4", "B0146YTJOI", "B0179A4ILK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my guitar for regular gigs and want a comfortable weight-dispersing strap, a simple way to keep it securely attached, and convenient polish wipes to remove haze and streaks while preserving its finish."}
{"candidate_id": "dev-73ad659cacfc882bdb24cfce", "partition": "agent_dev", "positive_items": ["B0BYXQHW7Y", "B016QUXTZU", "B08T2N27DG"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a desktop home studio for recording vocals and streaming, and need high-quality USB or XLR audio, cleaner plosive-free sound, and an adjustable boom-mounted microphone setup."}
{"candidate_id": "dev-73e1e4e4d5da8231e052d180", "partition": "agent_dev", "positive_items": ["B005WBH5VY", "B000VTIT7Q", "B015CVTSY0", "B0BLYTPLJ7"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refurbishing my Strat-style electric guitar and need reliable locking tuners, a replacement HSH pickguard, fresh nickel-wound strings, and a tasteful checker inlay to finish the cosmetic upgrade."}
{"candidate_id": "dev-73f2d89d095fad602f867041", "partition": "agent_dev", "positive_items": ["B0BKRT3V34", "B0002F6VZQ", "B07KC4XD22"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact percussion setup for jazz and folk rehearsals, with options for sticks, brushes, and rods, plus hardware to stack cymbals and mount an additional Latin-style block."}
{"candidate_id": "dev-740997aefff906607cfb396d", "partition": "agent_dev", "positive_items": ["B003BLOSGM", "B07DX95KP2", "B004C4UQZE", "B0010CTD5U"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a portable PA for small acoustic gigs, with a rack-mounted mixer, subwoofer and top speaker, multiple microphones, and a phone for backing tracks; I need compatible mounting, cable-routing, storage, and audio-connection gear."}
{"candidate_id": "dev-74232e2700a0264436f4144d", "partition": "agent_dev", "positive_items": ["B01M4HO2S1", "B0023C6H64", "B015M92GZ0"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for a small live acoustic-guitar performance and need replacement bone hardware for the guitar, plus a powerful PA speaker setup with adjustable tripod stands to project the sound."}
{"candidate_id": "dev-747d57c52680465752d7c5db", "partition": "agent_dev", "positive_items": ["B01MSVSA4X", "B01K1EJQ9U", "B00H4PEMM6", "B0002D0CEO"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for acoustic guitar practice and small performances, and need an easy way to transport my gear, quickly change keys, keep picks within reach, and have reliable picks ready to use."}
{"candidate_id": "dev-747e9ac3d3d1f05fc867533e", "partition": "agent_dev", "positive_items": ["B004O1XS00", "B002SW37LM", "B0007ZHWXQ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact merengue percussion setup for rehearsals, with a textured scraper for crisp guiro rhythms and a tunable synthetic-head hand drum that adds warm bass, jingles, and accents."}
{"candidate_id": "dev-7490d8b0bcb9b5afe2beaa84", "partition": "agent_dev", "positive_items": ["B006KW37ZW", "B0B58HH8XN", "B095XZJ99J"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m upgrading my six-string electric guitar for versatile bridge and neck tones, smoother volume control, stronger tuning stability, and dependable strings for rehearsals and recording."}
{"candidate_id": "dev-749b7a8861cb3fe05f46f568", "partition": "agent_dev", "positive_items": ["B079TLFL33", "B08HHGCCLR", "B00HZH4D04"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refreshing my electric guitar for rehearsals and rock performances, with medium-gauge strings for balanced tone, a durable adjustable shoulder strap, and secure attachment hardware so the instrument stays safely supported while I play."}
{"candidate_id": "dev-74ebdb69a1a94cff710f2b31", "partition": "agent_dev", "positive_items": ["B0BKZ5F8BS", "B09RTZ26KV", "B0BPJ4Q6FJ"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m recording a layered studio arrangement and need bright high-strung strings for doubled six-string guitar parts, smooth warm strings for my five-string bass, and precise non-slip picks for articulate rhythm and lead tracking."}
{"candidate_id": "dev-7509f349266e5dcef7dc7b7b", "partition": "agent_dev", "positive_items": ["B075P1J64Z", "B0BKR2ZM9X", "B096K2LZKH"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m refurbishing my Tele-style electric guitar and want easier, more stable tuning, a safer strap connection for playing, and an aged-white pickguard that fits its humbucker layout."}
{"candidate_id": "dev-752cd90df9d83af790f59f23", "partition": "agent_dev", "positive_items": ["B01K1EJQ9U", "B0BKZ3GCGR", "B0B8M5FJ9W"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m getting my guitar setup ready for regular practice and gigs and need a secure way to wear it, a convenient spot to keep standard picks handy, and a supply of comfortable picks for strumming and lead playing."}
{"candidate_id": "dev-7551831de405b334f5317978", "partition": "agent_dev", "positive_items": ["B09BC7S81F", "B08BLDYG6K", "B07GBQ4LGV"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a DIY electric guitar and need a replacement neck, the rear hardware for securing strings through the body, and a warm tube combo amp to test and dial in the finished instrument."}
{"candidate_id": "dev-755eb2efb8a8e6016f44444e", "partition": "agent_dev", "positive_items": ["B07KZ9VXS2", "B0B44VTPS1", "B07C91JT14"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home recording and rehearsal station with several dynamic microphones, a short adjustable stand for close miking, and protective storage for the mic collection."}
{"candidate_id": "dev-75643de5ab580a4fcab68693", "partition": "agent_dev", "positive_items": ["B0002H09OI", "B0727ZFXQZ", "B014PEZVKU", "B07NDHS7FN"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a four-string bass setup for rehearsals and gigs, needing an instrument with protective carrying gear, fresh flexible nickel strings, and secure strap attachment hardware for dependable playing and transport."}
{"candidate_id": "dev-759f2bfa459de607a16d0897", "partition": "agent_dev", "positive_items": ["B000H28NPU", "B09KWWS7DH", "B0BPJ4Q6FJ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m upgrading my electric guitar for a layered studio recording: I want a vintage-style, hum-reduced neck or middle pickup, bright high-strung tuning for doubling parts, and a reliable 20-foot cable to connect cleanly to my amp or interface."}
{"candidate_id": "dev-75b08b8da413cb821a764f2f", "partition": "agent_dev", "positive_items": ["B082CV9SL5", "B00WVO0Z26", "B09BS25NJM"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m looking for an eight-string electric guitar setup for playing and transporting it safely, with a fitted hard case and a secure strap that works with standard strap buttons."}
{"candidate_id": "dev-75c23584e9bee67d639f98b2", "partition": "agent_dev", "positive_items": ["B001ECQOO4", "B0C5LYJXLR", "B016QUXTZU"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a simple home vocal-recording rig and need accessories to connect two XLR-female ends, reduce breath and wind noise around a large microphone, and control plosive bursts for cleaner takes."}
{"candidate_id": "dev-75c828b7ab9f387b905be860", "partition": "agent_dev", "positive_items": ["B08NFKM84R", "B08MVLQZBT", "B0BT2Q355P"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my guitar and need tools to change strings efficiently, tighten awkward hardware without scratching the finish, and precisely fit or polish the nut and saddle."}
{"candidate_id": "dev-75f7e03ac96bdd61d1d42b8a", "partition": "agent_dev", "positive_items": ["B078MGXLVS", "B016QUXTZU", "B0C6H9T5T6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home podcast and video recording station and need clear USB voice capture, reduced popping from P and B sounds, and protection from desk bumps and vibrations."}
{"candidate_id": "dev-7600e14108d49f5aa00d4215", "partition": "agent_dev", "positive_items": ["B000EEHLLS", "B071HYVF8B", "B00LWHC1A2"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m getting my upright bass ready for regular rehearsals and performances and need a simple care setup to keep it stable on different floors, maintain its finish, and improve bow grip and playability."}
{"candidate_id": "dev-76050463b3dce12a81f80b98", "partition": "agent_dev", "positive_items": ["B0983TSLT9", "B071CSRJ1S", "B09ZSKK72G"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a DMX-controlled lighting show for an upcoming event and need reliable connections between the controller and fixtures, plus a directional fog effect with built-in colored illumination for dramatic atmosphere."}
{"candidate_id": "dev-760688eabbd81d37f63dfce6", "partition": "agent_dev", "positive_items": ["B00KMFUCC4", "B0BKZ61YJJ", "B000T04IB8"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home drumming station where I can practice realistic snare patterns comfortably and replace worn snare wires on my drum when needed."}
{"candidate_id": "dev-7606fa24076a240125e08712", "partition": "agent_dev", "positive_items": ["B07DWY7R2X", "B08R5GM6YB", "B07CM4JCYG"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing both my electric and acoustic guitars for regular playing and need long-lasting strings suited to each instrument, plus one handy tool for winding, cutting, and removing bridge pins during restringing."}
{"candidate_id": "dev-760f56a7f4bcfa7c48279c7a", "partition": "agent_dev", "positive_items": ["B0032UYJKW", "B004LG93KC", "B072PQT2DM"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a home guitar recording session and need reliable connections for my microphone and guitar, plus a way to control hiss from high-gain effects while keeping riffs clear."}
{"candidate_id": "dev-76493b3621e43160c4c17ff8", "partition": "agent_dev", "positive_items": ["B000BBOG7Q", "B016QVUZP6", "B00WH57CMK", "B000RW0QM8", "B09V556T1T", "B0B4STBJZW", "B0CF797FLB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a compact jazz drum setup for rehearsals and small gigs, with expressive ride and splash accents, versatile soft playing tools, controlled snare and cymbal resonance, a warm bass-drum beater, and organized transport for accessories."}
{"candidate_id": "dev-76b996fb709ac86c5174d227", "partition": "agent_dev", "positive_items": ["B00BESRB8Q", "B0002D0CEO", "B01DPJRZWS", "B07TDNWYSB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up to learn electric guitar and practice full songs, so I need a playable instrument, flexible effects with rhythm and looping, reliable tuning changes, and comfortable picks for regular strumming."}
{"candidate_id": "dev-76bd4f8173d167a2e42b1f88", "partition": "agent_dev", "positive_items": ["B0BSGM6CQ9", "B0BHG58G2F", "B000EEJJI6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my electric guitar and five-string bass for a band rehearsal and need replacement strings for both instruments, plus an adjustable capo for quickly changing the guitar’s key during practice."}
{"candidate_id": "dev-76bdf5111901f2a3a3ba4030", "partition": "agent_dev", "positive_items": ["B07BWB1JC9", "B0B8FSCM9L", "B0BPKTYTPQ", "B00H4PEMM6"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing my acoustic guitar for a season of daily practice: I need fresh, bright-sounding strings, an easy way to change keys while playing, protection from dry or damp case conditions, and off-instrument exercises for finger strength and calluses."}
{"candidate_id": "dev-76e00382a0323e4b5486d97a", "partition": "agent_dev", "positive_items": ["B0C5BMZ1K9", "B09RN7GR8F", "B09Y1X5BSC"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home recording station to produce and mix my own songs, with a desk-mounted vocal mic, flexible connections for instruments, and both speaker playback and headphones for checking recordings."}
{"candidate_id": "dev-76f8a24f247521c5320ea82e", "partition": "agent_dev", "positive_items": ["B0002DNT5I", "B0002DNUIO", "B001Q3KTH4", "B0014598WQ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a portable DJ and event lighting rig and need a compact rack for my gear, reliable rack power with front lighting, and a stable truss system with clamps for mounting fixtures."}
{"candidate_id": "dev-7714dceca7e4d1c268784c6d", "partition": "agent_dev", "positive_items": ["B09RN7GR8F", "B0C5BMZ1K9", "B06X9KG3HW"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m building a home podcast and livestream recording setup with a desk-mounted vocal mic, real-time headphone monitoring, a USB interface for multiple audio sources, and reliable balanced connections."}
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{"candidate_id": "dev-771c8dc30feddaf2ab53ac9e", "partition": "agent_dev", "positive_items": ["B00HU260SW", "B083R2QB96", "B0BT35T2CT"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my electric guitar and bass for a heavy rock recording and need strings suited to each instrument, plus rigid, sharp picks for precise and fast riffing."}
{"candidate_id": "dev-7741137450d57b5afa2bff01", "partition": "agent_dev", "positive_items": ["B09FSRVQ61", "B08XTVG8KH", "B07Y94MSG9"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m getting my electric guitar rig ready for live rehearsals and need to power several effects pedals, connect everything cleanly, and keep my strap securely attached during playing."}
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{"candidate_id": "dev-7807920efb72ed40af3095cf", "partition": "agent_dev", "positive_items": ["B07V39HVW2", "B0928J8MWV", "B0BT2WN4PK", "B01N8RYSWA"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a reliable drum-kit setup for rehearsals and small gigs, and need a versatile cymbal range, a comfortable height-adjustable seat, and stable, transport-friendly hardware for mounting cymbals and operating the hi-hat."}
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{"candidate_id": "dev-78862aac65afbd92f5fd47b6", "partition": "agent_dev", "positive_items": ["B001LXMXU0", "B0CF797FLB", "B00WJ3KH0Y"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for a small rock gig and need reliable sticks for playing, an organized way to carry spare percussion tools, and a long cable to connect the stage lighting fixtures to the DMX controller."}
{"candidate_id": "dev-7895d43c6acfca5f052af7d7", "partition": "agent_dev", "positive_items": ["B0B8YWPB3K", "B018FCZKR2", "B01K1S6S9W"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m changing the strings and setting up my guitar at home, so I need a stable place to rest it, a quick way to turn the tuning pegs, and a tool for checking string height and making adjustments."}
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{"candidate_id": "dev-79d1c1b6d2f0c4370286c463", "partition": "agent_dev", "positive_items": ["B00WASDYAS", "B0BFKQ9QXD", "B07R3S93K8"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refreshing my home guitar setup and need to safely wall-mount several instruments, replace worn controls on an electric guitar, and restring an acoustic for a brighter, reliable sound."}
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{"candidate_id": "dev-7aacdc512c1d3cbfaf35595d", "partition": "agent_dev", "positive_items": ["B00UZ7JADG", "B00NPAMDQ6", "B091MZPYBQ"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m organizing a karaoke and spoken-word event and need a handheld vocal setup with dependable long XLR connections plus a foam windscreen to reduce wind interference and protect against singers’ spit."}
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{"candidate_id": "dev-7ac3575f96210245b2e037c0", "partition": "agent_dev", "positive_items": ["B0BSGM6CQ9", "B00DKAQGTG", "B07FTVKZB3", "B0C3LJ2J6M"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for a live set switching between acoustic and electric guitar, so I need to protect the acoustic from dry air, refresh the electric’s strings, add natural overdrive, and use one comfortable adjustable strap for both instruments."}
{"candidate_id": "dev-7acc01c24dbb8436d14720aa", "partition": "agent_dev", "positive_items": ["B08PBNXZYP", "B00HB2ZSSO", "B004U1QDL0"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a compact guitar pedalboard for warm, spacious vintage tones, with reliable isolated power, adjustable echo, and classic tremolo for rehearsals and small gigs."}
{"candidate_id": "dev-7ad26919ad84f187797f5fc7", "partition": "agent_dev", "positive_items": ["B07H3F3HJ3", "B01DP0H4N2", "B015JTEBN8"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a small live setup for a mixed acoustic and electric performance and need hands-free vocal or amp miking, long balanced connections to the PA, and clean direct inputs for several instruments."}
{"candidate_id": "dev-7b060ce4c5a9d13bd6e97ae4", "partition": "agent_dev", "positive_items": ["B01BZTGPW6", "B0712262X5", "B00NSETB7S", "B00XAQGWGW", "B074WG217C"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m customizing a compact right-handed four-string electric upright bass for portable performances and need a bass multi-effects pedal, a versatile setup tool, removable fretboard position markers, and replacement Hofner-style control knobs."}
{"candidate_id": "dev-7b428b0567ac948c8b86cf78", "partition": "agent_dev", "positive_items": ["B07R291RQJ", "B0983TPW81", "B086QMZG22"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact electric-guitar pedalboard for playing rock covers, with flexible phase modulation, warm echo repeats, and a strong adjustable distortion sound for solos and rhythm parts."}
{"candidate_id": "dev-7b519d1651c162fc53e2eb1e", "partition": "agent_dev", "positive_items": ["B0002F6OJE", "B00B8QC9O0", "B00IFOTSJW"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a portable setup for a singer-guitarist playing a small live event, with reliable vocal amplification, a microphone connection, and quick clip-on tuning for the guitar."}
{"candidate_id": "dev-7b605cb45d1ebddaec6c49f6", "partition": "agent_dev", "positive_items": ["B07C47QDL9", "B0C61YK5FH", "B01290XS9S", "B0BBP1L9K6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a drum kit for quiet home practice and recording, with full-kit sound reduction, a deeper vintage-style snare tone, and a 5-inch port in the front bass drumhead."}
{"candidate_id": "dev-7b69b4e96a1f2ca85a2511a2", "partition": "agent_dev", "positive_items": ["B015JTEBN8", "B09G9DVTD3", "B016QUXTZU"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a simple home podcast and game-streaming station and need a USB microphone with an adjustable stand and pop filter so my voice is clear and easy to record."}
{"candidate_id": "dev-7b7ad1772947f24fd1132b56", "partition": "agent_dev", "positive_items": ["B0C4SS7MJM", "B0B4F3YQ2K", "B0BSGM6CQ9"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m outfitting my electric guitar for rehearsals and gigs, with heavier strings, reliable picks, and a comfortable adjustable strap for playing standing up."}
{"candidate_id": "dev-7bb1729a34d1534607b29fde", "partition": "agent_dev", "positive_items": ["B002N4ZBE6", "B07Q6L4YMC", "B07D5W5X3Z"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a small blues jam and need to restring my four-string bass, keep its tuning accurate during setup, and add a compact harmonica part for the melody and fills."}
{"candidate_id": "dev-7bb464223f073b56b66fabf0", "partition": "agent_dev", "positive_items": ["B09Y683JGR", "B07Q6L4YMC", "B0919BMVMN"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m putting together a portable electric-guitar pedalboard for rehearsals and gigs, with accurate tuning, enough room for several pedals, quiet reliable 9V power, and a protective case for transport."}
{"candidate_id": "dev-7bcce8b0c3036c16eb8582d0", "partition": "agent_dev", "positive_items": ["B0002F5JHM", "B00HJOTNBC", "B0BG3QZCJN"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m recording a Latin-inspired rhythm track and need percussion for a steady shaker groove, a contrasting lighter accent, and bright handheld jingle hits to add movement and warmth."}
{"candidate_id": "dev-7be1efb1183de167b9b53cf9", "partition": "agent_dev", "positive_items": ["B00CGFRJ2Y", "B07M6B3RDW", "B09G5MLJ79", "B09PBL98Q4", "B078KTV8L4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my guitars and pedalboard for regular rehearsals: I need durable replacement strings, reliable tuning, comfortable picks, humidity maintenance for an acoustic, and compact connectors to link effects without wasting space."}
{"candidate_id": "dev-7be6b26f8bc0d9ee6e797be2", "partition": "agent_dev", "positive_items": ["B00E37VZMI", "B07NX24XGY", "B01H8E58SY", "B0C5LYJXLR", "B015XTFNP4", "B01DK1ZGSQ", "B01M8N618U"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home recording session for vocals and acoustic instruments, and need multiple microphones, ways to route and adapt their connections, accessories to reduce plosives and vibration, plus protected storage for transporting the audio gear."}
{"candidate_id": "dev-7c0d4ee474bd831bc1792a02", "partition": "agent_dev", "positive_items": ["B0BTC9YJ2W", "B08JMQR2JK", "B0BKZ3GCGR"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a small acoustic 12-string practice corner and need supplies for restringing and playing it, plus sturdy padded stands to keep the guitars safely displayed and ready to use."}
{"candidate_id": "dev-7c115a47478820be29ffb897", "partition": "agent_dev", "positive_items": ["B003B09HV4", "B00126HUGS", "B00H03IP34"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my school woodwind ensemble for rehearsal and need supplies to keep clarinet joints moving smoothly, hydrate an oboe double reed, and safely organize flutes, clarinets, and a piccolo between players."}
{"candidate_id": "dev-7c1dab0c6507593d56b301f2", "partition": "agent_dev", "positive_items": ["B00IFOTSJW", "B01K1EJQ9U", "B08BJGBHN7", "B06W2NS7RW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a reliable guitar setup for practicing and playing live, with assorted picks to try, convenient pick storage, accurate clip-on tuning, and a secure way to attach a strap without bulky hardware."}
{"candidate_id": "dev-7c3139c1c43a4f74b38a81ad", "partition": "agent_dev", "positive_items": ["B09SQ2Y148", "B07MJ844DM", "B01M5D3MV6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my Bb clarinet ready for regular playing and need suitable replacement reeds, a way to keep them protected between sessions, and cork lubricant for smooth assembly."}
{"candidate_id": "dev-7c4d9e4037a85872059068a2", "partition": "agent_dev", "positive_items": ["B0BT2Z1DF1", "B0B8YYMMB2", "B0B8Z5SBPZ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m upgrading my electric guitar for reliable drop tuning: I want to refresh the strings, improve tuning stability, and clean and condition the fretboard."}
{"candidate_id": "dev-7c794dd53eb6de668373fb40", "partition": "agent_dev", "positive_items": ["B093YGLS3F", "B017NT392Q", "B0002DNUWK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live music performance and need reliable boom-mic placement plus colorful, sound-responsive wash lighting that can be securely mounted to the venue’s pipe or truss."}
{"candidate_id": "dev-7c81f16665de8aa0e0b7768a", "partition": "agent_dev", "positive_items": ["B09PJ3N73Y", "B07FTVKZB3", "B09V92RNL3", "B0BK9ZT28X"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I'm putting together a setup for regularly playing and transporting my Telecaster-style electric guitar, with secure protection, comfortable carrying, reliable picks, and simple string, fretboard, and hardware cleaning without harsh solutions."}
{"candidate_id": "dev-7c875fcc7ecbc14d25568bf9", "partition": "agent_dev", "positive_items": ["B0BT862N4P", "B01DPCONFM", "B08JMQR2JK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home electric-guitar practice corner and need reliable amplification, a long cable to connect my instrument, and padded stands to keep several guitars safely organized."}
{"candidate_id": "dev-7c9b6ffc2258a230dcdb5e21", "partition": "agent_dev", "positive_items": ["B09MMT45P1", "B08JMQR2JK", "B01D4P2OI8"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact live music rehearsal space and need an adjustable station for my laptop or mixer, secure floor storage for several guitars, and convenient access to drumsticks while playing."}
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{"candidate_id": "dev-7cc7565b94511d3829a793ba", "partition": "agent_dev", "positive_items": ["B07C9FX7DH", "B06XDQTBCJ", "B07NQRGQ3D"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a portable 12-inch guitar speaker cabinet and need a powerful 8-ohm driver plus reliable 1/4-inch connections to reach my amp setup."}
{"candidate_id": "dev-7ce3ddcc0f4a1b12f2fe579b", "partition": "agent_dev", "positive_items": ["B00WRJM9H4", "B07BLM53Z1", "B004MNTIL8", "B0BM71QK8M"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a small live music and karaoke performance, with Bluetooth playback, microphone and instrument connections, flexible long cable runs, and clean balanced links between the mixer and speakers."}
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{"candidate_id": "dev-813b0e79a8679c2abb4acce5", "partition": "agent_dev", "positive_items": ["B01M1767PO", "B01M8N618U", "B0BT9R8MMV", "B06X9YBVXS", "B01MYNCACV"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable live keyboard rig for small gigs and need piano-style sustain, protected transport for a compact mixer and rack gear, balanced audio connections over long runs, and safely sequenced power."}
{"candidate_id": "dev-8148bfad76706b7a7413e7bd", "partition": "agent_dev", "positive_items": ["B07PDCY17P", "B01F5RN6F8", "B07BHJH2Y8"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m getting my baritone ukulele ready for casual performances and need replacement strings, a hands-free strap, and a compact way to carry my picks."}
{"candidate_id": "dev-8178012e8d2c97915eab1f42", "partition": "agent_dev", "positive_items": ["B078CYR3NN", "B0179C3Q20", "B01DYPOBTS"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m organizing a small karaoke and live music performance and need shared wireless vocals, a handheld rhythm accent, and a polished way to hide speaker-stand cables and tripod legs."}
{"candidate_id": "dev-81893722b4e3ee676df379a3", "partition": "agent_dev", "positive_items": ["B001Q3KT5Q", "B09WVFZPLS", "B00RVE9X06"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a small live guitar setup and need a tall adjustable stage stand for gear, a long instrument connection to reach the amp, and durable felt picks for playing."}
{"candidate_id": "dev-81a9a3506eb9e53922a542c3", "partition": "agent_dev", "positive_items": ["B07NFQFHYP", "B0BBPRH136", "B003HGR6VA", "B07W6HPX3G"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m refreshing my compact drum kit for practice and rock grooves, with a responsive practice station, secure bass-drum-mounted accessory placement, a dark trash-crash accent, and reliable replacement hardware to restore my hi-hat."}
{"candidate_id": "dev-81cd1e061ac7202494b2d4ec", "partition": "agent_dev", "positive_items": ["B07CZF27BG", "B0BJB9NN5C", "B018FCZKR2"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up for learning and performing acoustic guitar, and need a quality cutaway instrument with amplification capability, a comfortable personalized way to wear it, and a secure stand for storage between sessions."}
{"candidate_id": "dev-81d81f5ceef371940f7059a2", "partition": "agent_dev", "positive_items": ["B08F7L191S", "B007MY5BDI", "B00CGFRJ2Y"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my six-string acoustic guitar with bright, easy-to-play strings, need a handy tool for removing bridge pins and winding the new strings, and want comfortable thin picks to test the finished setup."}
{"candidate_id": "dev-81fa23504f6428e8d31fc40a", "partition": "agent_dev", "positive_items": ["B0BK6MQF3Z", "B09VT45772", "B06X9KG3HW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I want to set up a simple home recording session for vocals, connecting a studio condenser mic through a USB audio interface with balanced leads so I can capture and mix demos on my computer."}
{"candidate_id": "dev-821c05edf439102a25c94322", "partition": "agent_dev", "positive_items": ["B076BYBXP4", "B075MRMFM8", "B0002GO8NM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing a mixed-size drum setup and need replacement heads for a large-diameter drum and a 10-inch tom, plus an easy way to tame unwanted overtones across the kit for clearer rehearsal and recording sounds."}
{"candidate_id": "dev-823e7544fbb4a874b884cfaa", "partition": "agent_dev", "positive_items": ["B081BVWZR7", "B082Z6P6HP", "B0BKZ6HRQ2"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m refurbishing my six-string electric guitar and need a chrome locking tuning upgrade, fresh long-lasting light-gauge strings, and matching black-and-gold control hardware for a smoother, more stable setup."}
{"candidate_id": "dev-8274b37b5275a2b34665f20b", "partition": "agent_dev", "positive_items": ["B0B5Z7FYNS", "B08P4W7NFP", "B093QWW5TG"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact drum practice station and need lightweight sticks for agile playing, a sweat-gripping alternative for longer sessions, and a mounted holder for quick changes."}
{"candidate_id": "dev-827b136e2e069285f6979a3f", "partition": "agent_dev", "positive_items": ["B000EEHDDY", "B01GMLOKD8", "B00CSK53UC", "B0002GZUTI", "B001MX9K5K"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m refreshing my drum setup for rehearsals and need sturdy adjustable hi-hat support, versatile playing tools for different sounds, convenient storage close by, and small replacement hardware to keep my cymbals mounted securely."}
{"candidate_id": "dev-829f6ad63c07aaff1cb1f45d", "partition": "agent_dev", "positive_items": ["B01LYJMHXV", "B09V91H5XM", "B0BKZ3GCGR", "B09KM9V21Y", "B0731JK5WC"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring a 3/4-size acoustic guitar, including precise saddle placement and clean fret work, then need practical accessories for playing it with a pick, wearing it comfortably, and protecting it during transport."}
{"candidate_id": "dev-82b346be96334722dd0f3b19", "partition": "agent_dev", "positive_items": ["B0BMDF94FH", "B00J4VHTSW", "B08T2MCGV3"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact live interview and music broadcast where I can speak clearly, control uneven vocal levels, and let performers hear their own vocals alongside the main mix."}
{"candidate_id": "dev-82c095813c30982ddb7b8170", "partition": "agent_dev", "positive_items": ["B001W99HE8", "B07F349RSZ", "B07N5J3GTB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my small recording setup for a live drum-and-vocal session, including a replacement 22-inch resonant bass drum head with a microphone port and reliable microphones for vocals and instruments."}
{"candidate_id": "dev-82ccf142b876286f6c0c0ac0", "partition": "agent_dev", "positive_items": ["B09GF6NX3X", "B018WGFXDM", "B0BXBBGTGL"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a DJ/PA rig for use with a compatible power amplifier, needing passive cabinets, long locking speaker connections, and rack equipment to mix and play CD, USB, Bluetooth, microphone, and line audio."}
{"candidate_id": "dev-82ce4975b97b22e026e16204", "partition": "agent_dev", "positive_items": ["B009AQZM30", "B015TBAAT0", "B0BK5CXZBT"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I'm restoring an acoustic guitar and need reliable replacement tuning hardware, fresh long-lasting strings, and a gentle way to clean and protect its finish."}
{"candidate_id": "dev-83068f5a080f1c337877ce6e", "partition": "agent_dev", "positive_items": ["B000UJHHLQ", "B0BPJ4Q6FJ", "B00X7DD6GW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m recording a layered country-blues track with slide guitar, using a bright Nashville-tuned octave part and a compact keyboard controller to program backing instruments and melodies."}
{"candidate_id": "dev-830fb4f4bbfa604eda1ff95a", "partition": "agent_dev", "positive_items": ["B07T24NPX3", "B00IKVCUC2", "B0B66WWHTP"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up sound for a small live panel or performance and need to route multiple stage inputs into a mixer, use two wireless vocalists, and record the clean audio digitally."}
{"candidate_id": "dev-831232f0e7814272f85ea8d0", "partition": "agent_dev", "positive_items": ["B0BK6PMJD2", "B0009FJ1NS", "B0002D0CEO"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m preparing for a small live band rehearsal and need reliable vocal amplification, a fresh set of flexible bass strings, and durable picks for guitar playing."}
{"candidate_id": "dev-831a37046c176e403b14efe3", "partition": "agent_dev", "positive_items": ["B06XWMLT5W", "B004XJMW3M", "B09T7NX5K7"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m putting together a drum setup for rehearsals and small gigs and need a comfortable height-adjustable seat, durable sticks, and a bright, cutting china accent."}
{"candidate_id": "dev-831aca6d53a5669ec3381db8", "partition": "agent_dev", "positive_items": ["B07H3TLKZC", "B07D78R96K", "B009DAHPLU"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m refurbishing an electric guitar and need quieter internal wiring, replacement 250K volume and tone controls, and durable black knobs that fit the new control shafts."}
{"candidate_id": "dev-831dd67f20e8b3fe3fed2ec6", "partition": "agent_dev", "positive_items": ["B00M6SJBZO", "B0BSGM6CQ9", "B0CBSRRLM3"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a compact live electric guitar and vocal setup and need heavier-gauge strings, a stable hands-free microphone support, and an elevated pedalboard arrangement that keeps the stage organized with room for accessories."}
{"candidate_id": "dev-8382e844a68763990fb0fbde", "partition": "agent_dev", "positive_items": ["B0BG5X3PYS", "B0BGPKPSNR", "B0BB118LN7"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my electric guitar for a home recording session, so I need to fine-tune its floating bridge, connect it reliably to the audio setup, and mix and record the performance with multiple inputs and effects."}
{"candidate_id": "dev-83a2f4c60256f27e5b0f66b2", "partition": "agent_dev", "positive_items": ["B008A87Y94", "B0002E2VA6", "B09HL8TQTF"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my drum kit for a classic rock rehearsal, with punchy low-end heads for the toms and kick plus a sturdy way to mount an additional tom to expand the setup."}
{"candidate_id": "dev-83a9f103534a51067d2b80e0", "partition": "agent_dev", "positive_items": ["B07KYX3S8X", "B00IGG9ODO", "B07ZTRZT7D"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a compact home songwriting setup where I can program parts in my DAW, keep my guitar accurately tuned with practice timing, and improve its tuning stability for recording."}
{"candidate_id": "dev-83dcd0f7d8e32c083201a598", "partition": "agent_dev", "positive_items": ["B09Y1X5BSC", "B004Y2YCFE", "B07CYRYQ8G", "B0775CBC5R"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m restoring and recording a vintage-style electric guitar: I need to check and set the neck accurately, install a warm P-90 bridge sound, capture the instrument through a multichannel interface, and monitor the finished tones clearly in my home studio."}
{"candidate_id": "dev-842afb79524d5276c59ec6ec", "partition": "agent_dev", "positive_items": ["B075S57D14", "B0179A4ILK", "B00UL49CRW", "B07C91JT14"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a small live band performance and need a vocal and instrument microphone setup, a portable powerful bass combo, reliable strap security, and a replacement string retainer to improve bass tuning stability and reduce buzz."}
{"candidate_id": "dev-84332a5f8436132dd5348ab0", "partition": "agent_dev", "positive_items": ["B09R72Y5G6", "B01M5CXH65", "B0B816HZL5"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I'm preparing my Telecaster for live rehearsals and need precise, durable picking, replacement hardware to reduce tuning issues and sympathetic noise, plus a balanced cable to connect it with my pro audio gear."}
{"candidate_id": "dev-8457465a6a1587f1759b4be4", "partition": "agent_dev", "positive_items": ["B01LXXWTSV", "B07GZ3WMZ5", "B0BKT23CC7", "B097RG897C"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a home sound meditation practice with a soothing beginner-friendly flute, gentle tones for playing a crystal singing bowl, chakra-focused tuning exercises, and safe organized storage for my tuning forks."}
{"candidate_id": "dev-8468d2468b4077d71b82643b", "partition": "agent_dev", "positive_items": ["B00G4TWO3M", "B09V91H5XM", "B0179A4ILK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a dependable setup for carrying my bass to rehearsals and gigs, with weather-resistant padded protection, a comfortable adjustable shoulder strap, and a simple way to keep the strap securely attached while I play."}
{"candidate_id": "dev-84692e55338fd345c1578e01", "partition": "agent_dev", "positive_items": ["B08JMQR2JK", "B0002D01K4", "B0B8M5FJ9W"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I'm preparing my Les Paul for rehearsals and gigs and need a secure playing setup, rugged protected transport with room for accessories, and several padded places to set guitars down safely."}
{"candidate_id": "dev-8474a58580da24054e77fac1", "partition": "agent_dev", "positive_items": ["B084T3Q4J4", "B01K1EJQ9U", "B00724YM7E", "B0BZ5QTMKT"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact home guitar rehearsal and recording setup: I need secure hands-free playing, expanded storage for several instruments, quick access to picks, and a stable low-profile microphone position for vocals or amplifiers."}
{"candidate_id": "dev-84d578dcd20a8fb0c8ee5161", "partition": "agent_dev", "positive_items": ["B0B95V41NR", "B06XB3FQKB", "B07JL1KFT3"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact electric guitar pedalboard for rehearsals and gigs, with a compressor, a short patch connection between pedals, and a long cable to reach my amp."}
{"candidate_id": "dev-84f563172f2545c8b9ccabac", "partition": "agent_dev", "positive_items": ["B09PJ9NRV2", "B09PCBYT6T", "B0BYTMCLZ5", "B083KJPCVV"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m upgrading my electronic drum kit for rehearsals and small performances, and need an expressive cymbal, a quiet mesh playing surface, reliable connections, powerful amplification, and comfortable sticks for practicing and playing live."}
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{"candidate_id": "dev-852c3b67f90ec565fa94958d", "partition": "agent_dev", "positive_items": ["B01KZHP5IE", "B07NSWD8BR", "B07BLZX73S"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a portable outdoor DJ booth for a party and need reliable amplified music, an elevated speaker setup, and a clean illuminated facade that conceals cables while packing away easily for transport."}
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{"candidate_id": "dev-858e646feb0038dd133d4f3c", "partition": "agent_dev", "positive_items": ["B071YMYXHS", "B0C3LFLQRP", "B00Q1V40QC"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable setup for performing piano and synth parts at small gigs and rehearsals, with a full-size weighted keyboard, stable adjustable folding support, and compact amplification that can handle vocals or other inputs."}
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{"candidate_id": "dev-8651b17dc966f7c2d57d69ba", "partition": "agent_dev", "positive_items": ["B075MPFFRV", "B08N636GN1", "B01ATV0HXY"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m upgrading my guitar rig for detailed, overdriven rock tones: I need a 16-ohm replacement speaker for my amp, reliable stage tuning, and a compact true-bypass chorus effect for adding depth without taking up much pedalboard space."}
{"candidate_id": "dev-8656c0fd4cb88aa96c0a1203", "partition": "agent_dev", "positive_items": ["B0BFKQ9QXD", "B08R5GM6YB", "B0BSGM6CQ9"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m restringing both my acoustic and electric guitars for a weekend setup and need suitable strings for each, plus one practical tool to wind, cut, and remove bridge pins."}
{"candidate_id": "dev-866487770ecfc62810b44111", "partition": "agent_dev", "positive_items": ["B09R2XFGH4", "B0BPJ4Q6FJ", "B0BTC9YJ2W", "B07CYRYQ8G"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m recording a layered guitar demo with a 12-string acoustic foundation and Nashville-tuned electric parts, so I need fresh strings, durable picks, and enough inputs to capture the instruments cleanly in one session."}
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{"candidate_id": "dev-86fcef771b2fd270c9d4ed12", "partition": "agent_dev", "positive_items": ["B07DLBC99X", "B0C39H86Q1", "B019NY2PKG"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live duet performance and need two rugged vocal mics, long XLR-to-quarter-inch connections to the sound system, and an adjustable boom stand for hands-free positioning."}
{"candidate_id": "dev-871aecf29e7c559aea363f4e", "partition": "agent_dev", "positive_items": ["B00UB0DJIE", "B098PKQ3GK", "B06X9YBVXS"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable drum-miking setup for gigs and recordings, with enough channels for a long stage run and a protective rack case for transporting the gear."}
{"candidate_id": "dev-87a3d8b7441d60cff9436246", "partition": "agent_dev", "positive_items": ["B07HKYJSB9", "B07MMQDCVJ", "B07CG93JXC", "B095BZJ9YQ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring my five-string Jazz bass and need compatible hardware for an adjustable bridge, neck and bridge pickups, a refreshed control area, and replacement volume and tone knobs that are straightforward to install."}
{"candidate_id": "dev-87a6272e48acd9a399bc34ed", "partition": "agent_dev", "positive_items": ["B00L1LL7DQ", "B000EENO2S", "B0009RHAT8"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m organizing a violin practice and small performance setup with quick on-instrument pitch checking, a secure place to hang it from my music stand, and a locking stand for safe storage between sessions."}
{"candidate_id": "dev-87a6d545be130d784a02769f", "partition": "agent_dev", "positive_items": ["B003LZ2IT2", "B001W99HE8", "B00LOAASPC", "B005OZE9SA", "B07NKRZ1KQ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home studio for recording guitar and vocals, with a safe way to hang my guitar, stable desktop microphone positioning, plosive control for singing, and a USB interface to capture everything cleanly."}
{"candidate_id": "dev-87c311f3482eac701b058c47", "partition": "agent_dev", "positive_items": ["B0771PMLFX", "B07N5HJ327", "B0002EB5FS"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a percussion rig and need to add a mounted cowbell while precisely tuning the drumheads for consistent sound."}
{"candidate_id": "dev-87d58f7e2e610c452932b106", "partition": "agent_dev", "positive_items": ["B078KTV8L4", "B08BJGBHN7", "B01K1EJQ9U"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a reliable acoustic guitar practice kit with assorted picks to try different tones, an easy way to keep them nearby, and supplies for maintaining safe humidity during dry weather."}
{"candidate_id": "dev-87d8b40d0e2efd9b89f6bdcd", "partition": "agent_dev", "positive_items": ["B07C9N62YY", "B00N4ZHQ14", "B013TCCDBE", "B0C6HZ2BJ4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact rehearsal and recording setup for my Strat and other string instruments, with a fuller bridge tone, quick key changes, dependable picking control, and safe space for several instruments between takes."}
{"candidate_id": "dev-87f22cf54f645d3558834cbe", "partition": "agent_dev", "positive_items": ["B0BKZ61YJJ", "B004A8ZNC8", "B00CGFRJ2Y", "B003VYBD7G", "B01KMYYJ3M"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home music rehearsal space with safe guitar wall storage, dependable guitar accessories, quiet realistic drum practice, quick drum tuning, and a small strobe for performance-style sessions."}
{"candidate_id": "dev-88029e66edecc3fd420b6f46", "partition": "agent_dev", "positive_items": ["B0BFKKVQZT", "B0BSGM6CQ9", "B00646MZHK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my acoustic and electric guitars for a recording project and need suitable replacement strings for both instruments plus a reliable clip-on tuner to get them precisely in tune."}
{"candidate_id": "dev-8808a73a6ba5355299b700d0", "partition": "agent_dev", "positive_items": ["B0B89ZSYS7", "B08T2MZVCJ", "B07JKNG4NV", "B00NPAMDQ6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home gaming and podcasting station and need a broadcast-quality vocal mic, quiet desktop arm, long XLR connections, and real-time audio mixing with vocal effects and soundboard playback."}
{"candidate_id": "dev-886404d0fad0a747a1b7ba7d", "partition": "agent_dev", "positive_items": ["B09BMTCQC2", "B0C3LJNL3G", "B00YJ5C46K"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a small acoustic ukulele-and-vocal session and need hands-free shoulder support, a microphone suitable for both singing and ukulele, plus convenient stand-side storage for picks and a drink."}
{"candidate_id": "dev-887d56cfd61bfbe648c7e8e2", "partition": "agent_dev", "positive_items": ["B019JX565C", "B0C3H5VPZK", "B06X9KG3HW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home songwriting station to record clear vocals through my audio setup, keep the keyboard protected between sessions, and have reliable balanced connections for microphone use."}
{"candidate_id": "dev-889dbff31417d42570767d7a", "partition": "agent_dev", "positive_items": ["B0BHSG5C3G", "B00IKVCVNK", "B0002MDTVS"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing a portable setup for a small live ensemble: I need to keep charts at eye level, tune string instruments quickly, and send several stage microphone lines cleanly to the mixer."}
{"candidate_id": "dev-88a667bc24e9bebafda6ef1e", "partition": "agent_dev", "positive_items": ["B08PFDQ2QS", "B077ZLDSQY", "B01M4HO2S1", "B0BJ3BBTXH", "B019MIPZ8M"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I'm getting my acoustic and Telecaster/Stratocaster-style electric ready for regular rehearsals: I need replacement nut and saddle parts, improved playing comfort and posture for the acoustic, faster restringing for either guitar, and fitted protective transport for the electric."}
{"candidate_id": "dev-88cdce9bc56a3fd91b8c51db", "partition": "agent_dev", "positive_items": ["B0032UYJK2", "B0032UYJKW", "B00HZZ60T8"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a classic rock and metal electric guitar setup for rehearsals and small gigs, with reliable picks for fast, aggressive riffs, a short connection for the amp area, and a longer lead so I can move around while playing."}
{"candidate_id": "dev-8915fd24bc26acc55d6a938f", "partition": "agent_dev", "positive_items": ["B095CBL6FY", "B0BMD5MVSZ", "B09ZTJH58K"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live-event system and need to measure and equalize the room, route frequencies correctly to loudspeaker drivers, and safely terminate the 3-pin DMX daisy chain."}
{"candidate_id": "dev-8965a805596ec7aaba20988e", "partition": "agent_dev", "positive_items": ["B09V91H5XM", "B0BK5CXZBT", "B00EM5UOE6"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m putting together a simple setup for practicing electric guitar at home, including a versatile small amp, a comfortable adjustable strap for playing standing up, and something gentle for keeping the instrument’s finish clean."}
{"candidate_id": "dev-896c2ca8872c0852aebcfa84", "partition": "agent_dev", "positive_items": ["B07CQS5DJV", "B00PR74NXG", "B00X8MTF8A", "B094DRTH5M"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable rehearsal and recording setup that can securely hold my audio gear, route multiple microphone signals, connect powered speakers, and send high-quality audio and MIDI to my computer."}
{"candidate_id": "dev-896ef654e5d8190ca967997b", "partition": "agent_dev", "positive_items": ["B0002CZV9Q", "B003YKBLR4", "B00A3DGWJM"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m building a flexible live guitar rig and need a reliable 15-foot stage cable, an easy way to switch between effects or signal paths, and an analog delay with tap tempo for spacious, adjustable ambience."}
{"candidate_id": "dev-89709a519cb55847754feea7", "partition": "agent_dev", "positive_items": ["B085RTZN3G", "B0C281RFPJ", "B0C284Z9RG"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact desk podcast station and need a plug-and-play USB microphone with headphone monitoring, protection from plosive speech sounds, and an adjustable arm for positioning it comfortably."}
{"candidate_id": "dev-8989007b2154f7f71b30ba11", "partition": "agent_dev", "positive_items": ["B0812B26TN", "B0BCW884JL", "B07JNKY9T8"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a home music-recording setup for vocals and Les Paul-style electric guitar, with low-latency computer connection and monitoring, plus sturdy protection for transporting and storing the guitar."}
{"candidate_id": "dev-89892893484767e04f03f6fc", "partition": "agent_dev", "positive_items": ["B0BPJ4Q6FJ", "B01DPCONFM", "B00IFOTSJW"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up my electric guitar to record doubled Nashville-tuned parts for a 12-string effect, so I need suitable light strings, an accurate clip-on tuner, and a long cable to connect to my amp or interface."}
{"candidate_id": "dev-898d80f051ef34ac13803f60", "partition": "agent_dev", "positive_items": ["B08C7DKSJW", "B0BXD4SLGL", "B0BHSHCV39"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a desk-based podcast recording station and need a stable adjustable microphone mount, an easy way to identify which XLR cable belongs to each channel, and comfortable over-ear headphones for monitoring."}
{"candidate_id": "dev-89b10c02f06aac9f7463bf3e", "partition": "agent_dev", "positive_items": ["B0BKZ2BPGS", "B0BK6S7QF4", "B09HL6MZ45"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my drum kit for versatile live and studio playing: I need a responsive clear resonant snare head, a coated snare batter head with controlled overtones, and balanced clear heads for my 10-, 12-, and 14-inch toms."}
{"candidate_id": "dev-89d699f8c00c8c80a428f32e", "partition": "agent_dev", "positive_items": ["B09BF8XDF4", "B08R5GM6YB", "B07JZQBNDG"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m restringing my acoustic guitar and recording a performance directly to my computer, so I need medium acoustic strings, one tool for winding, cutting, and removing bridge pins, plus a USB condenser microphone for capturing the guitar and vocals."}
{"candidate_id": "dev-89e0fc901ecc16999f3cb04b", "partition": "agent_dev", "positive_items": ["B06X9HFWPK", "B00IWWZAM6", "B00KMA0R38", "B005JTV358"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home music-production station for Ableton Live, with hands-on mixer and effects control, a full-size keyboard for playing virtual instruments, sturdy adjustable support for the keyboard, and stands to position my studio monitors."}
{"candidate_id": "dev-8a38c70ccdb9c0a8d0e9e387", "partition": "agent_dev", "positive_items": ["B0BT2Q355P", "B08T2DMFKD", "B0BXT6TM6N"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m doing a careful setup and repair session on my string instrument, so I need a safe padded work surface with neck support and versatile tools for adjusting hardware, controls, jacks, and tuning components without scratching the finish."}
{"candidate_id": "dev-8a50a903af9699c18d0a2f8f", "partition": "agent_dev", "positive_items": ["B07C637QCK", "B00BESRB8Q", "B018FCZKR2", "B09NWCD36N"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact setup for practicing and recording acoustic and electric guitar at home, with a safe place to park the instrument, reliable tuning, easy key changes, and a variety of pick feels to experiment with."}
{"candidate_id": "dev-8a61439d868c9d45af359f27", "partition": "agent_dev", "positive_items": ["B07CXK6MDQ", "B003IEQ63K", "B0919HG8S7"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m giving my electric guitar a complete refresh: restring it, accurately check and level the neck and frets to eliminate buzzing, then test the improved playability and tone through a small tube amp."}
{"candidate_id": "dev-8a947f760aa961b7f5437152", "partition": "agent_dev", "positive_items": ["B01BLE4SU6", "B01MROS266", "B019NY2PKG"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m recording dialogue for an outdoor short film and need a moisture-resistant directional microphone, a tall stable boom setup, and a battery-powered recorder that can capture clean professional audio on location."}
{"candidate_id": "dev-8aa1123b01adbe0347a69c7a", "partition": "agent_dev", "positive_items": ["B007MY5BDI", "B00IFOTSJW", "B00CPLODUU", "B08BJGBHN7"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refreshing my six-string acoustic guitar for a small performance and want brighter strings, an easy way to tune accurately, quick key changes without retuning, and assorted picks to find the best feel and tone."}
{"candidate_id": "dev-8acf371e2fef72126982de5b", "partition": "agent_dev", "positive_items": ["B00P0HHNJO", "B0768R4GHS", "B01C6FBM8A"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable guitar practice setup for playing songs anywhere, with comfortable hands-free support, quick key changes, and enough amplification for clean or overdriven sound."}
{"candidate_id": "dev-8ad9ed30530192a8a8c62d9b", "partition": "agent_dev", "positive_items": ["B07C484BHP", "B004WDQ5GE", "B0727LTC1N"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable folk-music duo and need a compact squeezebox and bright mandolin, plus a matched pair of condenser microphones to capture detailed acoustic performances at home or small live sessions."}
{"candidate_id": "dev-8ae4ff0c4ea8c764e61853fc", "partition": "agent_dev", "positive_items": ["B00RVE9X06", "B09RHNXJMW", "B00IPHSRN2", "B09YDBKT7M"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m outfitting my electric guitar for regular practice and gigs: I need a reliable connection to an amp, cleaner for the strings and fingerboard, secure strap attachment, and durable picks."}
{"candidate_id": "dev-8b0f107ac859da3ac1adc2f2", "partition": "agent_dev", "positive_items": ["B01I191T56", "B07J5FVQNT", "B07CRK35NG", "B093YKLWVN", "B00CPLODUU"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing my six-string acoustic guitar for regular playing: clean and condition the fretboard and body, replace a worn plain string, add scratch protection, and transpose songs without retuning."}
{"candidate_id": "dev-8b33de693beee3cdb971739a", "partition": "agent_dev", "positive_items": ["B07FYPBL6K", "B095XCZXNQ", "B0002GX7XY"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m getting my acoustic guitar ready for rehearsals and small gigs, and need a padded way to carry it, hands-free support while playing, and durable picks for strumming and picking."}
{"candidate_id": "dev-8b4781dde918eb8476283a7f", "partition": "agent_dev", "positive_items": ["B09YX9FL4B", "B00LOAASPC", "B00L6C8PN0"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact smartphone video recording station with a desktop microphone stand, a way to connect my 3.5mm camera mic to my phone, and wind protection for recording outdoors."}
{"candidate_id": "dev-8b816665bf9b524b45af175a", "partition": "agent_dev", "positive_items": ["B0B2C6TK2Z", "B0BSCFTV2G", "B01AS86K6G"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m creating a portable guitar tutorial for beginners, with an easy way to mark chord fingerings, quickly change the instrument’s key, and capture clear outdoor audio while monitoring my playing."}
{"candidate_id": "dev-8bc87f62f172f87628671ec9", "partition": "agent_dev", "positive_items": ["B01LSHMR86", "B00GC2F0UK", "B07MJVGJSV", "B00BESRB8Q", "B0C5PRQ9K6", "B01M69KU15", "B0BT9R8MMV"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a compact live acoustic/electric guitar and MIDI-keyboard performance: I need to shape guitar tone, connect cleanly to an amp, sustain keyboard notes, keep guitars capoed in tune, power several pedals, and hold my laptop or notes at a comfortable height."}
{"candidate_id": "dev-8bd5480b7bfd1bb311919976", "partition": "agent_dev", "positive_items": ["B0002FP1DY", "B07B4ZZVDV", "B07NDFJDBV"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a post-playing care routine for my tenor saxophone and need flexible tools to draw moisture from the bell, tone holes, pads, bore, and gooseneck, with drying support I can leave in or store with the instrument."}
{"candidate_id": "dev-8c0ee1708b8d584af9ababd8", "partition": "agent_dev", "positive_items": ["B076DGQ45Z", "B0C5NZ2RRH", "B00145EVJ6", "B003FW0IHA"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a drum-recording station and need to capture kick, snare, toms, cymbals, and vocals clearly, reduce room spill with a transparent drum barrier, provide clean two-channel microphone gain, and condition power for the studio gear."}
{"candidate_id": "dev-8c425cb72924801ff80dcd28", "partition": "agent_dev", "positive_items": ["B001N4BHS6", "B0BLLHCQZK", "B004J9WSD0", "B0014598WQ", "B01M5CXH65"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact live-sound rack and need balanced signal routing, a short studio interconnect, rack power with convenient lighting, a secure mount for a personal mixer, plus cable management and blank panels for a tidy finish."}
{"candidate_id": "dev-8c7796428c3f505f4f65d3c5", "partition": "agent_dev", "positive_items": ["B07C91JT14", "B015JTEBN8", "B08DBDD6CM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live acoustic performance and need several dynamic vocal or instrument mics, reliable XLR connectivity, and an adjustable collapsible stand for flexible placement."}
{"candidate_id": "dev-8c78a8b2f5d93d561a26010f", "partition": "agent_dev", "positive_items": ["B097BG4N5T", "B0762RWRTW", "B00U28HYNQ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact electric guitar rig for rehearsals and small gigs. I need a foldable way to safely park my instrument, quiet isolated power for several pedals, and hands-free delay-time control that works with different delay units."}
{"candidate_id": "dev-8c9663d810e1ad16db1eddf1", "partition": "agent_dev", "positive_items": ["B00ABLE59K", "B00TV90MT0", "B07F19P3CV"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m upgrading my six-in-line electric guitar by replacing the neck humbucker and installing locking tuners, and need a safe, stable way to support it while I work."}
{"candidate_id": "dev-8cae8d7a345afd2f30bcdf39", "partition": "agent_dev", "positive_items": ["B09H1JQ8L5", "B07BLM53Z1", "B07N5J3GTB", "B08DBDD6CM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live acoustic guitar-and-vocal performance and need reliable ways to tune the guitar, connect it to an amp, and run the microphone to a mixer, with enough cable length for flexible stage placement."}
{"candidate_id": "dev-8cbb6e62e5fb0f7209861afe", "partition": "agent_dev", "positive_items": ["B003URZWLW", "B0BKZ61YJJ", "B09PGW1W7R"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a quiet home drum-practice setup to develop consistent hand technique and bass-drum footwork, with realistic rebound for both stick exercises and single- or double-pedal practice."}
{"candidate_id": "dev-8cc5e52be3c3b15cadf0ac0e", "partition": "agent_dev", "positive_items": ["B00J1T5BLY", "B09P3ZVLV8", "B07DWRNL54"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refurbishing my five-string Precision-style bass for recording and need long-scale coated strings, replacement electronics for a wiring upgrade, and a short balanced cable to connect the signal chain to my mixer."}
{"candidate_id": "dev-8cca55f85d50623fd8035077", "partition": "agent_dev", "positive_items": ["B01MSAID6I", "B07NM6C3S7", "B08SM2SDG2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable bass rehearsal rig with versatile effects, wireless instrument connectivity, a way to play backing tracks from my phone through an amp, and durable storage for transporting the wireless gear."}
{"candidate_id": "dev-8d4d28cedfbe3d6b5ea71cfe", "partition": "agent_dev", "positive_items": ["B015X273TA", "B082L5BKXQ", "B0BLLF6ZCS"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a reliable guitar performance rig with secure strap attachment, expressive volume swells, and the proper heavy-duty power connection for my amplifier."}
{"candidate_id": "dev-8d610bb3664275af38b19064", "partition": "agent_dev", "positive_items": ["B0BPKTYTPQ", "B075MCRFYZ", "B0B8P1YW7L"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a reliable guitar setup and need compact pedal connections, an easy-to-read clip-on tuner, and maintenance-free humidity control to protect the instrument in its case."}
{"candidate_id": "dev-8d8ba69b72d6ac650877e328", "partition": "agent_dev", "positive_items": ["B0002CZQUK", "B078YMWXMH", "B07DXBXLLG", "B01MCULR8E", "B00DRKKAB4", "B01H8E4EL6", "B07T8LY8P6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing a small live-music stage and need colorful UV-capable lighting, a replacement moving-head lamp, secure rigging, a kick-drum microphone with organized storage, and speaker components to strengthen and repair the PA system."}
{"candidate_id": "dev-8d8e1d4d96abd2769e25a8c8", "partition": "agent_dev", "positive_items": ["B07FYJ7ZLJ", "B01DK7SZOW", "B00724YM7E"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a compact acoustic jam setup and need a way to store several guitars, amplify an acoustic instrument without permanent modification, and play comfortably with an adjustable shoulder strap."}
{"candidate_id": "dev-8dce6df3ca162636c6a52b35", "partition": "agent_dev", "positive_items": ["B01DK40R3M", "B0742RB7JK", "B0B8M5FJ9W"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up my electric guitar rig for live gigs and need compact cables for a tightly spaced pedalboard, one adapter solution to power several effects, and a secure strap that works with my guitar’s existing strap pins."}
{"candidate_id": "dev-8ddfb3c2146ba6d6120c2f0c", "partition": "agent_dev", "positive_items": ["B003AXB4Q8", "B0BTC9YJ2W", "B00IPH8MD2", "B0BPJ4Q6FJ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing my guitars for a recording project: I need to refret one instrument, restring a six-string electric for Nashville-style high tuning, restring a 12-string acoustic with warm, light-gauge strings, and have assorted picks for tracking different parts."}
{"candidate_id": "dev-8e0dfc1b72a91fe8b0445060", "partition": "agent_dev", "positive_items": ["B015JTEBN8", "B08DBDD6CM", "B07BLM53Z1"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a simple home recording session for guitar and vocals, and need hands-free microphone positioning plus the right connections for my microphone and instrument."}
{"candidate_id": "dev-8e2275710c1cb15e174e751a", "partition": "agent_dev", "positive_items": ["B07TJB33WP", "B091G24NXR", "B09DRMF6H9"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a small jazz-meets-hip-hop performance and need reliable baritone sax reeds, a simple two-source mixer for blending the sax with backing tracks, and accurate monitors for rehearsing and balancing the set."}
{"candidate_id": "dev-8e2fcf7bddc8cdb5218ea506", "partition": "agent_dev", "positive_items": ["B0002KZ6LQ", "B09JMYM88H", "B074JNWHZ4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a small rehearsal setup where I’ll switch between bass and guitar, so I need a comfortable, secure strap, an EQ pedal for shaping the bass sound, and a sturdy stand that safely holds both instruments between songs."}
{"candidate_id": "dev-8e3c7fd794a93effe78f5189", "partition": "agent_dev", "positive_items": ["B08DM9NFLH", "B09HJ3FH7S", "B09WW1X2NB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a preschool music-and-mindfulness corner where small groups can explore hand percussion, safely display and store a guitar on the wall, and begin or end activities with a calming, sustained tone."}
{"candidate_id": "dev-8e60aedf4b7a2b4bf0eb5608", "partition": "agent_dev", "positive_items": ["B0BP3MNJKN", "B015JTEBN8", "B08DBDD6CM", "B09VT45772"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home rap recording station and need to capture clear vocals, keep the microphone securely positioned, connect it to my recording setup, and program drum patterns and beats from my computer."}
{"candidate_id": "dev-8ea9f8af5c9008c89ec94eb2", "partition": "agent_dev", "positive_items": ["B00NARHNCS", "B07BQVJY7W", "B0BCXKFMKD", "B0BKR2ZM9X"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing my three-single-coil Stratocaster and want a coordinated hardware refresh, including more secure tuning, new pickguard and matching control and tremolo plastics, plus a precise tool to measure and set the string action."}
{"candidate_id": "dev-8eb660e9c628b4ea4124da00", "partition": "agent_dev", "positive_items": ["B014T6KIFM", "B015XF3WBK", "B01IFIEHPM", "B0B5GX87XQ", "B016P20UC4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a reliable electric-guitar setup for rehearsals and small gigs: I need fresh bright strings, warm overdrive, better pick grip, a compact powered monitor with inputs, and spare true-bypass switches for repairing or customizing pedals."}
{"candidate_id": "dev-8ec406f66a6df0e74dab3931", "partition": "agent_dev", "positive_items": ["B07YMM3JP1", "B07PXDF197", "B0BKKLR2Y8"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m making a home demo with my 12-string guitar and need quick, secure key changes, comfortable picks for detailed strumming, and a simple way to record the performance and MIDI into my computer."}
{"candidate_id": "dev-8ec4550d2add13006f055f9d", "partition": "agent_dev", "positive_items": ["B07DLC8CQZ", "B07DWY44X8", "B0BPLFP5P6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my mandolin ready for a performance and need fresh long-lasting strings, an accurate clip-on way to tune it, and a capo that works cleanly on the neck for changing keys."}
{"candidate_id": "dev-8ef1e295dabe955f33f1108a", "partition": "agent_dev", "positive_items": ["B002N4ZBE6", "B076VHDK96", "B0B4SHB5T3", "B004DAM4CK"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m putting together a portable blues-harp setup for practicing and casual playing, with diatonic instruments in different keys, a compact six-hole option for extra tonal variety, and a snug pouch to protect and carry the standard ten-hole harps."}
{"candidate_id": "dev-8ef4e04d7c1facbf28c96627", "partition": "agent_dev", "positive_items": ["B01IG68ZGU", "B008VD5YN6", "B075NRT7LJ", "B0B81VP83F", "B0B8Z5LTZ2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m rebuilding a Tele-style electric guitar and need replacement body hardware, a three-way control setup, six matching headstock tuners, a stable bridge, and secure strap attachment points for a cohesive playable upgrade."}
{"candidate_id": "dev-8f0ebc516c74c9109d0ea62e", "partition": "agent_dev", "positive_items": ["B005SURLUO", "B09G5QS1VD", "B0BPKH4HB2"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m refreshing a small guitar practice setup and need secure hands-free support for my instrument, heavier-gauge electric strings for a powerful, clear tone, and light-tension nylon strings for a classical guitar. Help me find compatible options."}
{"candidate_id": "dev-8f3931671ec8bfffd755f4d4", "partition": "agent_dev", "positive_items": ["B0BL34JMKZ", "B07BT2DQYT", "B09M7CRWH3"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m refreshing my classical guitar for a small performance and want a warm, comfortable nylon setup, a replacement for one worn bass string, and an easy way to change keys quickly during songs."}
{"candidate_id": "dev-8fca125ab44bba796cb23c23", "partition": "agent_dev", "positive_items": ["B0002F78PI", "B01LW9JEWQ", "B09Q3ZMMYS"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact live electronic percussion rig and need a stable tripod speaker setup, a way to mount my sound module to the hardware, and a right-angle clamp to secure the rack components neatly."}
{"candidate_id": "dev-8fcbb0b69ab83c50fa854ab6", "partition": "agent_dev", "positive_items": ["B09PGYLXM5", "B0CB98SMQR", "B00LOAASPC"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home recording station to capture my chromatic harmonica performances, with an instrument microphone securely positioned at the right height on my desk."}
{"candidate_id": "dev-8fd656c907e0b1dc6f80e4bd", "partition": "agent_dev", "positive_items": ["B00CT2XJTG", "B06XCBYK2J", "B000AAGM0M"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I want to learn and practice anime theme songs on a 12-hole ocarina, with accessible sheet music plus reliable tuning and tempo support so I can improve my playing."}
{"candidate_id": "dev-8fe8a9990d3fa4b7ce64a03a", "partition": "agent_dev", "positive_items": ["B0002E3FB0", "B0B817NZFB", "B0BPJ4Q6FJ"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up my six-string electric guitar for recording doubled Nashville-tuned parts, and need fresh bright strings, reliable picks, and a compatible 9V power adapter for my Cry Baby pedal."}
{"candidate_id": "dev-9013b9ccd1c34d9551df82c5", "partition": "agent_dev", "positive_items": ["B0731KPCCZ", "B00CIO6BEA", "B0BTC9YJ2W"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my 12-string acoustic guitar and need a warm, balanced setup with reliable bridge hardware and durable picks suited to heavier strumming for rehearsals and small performances."}
{"candidate_id": "dev-901c75b76159d3f3ccaf05cf", "partition": "agent_dev", "positive_items": ["B08WB9W24X", "B07FDQ9P1J", "B073RQ53T3"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable setup for playing tenor ukulele on the road, with a resonator instrument, untethered suitcase-style amplification, and a reliable clip-on tuner so I can stay in tune while performing."}
{"candidate_id": "dev-905600ea3923dcd0ba0d98fa", "partition": "agent_dev", "positive_items": ["B07GBPF914", "B0B69VXJ6G", "B08BJGBHN7", "B0BHSG5C3G"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restringing and setting up my acoustic guitar for bluegrass practice, so I need durable bluegrass-gauge strings, a variety of picks to test, reliable clip-on tuning, and a convenient way to wind the tuning pegs."}
{"candidate_id": "dev-906fab5431e74fc233849028", "partition": "agent_dev", "positive_items": ["B0179C3Q20", "B09WV1TH1R", "B0BQ4HSKC9"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a polished atmosphere for a small club event and need a compact fog effect, a reliable microphone connection, and a way to hide speaker-stand cables and legs."}
{"candidate_id": "dev-90ba8cc25ffc495b71fb072d", "partition": "agent_dev", "positive_items": ["B09TBSNXQK", "B07T1L3V24", "B00COBH0R4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing a 13-inch acoustic drum setup for a practice space: I need to add a mounted tom, refresh the snare for a drier, crisper response, and securely install fabric acoustic treatment."}
{"candidate_id": "dev-90e87ebe214269ae5d8d7d4a", "partition": "agent_dev", "positive_items": ["B00LOAASPC", "B0BR2KJYGD", "B00145EVJ6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact desktop podcasting station and need a stable adjustable microphone setup for a wireless mic, plus reliable centralized power protection with multiple outlets and voltage monitoring for the equipment."}
{"candidate_id": "dev-90ecf25d66cd2d04647ae35e", "partition": "agent_dev", "positive_items": ["B07MZ6XF6P", "B07B9TLLY1", "B0009RHAT8"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a dedicated violin practice area at home and need reliable replacement strings, a secure stand for my instrument, and protection for the floor beneath my sheet-music stand."}
{"candidate_id": "dev-9105ff5ce35e76ff49ccce34", "partition": "agent_dev", "positive_items": ["B00IFOTSJW", "B08JMQR2JK", "B074WXM13T"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m outfitting a small guitar practice and performance area with easy tuning, hands-free playing on a two-button guitar, convenient pick storage, and padded stands with security straps for keeping multiple instruments ready."}
{"candidate_id": "dev-912dd5e1eae55660689a0755", "partition": "agent_dev", "positive_items": ["B0C359TJJ4", "B0002DNUWK", "B001W99HE8"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small indoor live music show and need a reliable way to mic an instrument, support adjustable overhead or side lighting, and securely attach fixtures to a portable truss without permanent installation."}
{"candidate_id": "dev-912ffb8558085153675089b1", "partition": "agent_dev", "positive_items": ["B0BYXQHW7Y", "B0B89ZSYS7", "B07JKNG4NV"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a professional home streaming and podcasting station with a securely positioned broadcast microphone, hands-free adjustment, real-time audio mixing, voice effects, and instant soundboard playback."}
{"candidate_id": "dev-914659b100701ad90e933066", "partition": "agent_dev", "positive_items": ["B0C5RTNHKN", "B09ZT1NMR1", "B01KDK4UTI"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m outfitting a small live music stage and need a replacement 12-inch bass speaker, programmable DMX lighting control, and long-lasting, odorless fog for atmospheric effects during performances."}
{"candidate_id": "dev-91522b9173e7b54e76ffc8d2", "partition": "agent_dev", "positive_items": ["B00RVE9X06", "B017NT392Q", "B0BLJSQF7R", "B0019335UO"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a compact home studio to record vocals or guitar through a quality preamp, trigger drum parts with a USB pad controller, and keep my microphone and instrument connections stable and easy to position."}
{"candidate_id": "dev-91d0c166d486b86e7cab06b7", "partition": "agent_dev", "positive_items": ["B0002D0CEO", "B0B6P55RBN", "B01K1EJQ9U"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable guitar practice setup with comfortable standard picks, a way to keep them within reach while playing, and a folding stand for sheet music or a thin book."}
{"candidate_id": "dev-91da6109dcda4cd32cdaf784", "partition": "agent_dev", "positive_items": ["B0BKR2ZM9X", "B06XZYD4NJ", "B00NB1HAEE", "B0B92LPGD2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m rebuilding a left-handed Tele-style guitar and need a comfortable replacement neck, stable locking tuning setup, proper string guidance, and a durable jack connection to finish the instrument."}
{"candidate_id": "dev-91e3139f86c678be7c3f61a6", "partition": "agent_dev", "positive_items": ["B0BLYHRGCK", "B001W99HE8", "B01N97JSTH"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a simple alto sax recording and practice station: I want a richer, easy-blowing mouthpiece, clear instrument sound capture, and a secure way to mount my smartphone on the microphone stand for video."}
{"candidate_id": "dev-92097509ef98fa1920e42dca", "partition": "agent_dev", "positive_items": ["B09V91H5XM", "B01DPCONFM", "B07T65GWFV"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m putting together a beginner-friendly setup for practicing and playing a compact right-handed electric guitar, with a long cable for connecting to an amp and an adjustable strap for comfortable standing practice."}
{"candidate_id": "dev-92210eb7f8a29327edbad64f", "partition": "agent_dev", "positive_items": ["B074WXM13T", "B08R5GM6YB", "B00IFOTSJW"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m getting my guitar ready for practice and need a way to restring it, tune it accurately, wear it securely while playing, and keep my picks handy."}
{"candidate_id": "dev-926496cb89c87e7b1ee91b3e", "partition": "agent_dev", "positive_items": ["B093YKC48W", "B08DBDD6CM", "B091MZPYBQ"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m organizing a small outdoor speaking and singing event and need a simple setup for two wireless handheld performers, a reliable connection to the sound system, and protection against wind and moisture during use."}
{"candidate_id": "dev-926c07b981d028fcfb8a9c98", "partition": "agent_dev", "positive_items": ["B00CGFRJ2Y", "B0CBSSC46G", "B000P5OULA"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up my 12-string acoustic for live playing and need a natural-sounding passive way to send it to an amp or PA, an easy way to change keys, and comfortable thin picks for strumming and picking."}
{"candidate_id": "dev-9292d5aaf22424a13f660de9", "partition": "agent_dev", "positive_items": ["B07MZYNZ1C", "B07N5J3GTB", "B015JTEBN8"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a comfortable home singing-and-keyboard rehearsal station with hands-free vocal support and an adjustable padded seat for long practice sessions."}
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{"candidate_id": "dev-9323e3603c38e24450eabb7b", "partition": "agent_dev", "positive_items": ["B0C3LHXDSH", "B071F8FP2R", "B00B5LFEMC"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for small ukulele performances and rehearsals, and need a padded way to transport my instrument, a secure stand for setting it down between songs, and an adjustable microphone stand for singing or announcements."}
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{"candidate_id": "dev-934f2dbebc734ac7ed437ae8", "partition": "agent_dev", "positive_items": ["B07TMTKLQZ", "B0B29N7VC8", "B095XZJ99J"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my home guitar corner and need to restring and improve the tuning of my electric guitar, replace its worn top nut, and safely display several string instruments on the wall."}
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{"candidate_id": "dev-937d254333856384a91df323", "partition": "agent_dev", "positive_items": ["B0002D00FK", "B093YKLWVN", "B09G5KLKX2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring my electric guitar for a blues performance and want to clean and condition the fretboard, restring it for a warm vintage tone, and play harmonica hands-free while I perform."}
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{"candidate_id": "dev-943a2b0870a29d3f39d95388", "partition": "agent_dev", "positive_items": ["B07B8WL33G", "B0BK9ZT28X", "B07CTDDZJM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my guitar ready for a performance and want to clean and protect its finish, condition the fretboard and strings, and experiment with different slide materials to explore contrasting tones."}
{"candidate_id": "dev-9444f7d02b2f9eb861b9e454", "partition": "agent_dev", "positive_items": ["B07FZ7RDM8", "B00GG20DJ4", "B01M0K7STH"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact live setup where I switch between keyboard and guitar, so I need sturdy keyboard support, hands-free expressive control for synth parts, and an adjustable extra-long strap for comfortable guitar changes."}
{"candidate_id": "dev-947689635a6b755ef14359bc", "partition": "agent_dev", "positive_items": ["B08DBDD6CM", "B0BT9R8MMV", "B0BKZ3GCGR", "B016QUXTZU"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home studio to record a singer-songwriter demo, with guitar parts, sustained keyboard chords, a reliable microphone connection, and cleaner vocal takes without harsh plosive bursts."}
{"candidate_id": "dev-94e937f1ee37e828b79fd5ea", "partition": "agent_dev", "positive_items": ["B00QYA1Z18", "B000B85FV0", "B079TLFL33", "B008OHYR3W", "B01C5TCB3M", "B0BPJ4Q6FJ", "B000RJ6M4W"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a live acoustic/electric guitar session and need supplies to restring both instruments, secure my strap, connect pedals and instruments with short right-angle cables, send two channels through an isolated direct box, mount several microphones, and attach an Aviom A-16 personal mixer to a stand."}
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{"candidate_id": "dev-952f7e124ca29ea71b3e9e79", "partition": "agent_dev", "positive_items": ["B00Y3NG5HM", "B0002ORPP2", "B015WYRWYA"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m organizing a small live community event and need a portable sound setup with raised speakers and a durable handheld microphone for announcements and vocal performances."}
{"candidate_id": "dev-9559e4a2899102f86cf74d1b", "partition": "agent_dev", "positive_items": ["B0BXT384GR", "B074WXM13T", "B00N5THDR6", "B00H35YIJE", "B0B949FD92"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing for a small guitar performance and need portable music support, stable storage for two guitars, an adjustable strap with secure locking, and a convenient way to keep picks accessible during the set."}
{"candidate_id": "dev-956db9f9c1c13d4fde863199", "partition": "agent_dev", "positive_items": ["B07F3TDWSW", "B0C3LHRGB2", "B07YQKPG99", "B0085545YO", "B01N0LZSGN"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my electric guitar for live performances and need to settle in fresh strings, tune accurately, shape my tone, control unwanted amp and pedal noise, and secure the strap reliably during playing."}
{"candidate_id": "dev-9578f95d25f1c143d8371355", "partition": "agent_dev", "positive_items": ["B09BF8XDF4", "B0002E56IA", "B01E6T56EA"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing to record acoustic guitar at home: I need long-lasting medium strings, a tube preamp for the guitar microphone, and a simple two-input USB interface to capture the performance."}
{"candidate_id": "dev-957f7785bc74a8ee0a70f8c2", "partition": "agent_dev", "positive_items": ["B09M7P8SBH", "B00O5EL9NY", "B00O5EL7S6", "B07C91W874"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a small live band show and need to restring my electric guitar, run long balanced microphone lines across the venue, and set up reliable personal in-ear monitoring on stage."}
{"candidate_id": "dev-95becf6d0803796af89c1371", "partition": "agent_dev", "positive_items": ["B0BLM2R7FY", "B091MZPYBQ", "B08NVVLB16"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a small live singing setup and need a rugged handheld vocal mic, a compatible long cable to connect it to my audio equipment, and a colorful windscreen to help reduce wind noise and protect the mic from moisture."}
{"candidate_id": "dev-95f2a75641a28f3565bccd7d", "partition": "agent_dev", "positive_items": ["B08CMHD5HG", "B0C4XQ496G", "B005P4XHV0", "B015TBAFYK"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m preparing a small acoustic rock rehearsal and need to refresh my guitar’s tone, equip the drummer for a powerful set, and support two floor microphones with cleaner vocals and less wind noise."}
{"candidate_id": "dev-95f745ec42bc8d3f8bf7b308", "partition": "agent_dev", "positive_items": ["B0BJF97MDV", "B0BHSG5C3G", "B00IPHSRN2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my guitar ready for regular rehearsals and small gigs, and need an easy way to tune it, wear it comfortably, and keep the strap securely attached."}
{"candidate_id": "dev-9628b3e64efd28bd7aa35426", "partition": "agent_dev", "positive_items": ["B09Z5BSB4B", "B0C3PRL3FT", "B0002ZGE44"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small retro dance floor for a party and need a hanging mirror ball with a suitable rotating motor plus a focused LED pinspot to cast moving reflections."}
{"candidate_id": "dev-963446cdf095586f0042354c", "partition": "agent_dev", "positive_items": ["B01DE4DEGK", "B00JQYUAQU", "B015JTEBN8"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a compact home recording station and need to connect balanced audio gear, position a microphone securely, and mount equipment in a standard rack."}
{"candidate_id": "dev-96588fd35947d057f3e911bf", "partition": "agent_dev", "positive_items": ["B00D7L4NAC", "B07PJCH3MH", "B071HCV8NN", "B0BXT6TM6N"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring an LP-style electric guitar and need compatible neck and bridge humbucker mounting hardware, a three-way pickup selector, fresh internal hookup wire, and one versatile tool for installing and tightening the electronics."}
{"candidate_id": "dev-967323894cc1332ee16721cb", "partition": "agent_dev", "positive_items": ["B073XXLVWT", "B003VGSX9K", "B00TSCFIDA", "B001PGXKE6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact pedalboard for my compatible Orange amp and need warm overdrive, isolated power for multiple pedals, custom-length solderless patch cables, and a dual foot controller for amp switching."}
{"candidate_id": "dev-967c6c4d22e1861ed576f6dd", "partition": "agent_dev", "positive_items": ["B001L8NGJ2", "B075MPFFRV", "B0BHG58G2F", "B00RVE9X06", "B08BSFDY99", "B01FX69CHW", "B08DBDD6CM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my 5-string bass and vocal setup for a live gig, with fresh strings, reliable tuning, comfortable hands-free playing, easy pick options, long connections to the amp and PA, and foot control for my Fender amplifier."}
{"candidate_id": "dev-968a734ca9920f21742bb9cd", "partition": "agent_dev", "positive_items": ["B00TQ9MG9Y", "B09TBSNXQK", "B0BKZ4RCV3", "B0C4S6PJ25"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my 13-inch drum setup for tighter, warmer studio recordings and want better stick comfort, a controlled tom sound, a drier snare response, and a way to reduce unwanted ringing without losing playability."}
{"candidate_id": "dev-96adf4c01f63856da380f447", "partition": "agent_dev", "positive_items": ["B07GFH8NTB", "B01AJGC27I", "B08V4WSPBL"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing an acoustic guitar for DADGAD-style songwriting and need reliable replacement tuners, fresh long-lasting strings, and a way to create the alternate voicing without retuning."}
{"candidate_id": "dev-96e751debc045be771d5e37b", "partition": "agent_dev", "positive_items": ["B01B1IBSIM", "B00HV7U4CY", "B086QMZG22"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a solo rock performance setup where I can get a gritty distorted guitar tone while keeping time with hands-free jingling and shaker accents under my foot."}
{"candidate_id": "dev-972d32c60af885df53e7c074", "partition": "agent_dev", "positive_items": ["B00BVH7C66", "B097Q9W8MW", "B07QH1B746"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable electric-guitar practice setup and need secure protection for the guitar, a cable-free connection to the amp, and a dedicated way to carry the compact amp safely."}
{"candidate_id": "dev-97309122a7aafc3fb2b8cea5", "partition": "agent_dev", "positive_items": ["B07DWM2XSS", "B0BT862N4P", "B079SBHJG2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my electric guitar setup for regular home practice and need long-lasting replacement strings, an easy way to keep tuning accurate, and an amp with clean, driven, and headphone-friendly practice options."}
{"candidate_id": "dev-973faac42a11c4a14a4a81b0", "partition": "agent_dev", "positive_items": ["B0001Z99R4", "B08P53RGVX", "B072PQT2DM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home vocal-recording station and need a studio-quality condenser microphone, reliable protection against plosives, and a quiet balanced connection from the mic to my interface."}
{"candidate_id": "dev-97423fd6b435af7b7655c237", "partition": "agent_dev", "positive_items": ["B004GR9MOI", "B0BHXYL8BT", "B06Y2W66F5"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable busking setup and need hand-played acoustic rhythm, comfortable support for my guitar, and compact battery-powered amplification for outdoor performances."}
{"candidate_id": "dev-974b104e378f134b37c053c5", "partition": "agent_dev", "positive_items": ["B01BZTH3ZY", "B01C2T8HDI", "B093YGKPTS", "B0BKR2ZM9X", "B015XDJB9E"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m building a compact travel guitar rig for recording demos, with reliable locking tuning, precise tuning checks, expressive wah and volume control, and a portable multitrack recorder for connecting instruments and shaping sounds."}
{"candidate_id": "dev-97c84aa2be8302dff3b1774f", "partition": "agent_dev", "positive_items": ["B0BKZ6M28F", "B09HCYXHR6", "B078KX8YJD", "B0BCXD2QDB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m rebuilding my 24-inch rock drum kit for a deep, punchy early-70s sound and need durable, easy-to-tune heads for the snare and 10-inch tom, plus a bass-drum setup that works with double pedals and adjustable damping."}
{"candidate_id": "dev-97dce098822efec3d9c156a5", "partition": "agent_dev", "positive_items": ["B09R2TMLJR", "B01LZT1EK0", "B0049BKJ70"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing an SG-style electric guitar and need supplies to replace its controls and selector hardware, then test the finished instrument with precise picks for setup and articulation."}
{"candidate_id": "dev-97eb6914fb5d36ffd3271419", "partition": "agent_dev", "positive_items": ["B00L9R9YVO", "B0149GFCX0", "B0C5PRQ9K6", "B00JQYUAQU"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a small live-performance sound system and need to secure equipment in a rack, route multiple stage microphones and monitor returns, connect an additional mic, and link the amplifier to passive speakers across the venue."}
{"candidate_id": "dev-97f0e3b489b6762d44f28ee3", "partition": "agent_dev", "positive_items": ["B0040JHPIM", "B0002F534G", "B00TH48HUK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my soprano saxophone for a jazz gig and need fresh reeds, protection for the mouthpiece between sets, and cork lubricant for smooth assembly and maintenance."}
{"candidate_id": "dev-97fdd63478712f6f6b11f107", "partition": "agent_dev", "positive_items": ["B06XKX63GC", "B076W18YDF", "B001W99HE8", "B017DNYI0E"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a portable live jazz-electronic set and need to safely transport rack-mounted synth gear, a 61-key keyboard, soprano saxophone, and a microphone for amplifying the performance."}
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{"candidate_id": "dev-9808f3c5259c527abd6b5efe", "partition": "agent_dev", "positive_items": ["B09RN7GR8F", "B019NY2PKG", "B06X9KG3HW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home recording station to capture vocals and instruments into my computer, and need reliable XLR connections plus an adjustable stand to position the microphone securely."}
{"candidate_id": "dev-9809760d224428dd8d627974", "partition": "agent_dev", "positive_items": ["B07DPJS6DZ", "B0002DNUIO", "B0002DNUWK"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a mobile DJ setup for a party and need a portable overhead lighting rig with clamps to secure the fixtures, plus control records for mixing during the event."}
{"candidate_id": "dev-980fb07034d04618cc369c7f", "partition": "agent_dev", "positive_items": ["B016QVUZP6", "B006WZ9OT0", "B003WGAXTW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a focused snare practice setup for working on powerful backbeats and controlled tones, with a versatile drum, dependable wood-tip sticks, and adjustable dampening for quiet home sessions."}
{"candidate_id": "dev-9845599bd3167473f6c38901", "partition": "agent_dev", "positive_items": ["B00Y3NG5HM", "B07C91JT14", "B000165DSM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live acoustic performance and need a practical vocal setup for several performers, stable elevated PA speakers, and long XLR connections to run everything across the stage."}
{"candidate_id": "dev-9876d493bcbb9c0a33bfca39", "partition": "agent_dev", "positive_items": ["B0BKZ5F8BS", "B0C3LH9FX2", "B01DZ6FBBI"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my small band’s rehearsal setup ready and need stable adjustable support for a keyboard, smooth warm strings for my five-string bass, and dependable picks for practice."}
{"candidate_id": "dev-98a1baf9aae72e362945cb57", "partition": "agent_dev", "positive_items": ["B074WXM13T", "B001677QO4", "B09M7P8SBH"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing for a small acoustic-and-electric guitar performance and need fresh strings for both instruments plus a comfortable, secure strap that works with either guitar."}
{"candidate_id": "dev-98e0f4e6f5cd745c580ff52b", "partition": "agent_dev", "positive_items": ["B0BTC9YJ2W", "B07R3S93K8", "B09S2VB3KW", "B00QNNNCR6"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a home guitar corner: I need to restring my 12-string acoustic, speed up the string change, have reliable picks for testing the new sound, and safely wall-store my other guitars."}
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{"candidate_id": "dev-996f39bb9244b108010285bd", "partition": "agent_dev", "positive_items": ["B097Q9W8MW", "B00ICR92F2", "B00RX5HQS4", "B09V91H5XM"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m preparing my electric guitar for regular rehearsals and gigs and need a comfortable way to carry it, sturdy protection for transport, replacement tremolo hardware, and a reliable cable to connect to an amp."}
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{"candidate_id": "dev-9ca4439398a665396d3813e9", "partition": "agent_dev", "positive_items": ["B00N4ZHQ14", "B0B6H8D2YH", "B00IFOTSJW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m planning a road-trip campfire sing-along and need a compact, easy-to-carry acoustic setup that can stay in tune, support quick key changes, and fit in limited luggage space."}
{"candidate_id": "dev-9cfd2603d94a64203cd745cf", "partition": "agent_dev", "positive_items": ["B0938MMWSV", "B0009FC928", "B00646MZHK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my bass ready for a small live gig and need durable replacement strings, reliable clip-on tuning, and a long cable for connecting to the amplifier."}
{"candidate_id": "dev-9d10301015ef09908af4adec", "partition": "agent_dev", "positive_items": ["B002GYWBKU", "B097FMTZCP", "B00H35YIJE"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a guitar performance setup with secure instrument support on a nearby surface, reliable strap attachment, and hands-free control of my Line 6 amp’s channels, effects timing, wah, volume, and tuning."}
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{"candidate_id": "dev-9d3a924656753eab4635db23", "partition": "agent_dev", "positive_items": ["B08FDBCYHL", "B07CYRYQ8G", "B08NZ14V6P", "B06X9KG3HW"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m building a compact home recording setup to capture detailed vocals and instruments through multiple inputs, connect microphones with balanced cables, and compose or trigger virtual instruments using a portable keyboard and drum pads."}
{"candidate_id": "dev-9d83d9d001f38fa8a4d0fe48", "partition": "agent_dev", "positive_items": ["B01N3TCAVE", "B01JB942EU", "B001MZUCR8"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a beginner bongo practice and performance station with tunable drums, stable adjustable support and carrying storage, plus a holder for headphones or a tambourine that attaches to my existing microphone stand."}
{"candidate_id": "dev-9dd9785aaac54a266ca1830f", "partition": "agent_dev", "positive_items": ["B092LF6RLS", "B0BYXQHW7Y", "B0B89ZSYS7"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home podcast studio and need a broadcast-quality vocal microphone, a sturdy swivel boom arm to position it at my desk, and a long balanced XLR cable to connect it to my recording gear."}
{"candidate_id": "dev-9df3a117552f105d71bfb93b", "partition": "agent_dev", "positive_items": ["B00CPLODUU", "B00646MZHK", "B0C4XQ496G", "B09VT45772", "B07PSWC1XY"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home session to record vocals and six-string acoustic guitar, with a sensitive studio microphone, plosive control, stable adjustable floor support, accurate clip-on tuning, and an easy way to change guitar keys without retuning."}
{"candidate_id": "dev-9e8cfb65c5437f8b63fb514f", "partition": "agent_dev", "positive_items": ["B08N648L25", "B0B927ZR1X", "B0BK6PLQZW", "B086QP7WM2", "B000CZ0R3S", "B0BCXTPJR2", "B0BNVFLP64"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m refreshing my electric guitar and small gigging rig for recording and live demos, with smoother strings, replacement control hardware, versatile EQ and high-gain tones, a matching amp speaker, reliable instrument miking, and a comfortable strap."}
{"candidate_id": "dev-9ed399f537a006666114e790", "partition": "agent_dev", "positive_items": ["B07MHL48V6", "B0B81FHSYZ", "B00AHFXH30"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a guitar performance rig with my Loudbox amplifier and need hands-free amp control, vintage-style delay, and a reliable short patch connection between the effects and amp."}
{"candidate_id": "dev-9ed63c00df3b49b29e601f1e", "partition": "agent_dev", "positive_items": ["B095XZJ99J", "B0BXT385LV", "B07BJZDR73"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refreshing my electric guitar rig for a prog-rock recording session: restring the six-string for stable tuning, use precise heavy picks for articulate playing, and customize my effects pedal switches for quicker, more comfortable changes."}
{"candidate_id": "dev-9effd72dd3e450c289629111", "partition": "agent_dev", "positive_items": ["B075R91PXY", "B078YMMBWC", "B071R6JQVF"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a portable sound system for a small community event and need powerful low-end reinforcement, protected transport for rack equipment, and two reliable wireless handheld microphones for presenters or performers."}
{"candidate_id": "dev-9f1005a54e6479c4c45ef2fa", "partition": "agent_dev", "positive_items": ["B06ZZ3YR46", "B08KRFGST9", "B0002VB8AS", "B098KXQJVY", "B00IFOTSJW", "B0BK6PMJD2", "B097BG4N5T"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for a small live electric-guitar-and-vocal performance and need reliable gear for restringing and tuning my 7-string, safely holding the guitar, positioning the vocal mic, and monitoring both my voice and instrument onstage."}
{"candidate_id": "dev-9f1f9c79fb459f403dcf3977", "partition": "agent_dev", "positive_items": ["B002AN93VW", "B07FFNXF8W", "B0BZ5KMS85"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my bass setup for an upcoming rehearsal and small gig, with mellow flatwound strings, a comfortable adjustable strap, and short reliable cables for connecting my pedals and gear."}
{"candidate_id": "dev-9f2d21a816486f0947f9653c", "partition": "agent_dev", "positive_items": ["B09BF8XDF4", "B096K2LZKH", "B0B8M2Q1DS", "B00D35CNL8"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my acoustic guitar ready for regular gigs and want a comfortable adjustable strap with secure locks, fresh long-lasting medium-gauge strings, and a reliable 9V power supply for my pedal setup."}
{"candidate_id": "dev-9f3a0a8d45f86ec5348501d6", "partition": "agent_dev", "positive_items": ["B07DLC9KYG", "B0002E1IW8", "B0047VIXBG", "B07MHR1CQB", "B0B4SGJRHR", "B00TH49OL6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I'm preparing for a saxophone ensemble rehearsal and need supplies for soprano, alto, and tenor parts, including appropriate reeds, an alto setup for clear tone, a comfortable support strap, and a stable adjustable stand for reading scores."}
{"candidate_id": "dev-9f3a39642b15fae77e0eaeb0", "partition": "agent_dev", "positive_items": ["B0C3LLSSV5", "B0BK5CXZBT", "B01IRXN2NS"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring a vintage-style electric guitar and need to safely clean its finish, measure the fretboard and string radius for setup, and upgrade the existing 8.5 mm headstock tuners without drilling."}
{"candidate_id": "dev-9f60f912fd08ab0fe38a7897", "partition": "agent_dev", "positive_items": ["B0191AGZNK", "B09QZJ57YW", "B00ABM7Y8S", "B000P1RB9C", "B01AAX6KGY", "B004VXGW7W"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m restoring an electric guitar and need materials for refretting it, upgraded volume and tone controls, a replacement input jack, locking tuners for a 3x3 headstock, reliable picks for testing, and a secure adjustable stand for storage."}
{"candidate_id": "dev-9f6d232b40cc2c81991a6fb6", "partition": "agent_dev", "positive_items": ["B01KPZ6E72", "B09JJ784V5", "B019NY2PKG"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a portable setup for small acoustic gigs and need adjustable microphone positioning, a secure way to elevate a speaker, and convenient protection for transporting the stands."}
{"candidate_id": "dev-9fa2c6ac24237b031c130ebe", "partition": "agent_dev", "positive_items": ["B001VMSY90", "B01FX69CHW", "B0764698GB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a bass rig for long rehearsals and gigs and need hands-free control of amp presets, tuning and muting, quick switching to a low-C drop tuning, and a comfortable strap that won’t fatigue my shoulder."}
{"candidate_id": "dev-9fa6c20d395213d35e2a2a84", "partition": "agent_dev", "positive_items": ["B08BSFDY99", "B09MQGL896", "B00F1I35NU"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing an electric guitar and need compatible hardware for mounting full-size humbuckers, updated volume and tone controls, plus a selection of medium-to-heavy picks for setup and testing the finished instrument."}
{"candidate_id": "dev-9fc208fee639f3d3878052eb", "partition": "agent_dev", "positive_items": ["B0B8LYBTXZ", "B000EEJFN0", "B00646MZHK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting ready to learn and perform mandolin songs, and need reliable pitch checking, comfortable support while playing standing, and durable picks for clear, controlled strumming."}
{"candidate_id": "dev-9fd78b7e1d806e80d639fff6", "partition": "agent_dev", "positive_items": ["B000LQLDM2", "B017NT392Q", "B07PSWC1XY"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a small vocal recording station and need a stable adjustable boom setup, isolation from handling vibrations, and protection against plosive sounds for cleaner takes."}
{"candidate_id": "dev-9fe3b404705c3372b1699e91", "partition": "agent_dev", "positive_items": ["B009AARY2I", "B0BTC9YJ2W", "B007MY5BDI", "B019RINZLQ"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I'm preparing for a small live acoustic set and need supplies to restring both my six-string and twelve-string guitars, replace worn bridge pins, and send a clean instrument signal to the venue's XLR stage snake."}
{"candidate_id": "dev-a014f9bf197d4238984a22d2", "partition": "agent_dev", "positive_items": ["B07PSWC1XY", "B017NT392Q", "B0C6H9T5T6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home podcast recording space and need clear USB audio, adjustable hands-free microphone positioning, and protection from vocal pops for polished episodes."}
{"candidate_id": "dev-a042dc33e63c9af99ad6b12f", "partition": "agent_dev", "positive_items": ["B09P3ZVLV8", "B0B52FBC66", "B01DN7OI40"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a small live vocal audio system and need dependable balanced XLR connections, longer microphone runs, short equipment patch connections, and a way to send one microphone signal to two mixer channels."}
{"candidate_id": "dev-a063a2926e9f9f6a2d979109", "partition": "agent_dev", "positive_items": ["B07RLVH6H4", "B07QPSS38Z", "B07KWT7XLY"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I want to refurbish and properly set up my Les Paul or SG-style electric guitar, including replacing the wraparound bridge, crowning and protecting the frets, and accurately checking string radius, action, and clearances."}
{"candidate_id": "dev-a06c5ba9b759fd5ce7769316", "partition": "agent_dev", "positive_items": ["B09L16ZBBR", "B09MBW81X3", "B09HKJZ83T"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I'm putting together a playful home-recorded song and need to freshen up my electric guitar, add a quirky kazoo melody, and capture the vocals and instruments clearly for a polished demo."}
{"candidate_id": "dev-a093698f3cc5956019c860ff", "partition": "agent_dev", "positive_items": ["B09HL6MZ45", "B0BK6S7QF4", "B0BKZ1G3P3"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m refurbishing my drum kit for versatile live, studio, and brush playing and need durable coated heads for the toms, a controlled two-ply batter head for the snare, and a clear resonant snare head that tunes easily."}
{"candidate_id": "dev-a0b99e71565206695c936b3d", "partition": "agent_dev", "positive_items": ["B0010SHU18", "B0BRWSYSJS", "B0B8P1YW7L"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing my acoustic guitar for a louder live performance and need reliable tuning, faster string changes, and a soundhole solution to prevent feedback without interfering with my pickup."}
{"candidate_id": "dev-a0fbdb9d2bf72d4713a3e5aa", "partition": "agent_dev", "positive_items": ["B09V91H5XM", "B0B95V41NR", "B0BTC9YJ2W"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m getting my 12-string acoustic ready for a small amplified performance and need comfortable support, a reliable connection to my gear, and extra-light phosphor bronze strings for a warm, balanced sound."}
{"candidate_id": "dev-a10060ae9aaa417f0db900be", "partition": "agent_dev", "positive_items": ["B005VU1SZK", "B002Q0WT56", "B078KGLKH3"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m getting my bass ready for regular gigs and need easier transport, secure seated support, and a convenient way to change and stretch strings onstage."}
{"candidate_id": "dev-a10c3a45d499e08f4ce01516", "partition": "agent_dev", "positive_items": ["B09V91H5XM", "B0928HZNHJ", "B0928HW2P4", "B01DK40R3M", "B005M0KLGQ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I'm getting my electric guitar and pedalboard ready for a gig and need a comfortable adjustable strap, fretboard care, a British-style amp-sim drive tone, quiet isolated power with flexible voltage options, and short right-angle patch connections."}
{"candidate_id": "dev-a141f8dadeb56e8751d8afeb", "partition": "agent_dev", "positive_items": ["B00YJ5C46K", "B0084CRYOG", "B076ZCV288", "B07GFH8NTB"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing my acoustic guitar setup for a small live performance and need fresh strings, a reliable cable for connecting my instrument, a stand for my laptop or mixer, and convenient microphone-stand storage for picks and drinks."}
{"candidate_id": "dev-a146de490be8d0cfdcdf39a4", "partition": "agent_dev", "positive_items": ["B09T8HDBYK", "B00I0YOB9O", "B0002E51SU"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a quiet home setup to practice blues and folk songs with a drummer, including versatile harmonica parts in different keys and reduced-volume practice on a 15-inch drum."}
{"candidate_id": "dev-a18591e14c7f40852775ceb3", "partition": "agent_dev", "positive_items": ["B09G5L8DV5", "B07D1WM2G6", "B0BJ3BBTXH", "B000A2HDXA"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a portable blues practice and gig setup: I need several harmonica keys, a faster way to restring my electric guitar, fresh tone options, and supplies to make replacement picks."}
{"candidate_id": "dev-a1a1b7e48838aa73ac4c8b30", "partition": "agent_dev", "positive_items": ["B0B8M5FJ9W", "B000EEL50Q", "B0BPKTYTPQ", "B08JMQR2JK", "B09GWVFHR5", "B08R5GM6YB"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m preparing my electric guitars for regular playing and storage, and need bright light-gauge strings, an all-in-one restringing tool, instrument-safe cleaning and humidity control, a secure playing strap, and padded stands for several guitars."}
{"candidate_id": "dev-a1c0cca09859a09b1b29900f", "partition": "agent_dev", "positive_items": ["B001LXMXU0", "B09ZTHDXTD", "B09ZSKK72G"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small stage lighting show and need reliable DMX connections from my control board to several fixtures, with both shorter and longer cable runs for flexible placement."}
{"candidate_id": "dev-a1ee82ffcc3df25b2b18b1b7", "partition": "agent_dev", "positive_items": ["B0928FMP3T", "B01DK40R3M", "B0771QC7RH"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a compact guitar pedalboard for recording and live playing, with lush phase modulation, an adjustable wah for expressive solos, and short right-angle patch cables to keep the effects tightly connected."}
{"candidate_id": "dev-a2156fab46386d5dcc92a6ef", "partition": "agent_dev", "positive_items": ["B0B95V41NR", "B075MPFFRV", "B07L5WPJYG"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact guitar rig for heavy metal rehearsal and gigs, with reliable tuning, high-gain distortion, clean signal routing, and a setup that works with standard pedal power."}
{"candidate_id": "dev-a25eb90e1e249bf7f61b41a8", "partition": "agent_dev", "positive_items": ["B0BRSK33BC", "B09S2VB3KW", "B07R3S93K8"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a small blues and rock practice corner and need secure wall storage for my guitars, durable non-slip picks for strumming, and a major-key E harmonica for playing along."}
{"candidate_id": "dev-a29f12b62862d1be46480e6e", "partition": "agent_dev", "positive_items": ["B08JDS7187", "B000NU2L8Q", "B000NU2L9A", "B000NTZARQ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a portable two-keyboard performance setup and need weather protection for my slim 88-note keyboard, plus an adjustable collapsible stand with stable stacking support for a second keyboard."}
{"candidate_id": "dev-a2ac5156ce7e9a0674cf7ba3", "partition": "agent_dev", "positive_items": ["B074WXM13T", "B0BTC9YJ2W", "B00H4PEMM6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my 12-string acoustic ready for a small performance and need fresh, warm-sounding strings, a comfortable way to play standing, and an easy one-hand tool for changing keys."}
{"candidate_id": "dev-a2b46eb7aeb7d704bf6d087e", "partition": "agent_dev", "positive_items": ["B0B52FBC66", "B07N5J3GTB", "B091MZPYBQ"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a small live singing performance and need a handheld vocal microphone, reliable balanced connections to the audio system, and foam protection to reduce breath and wind noise."}
{"candidate_id": "dev-a2e5cc426215f401beaee514", "partition": "agent_dev", "positive_items": ["B0002DVCAM", "B019NY2PKG", "B06X9KG3HW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m tuning a small PA system in a rehearsal room and need a neutral measurement microphone, balanced connections, and a stable adjustable setup for hands-free room testing and EQ optimization."}
{"candidate_id": "dev-a2f4bbf5360a13410814b75a", "partition": "agent_dev", "positive_items": ["B077T13NNB", "B000SZVYLQ", "B0BKZ6M28F"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m upgrading my drum kit for practicing double-kick parts and need responsive double pedals, protection for the bass drum head where the beaters strike, and improved grip and control on my sticks."}
{"candidate_id": "dev-a30c7258eb66cd5a2eaf6424", "partition": "agent_dev", "positive_items": ["B074VRW7PP", "B0C39H86Q1", "B07N5J3GTB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small evening vocal performance with amplified singing, so I need a reliable handheld microphone and connection to my audio equipment, plus portable light for reading lyrics or sheet music."}
{"candidate_id": "dev-a350dc296ce9b8e0c96b2469", "partition": "agent_dev", "positive_items": ["B075LQDQTQ", "B00WARLG8G", "B07CYRYQ8G", "B06X9KG3HW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a Windows home recording studio to produce and mix music, record several microphones or instruments through multiple inputs, connect balanced audio cables, and monitor tracks privately while working in my DAW."}
{"candidate_id": "dev-a37524eba81050811a6f4b0b", "partition": "agent_dev", "positive_items": ["B00KGTQM5W", "B01DE4DVO0", "B00646MZHK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my guitar for rehearsals and small performances, and need an easy way to tune accurately, change keys quickly, and connect the instrument to amplification."}
{"candidate_id": "dev-a38db4c993ad8d530c272d2d", "partition": "agent_dev", "positive_items": ["B001986E34", "B00646MZHK", "B01C189HRK", "B00BVH7C66"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing for acoustic guitar gigs and rehearsals, and need protective transport for my guitar and compact amp, plus reliable clip-on tuning and durable picks for consistent playing on the go."}
{"candidate_id": "dev-a39f197c9bb720a87c9d102f", "partition": "agent_dev", "positive_items": ["B015X3CXXA", "B097FMTZCP", "B0B2T1LF1L"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact guitar looping station for rehearsals and small gigs, with simple overdubbing, a long reliable connection with quiet instrument changes, and a secure place to rest my guitar between takes."}
{"candidate_id": "dev-a3c87588e0a94cfa7708eb02", "partition": "agent_dev", "positive_items": ["B00646MZHK", "B002Q0WTCE", "B09D23M922"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m getting my B-flat clarinet ready for practice and need an easy-playing reed setup, a durable way to hold the reed securely, and a precise clip-on tuner so I can stay in tune."}
{"candidate_id": "dev-a4102d8c868b751390ace718", "partition": "agent_dev", "positive_items": ["B07V4GG652", "B0BKZ6M28F", "B09TXP3FSK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a quieter rock drumming practice routine on my acoustic kit: I need to reduce volume across the drums, protect the bass head during double-pedal work, and use sticks that stay grippy with dry hands."}
{"candidate_id": "dev-a410fa8748555f986790882f", "partition": "agent_dev", "positive_items": ["B00SKT45PY", "B072235GXG", "B004OK1G64"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a versatile electric-guitar practice and recording setup that lets me tune accurately, add swirling modulation, and shape everything from subtle grit to responsive overdriven lead tones."}
{"candidate_id": "dev-a420f5e2c1e7fa968de62788", "partition": "agent_dev", "positive_items": ["B00125VMKY", "B00N5TH2H2", "B00IFOTSJW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for solo street performances with electric bass and harmonica, so I need a way to carry and protect my bass, keep it accurately tuned, and play harmonica hands-free while performing."}
{"candidate_id": "dev-a42f06ed93c81f70710e57b4", "partition": "agent_dev", "positive_items": ["B0083HKAYS", "B071YMDLW6", "B003BLOSJ4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a mobile DJ and event presentation rig with securely mounted lighting, a rack shelf for my laptop or projector, and ventilation for the enclosed equipment rack."}
{"candidate_id": "dev-a436306e4f3b96b8cde1390b", "partition": "agent_dev", "positive_items": ["B001383XT8", "B09H1JQ8L5", "B01DE4DTAG", "B09PH4DV67"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a casual home metal jam and need a setup for tuning the stringed instruments, getting crushing guitar tones, connecting the guitar to an amp, and singing along with friends."}
{"candidate_id": "dev-a43c66be4cbae5ea7f0e7c1b", "partition": "agent_dev", "positive_items": ["B00C08JJUC", "B003VGSX9K", "B07Y94MSG9"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m getting my electric guitar and Orange amp ready for rehearsals, with a fresh setup, dependable signal connection, and hands-free control of amp functions."}
{"candidate_id": "dev-a446a9988862c18a13d9c823", "partition": "agent_dev", "positive_items": ["B003AYLWCS", "B000EN2SG2", "B0C5PRQ9K6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my electric bass for rehearsals and need to fine-tune the neck, restring it for a flexible bright tone, and connect my amp securely to a speaker across a larger setup."}
{"candidate_id": "dev-a48a45a5058c721e45eb01c5", "partition": "agent_dev", "positive_items": ["B00883PNQW", "B003AXB4Q8", "B015TBAAT0"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m building a four-string cigar box guitar from scratch and need reliable tuning hardware, fret material for the neck, and durable acoustic strings to finish and play it."}
{"candidate_id": "dev-a4ace7cb9a6b424a87102712", "partition": "agent_dev", "positive_items": ["B003B1PETC", "B079TLFL33", "B0BKR2ZM9X"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m upgrading my tune-o-matic electric guitar with a Bigsby B5-style vibrato without drilling, while improving tuning stability and keeping the strap securely attached for performances."}
{"candidate_id": "dev-a5222b0f2e05f520b2a2f6cd", "partition": "agent_dev", "positive_items": ["B081T636X2", "B09R6PRMMY", "B076ZSHQ47"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing for guitar practice and small gigs, and need reliable gear to connect my instrument to an amp, shape my playing, and keep the strap and cable securely in place."}
{"candidate_id": "dev-a530927f3500a4040ed42c15", "partition": "agent_dev", "positive_items": ["B075XDB1D8", "B09ZTK33ZC", "B0BSGM6CQ9"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m giving my Floyd Rose electric guitar a full refresh: replacing the strings with a heavier set, keeping the floating bridge level during setup, and cleaning, polishing, and conditioning the instrument afterward. I need everything suitable for this maintenance job."}
{"candidate_id": "dev-a540b315fa33a8fa232e5f45", "partition": "agent_dev", "positive_items": ["B09VT45772", "B07N5J3GTB", "B00O5EL4MA"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home recording and rehearsal space for vocals and acoustic instruments, needing a reliable live-singing microphone, a sensitive mic for detailed instrument takes, and long balanced connections to my mixer or powered speakers."}
{"candidate_id": "dev-a59a5c782b40baf08f1c3b9b", "partition": "agent_dev", "positive_items": ["B078KD7L77", "B071RRGN61", "B09HL6MZ45"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing a versatile snare setup for a small live jazz and concert performance, with one drum tuned for clear, controlled snare response and another delivering a warm, dark projected tone, plus low-volume dowel sticks for sensitive ensemble passages."}
{"candidate_id": "dev-a5a7a89cf0dda5b55bfcc2b7", "partition": "agent_dev", "positive_items": ["B091MZPYBQ", "B0BLM2R7FY", "B0BSB9249S", "B019NY2PKG"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small outdoor vocal performance and need a stable adjustable microphone setup, a handheld vocal mic, the right cable for connecting it to my equipment, and protection from wind and moisture."}
{"candidate_id": "dev-a5aa1483a3f00c4105da76da", "partition": "agent_dev", "positive_items": ["B00WVO0Z26", "B0928HW2P4", "B00HZH4D04"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my Schecter electric guitar for playing and transport, and need to care for the fretboard, carry it securely in a protective case, and play comfortably with a durable adjustable strap."}
{"candidate_id": "dev-a5adc1fa281cb8f77e608695", "partition": "agent_dev", "positive_items": ["B001P3SL8E", "B003YPVQ2Y", "B0B8LZKBN7"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m upgrading a five-string bass for versatile live playing and need a low-noise active pickup, onboard controls for volume, balance, and adjustable bass, mids, and treble, plus a durable wide strap comfortable for supporting a heavy instrument."}
{"candidate_id": "dev-a5d64a61720d054bfd35d93e", "partition": "agent_dev", "positive_items": ["B09G5QS1VD", "B00CGFRJ2Y", "B0BFKQ9QXD"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my acoustic and electric guitars ready for regular playing and recording, so I need suitable strings for each instrument plus comfortable picks for strumming and lead work."}
{"candidate_id": "dev-a5f767cebbc606a005d36eae", "partition": "agent_dev", "positive_items": ["B07PMJQM4L", "B07FTVKZB3", "B0BJ3BBTXH"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m restringing my acoustic guitar and want to make the job faster, then add a comfortable adjustable strap with a secure headstock attachment so I can play standing without tying a rope around the neck."}
{"candidate_id": "dev-a6229e771c109e06faebe7e0", "partition": "agent_dev", "positive_items": ["B0B52FBC66", "B0002NRTL8", "B0BLLHCQZK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact rehearsal audio station with rack storage, a mounted personal mixer, and enough balanced connections for microphones and stage gear."}
{"candidate_id": "dev-a6506cfeed069d037dd6267a", "partition": "agent_dev", "positive_items": ["B00GK75WXC", "B07217RS84", "B09V91H5XM", "B07R28FF44"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refurbishing my electric bass for gigs: replace the chrome control hardware, rewire the tone controls, add a comfortable adjustable strap, and organize my effects setup on a portable pedalboard with a carrying case."}
{"candidate_id": "dev-a66eac38a31716d336a2ff16", "partition": "agent_dev", "positive_items": ["B00646MZHK", "B07Y94MSG9", "B0C3LJM9F7"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I'm setting up a small guitar-and-vocal rehearsal and need a reliable instrument connection, hands-free microphone positioning, and precise clip-on tuning so I can practice and perform cleanly."}
{"candidate_id": "dev-a685ed9917703737de3ffb2d", "partition": "agent_dev", "positive_items": ["B09V546NP7", "B0BBPHCD82", "B0081LFGMW", "B000EEJ9N6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a compact drum effects setup for recording, with bright splash and bell accents, a crash for bigger transitions, and an easy way to tighten and warm up my snare tone."}
{"candidate_id": "dev-a6b066952330c8ad4fc84eb3", "partition": "agent_dev", "positive_items": ["B015JTEBN8", "B019JX565C", "B00M6SJ3CU"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home vocal-and-keyboard performance station and need to capture singing hands-free, position the microphone securely, and protect the keyboard between sessions."}
{"candidate_id": "dev-a6d0d5571609745dfc52e38d", "partition": "agent_dev", "positive_items": ["B08HLBZ578", "B0BX8ST2FY", "B0002ERE3A"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m recording a small documentary on location and need a portable setup for capturing several microphones, minimizing handling and stand vibrations, and monitoring the takes accurately through closed-back studio headphones."}
{"candidate_id": "dev-a6d4e4b1de72633afffe791f", "partition": "agent_dev", "positive_items": ["B07BNVG384", "B08XYTW5S2", "B00DDXL7O4"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a compact acoustic street-performance rig where I can play a wine-barrel cajon with a foot-operated bass effect while keeping my guitar secure and accessible between songs."}
{"candidate_id": "dev-a703cff4a7687e9b42926494", "partition": "agent_dev", "positive_items": ["B0B92LPGD2", "B0BKR2ZM9X", "B0BSGM6CQ9", "B0772STLBS"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m upgrading my electric guitar for more stable tuning and a heavier-gauge feel, so I need compatible locking tuners and string guides, fresh nickel-wound strings, and a compact practice and effects unit for headphone practice and experimenting with amp sounds."}
{"candidate_id": "dev-a79bb398d8d6536ff7d5571e", "partition": "agent_dev", "positive_items": ["B0BPJ4Q6FJ", "B003AYK14S", "B00HU25WSQ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring a vintage-style Strat for bright Nashville-style doubled parts and need compatible bridge hardware, a high-strung six-string setup, and durable picks for playing and finishing the project."}
{"candidate_id": "dev-a7e583a9712d43534a94c3a3", "partition": "agent_dev", "positive_items": ["B075MP9NM6", "B0BYXQHW7Y", "B015XTFNP4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home recording and streaming station and need a stable adjustable microphone mount that reduces desk vibrations and controls breath and plosive noise."}
{"candidate_id": "dev-a7e939c6130f54ae1837b5d0", "partition": "agent_dev", "positive_items": ["B004STXT2K", "B06X9YBVXS", "B09JJ784V5", "B0002E57DY", "B07TD9NX9F", "B0057YBE18", "B06Y19G8WD"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable setup for small live music gigs and need a road-ready way to rack and protect my audio gear, connect several instruments to the mixer, run and control stage lighting, swap microphones quickly, and transport the necessary stands and cabling."}
{"candidate_id": "dev-a7f875adef3544fb9eb0e937", "partition": "agent_dev", "positive_items": ["B07CYRYQ8G", "B0C5BMZ1K9", "B06X9KG3HW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home podcast studio for interviews, with a desk-mounted condenser microphone, monitoring headphones, reliable balanced connections, and enough audio inputs to expand with additional guests or instruments."}
{"candidate_id": "dev-a8056576b416211bd1124c54", "partition": "agent_dev", "positive_items": ["B00CB000RK", "B0BPJ4Q6FJ", "B001FSZR4U"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my electric and acoustic guitars with reliable new strings for different playing styles, and I’d like a reusable tool to remove sweat and oils so the strings stay fresh longer."}
{"candidate_id": "dev-a82cafd190759f4060eb30e8", "partition": "agent_dev", "positive_items": ["B092LF6RLS", "B01H0PACWI", "B07CQQXQ4T"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live music system with a laptop feeding separate left and right mixer channels, a long cable for the microphone, and cleaner, surge-protected power for the audio equipment."}
{"candidate_id": "dev-a8307c91da515791027af4d8", "partition": "agent_dev", "positive_items": ["B001F2PHO6", "B01CTWVIY8", "B094NDQRJQ", "B01I6F2RII"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m organizing a quiet jazz rehearsal and live demo, needing clear acoustic-instrument sound, gentle brush rhythms with a mounted tambourine accent, and a portable stand for reading charts."}
{"candidate_id": "dev-a83928060514495a1a1f216c", "partition": "agent_dev", "positive_items": ["B009AARY2I", "B0BSCGXCVP", "B0B3LJZXK7", "B00I9FL3OA"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home studio to record fingerpicked acoustic guitar and vocals, with clean instrument connections, hands-free picking control, and computer-based multitrack production."}
{"candidate_id": "dev-a85e7ae2f450bbc15b504899", "partition": "agent_dev", "positive_items": ["B0BKZ3GCGR", "B01K1EJQ9U", "B0B8LK7MTH"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a practical setup for rehearsing and playing guitar, with comfortable picks for a warm tone, secure hands-free support, and an easy way to keep spare picks within reach."}
{"candidate_id": "dev-a8601d36477340296289fd9c", "partition": "agent_dev", "positive_items": ["B09LYNWVPC", "B003SQGSPY", "B0002F79E8", "B01M2CARQU"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I'm organizing a lively beginner percussion workshop and need handheld instruments for bright jingle accents, paired rattling textures, subtle egg-like shaker sounds, and a loud bell pulse for keeping everyone together."}
{"candidate_id": "dev-a88b0d383bdd01f3416962e5", "partition": "agent_dev", "positive_items": ["B07MQK9168", "B0BSGM6CQ9", "B00JXOCJDK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my electric guitar setup for rehearsing and recording, and need heavier-gauge strings, a reliable long connection to my amp, and a versatile overdrive that can deliver warm blues tones through heavier distortion while keeping unwanted noise controlled."}
{"candidate_id": "dev-a8bf20e8be12b3f6607e1e1c", "partition": "agent_dev", "positive_items": ["B00HI4CULS", "B0722VK6MD", "B06X9KG3HW", "B08BW2TBD7"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact guitar rehearsal and small live performance rig with secure instrument support, flexible effects-loop switching, short connections between pedals, and reliable microphone-to-PA cabling."}
{"candidate_id": "dev-a8cd6438d6583d3edd25ee72", "partition": "agent_dev", "positive_items": ["B0BDGC832H", "B07GC8BN6B", "B077PGW7WT"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up lighting for a medium-sized party venue and need a way to program multiple intelligent lights wirelessly, connect the fixtures reliably, and add water-based fog effects for a dramatic atmosphere."}
{"candidate_id": "dev-a8d8e4f43f0370e75ddc213d", "partition": "agent_dev", "positive_items": ["B00FX7MMRO", "B0C3BSXX6N", "B06Y42XH8Z"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home recording space for voiceovers and podcasts, with hands-free desktop microphone positioning and accurate speakers for monitoring and mixing."}
{"candidate_id": "dev-a90e9dad1de7f349663bce81", "partition": "agent_dev", "positive_items": ["B074WXM13T", "B08JMQR2JK", "B01K1EJQ9U"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small guitar practice and performance corner with padded support for several guitars, convenient pick access, and a durable, comfortable strap for playing both electric and acoustic instruments."}
{"candidate_id": "dev-a9251121fd3829056847dd50", "partition": "agent_dev", "positive_items": ["B09S2VB3KW", "B0812FFY9J", "B0002D0L5E"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a compact electric-guitar rehearsal rig and need supplies to replace a high E string, maintain a secure grip while practicing fast parts, and power and charge rack-mounted gear from one organized station."}
{"candidate_id": "dev-a9325819bf24e50f3b266e00", "partition": "agent_dev", "positive_items": ["B06ZYJ4M3H", "B0BSGM6CQ9", "B001E95KEC"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a live set with one guitar and need to refresh its strings, shape an acoustic pickup’s tone cleanly into the PA, and add a smooth, tube-like overdrive option for the electric songs."}
{"candidate_id": "dev-a93e667775a3e0e4f1eb3ca3", "partition": "agent_dev", "positive_items": ["B001OI52FK", "B06XG21X1X", "B000P1RB9C"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring a compatible Stratocaster and want a coordinated gold hardware upgrade, including a reliable output connection, replacement bridge assembly for proper setup, and a matching jack plate for the body."}
{"candidate_id": "dev-a982292bbe9785aa30bcbfcc", "partition": "agent_dev", "positive_items": ["B01LW96EM8", "B003YTFJWI", "B0002D05WS"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m upgrading my bolt-on Strat-style guitar for aggressive rock and metal, with high-output bridge tones, a versatile single-coil-sized humbucker option, and a properly angled neck using full-contact maple shims."}
{"candidate_id": "dev-a9b98826aad2c9f166326735", "partition": "agent_dev", "positive_items": ["B00M1L1ADM", "B00VTCSP9G", "B01DPCONFM"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a home recording and mixing corner and need stable height-adjustable stands for my monitors, a long cable for electric guitar, and an isolation platform for a larger subwoofer to reduce floor vibration."}
{"candidate_id": "dev-a9d4d08ebba071ae058e2782", "partition": "agent_dev", "positive_items": ["B09WCVS4P6", "B07NWZSBF3", "B077K9CYLW", "B07KFR7HC1"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m upgrading my electric guitar for tighter rock and metal performance with high-output humbucker tones, improved volume and tone controls, matching black control knobs, and locking tuners for better tuning stability."}
{"candidate_id": "dev-a9dd14f0cc31d0bd47bee88d", "partition": "agent_dev", "positive_items": ["B0C5BMZ1K9", "B015XTFNP4", "B0BKZ3GCGR"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a home station to record acoustic guitar covers with clear vocals, using a desk-mounted microphone, headphones for monitoring, a pop screen, and comfortable picks."}
{"candidate_id": "dev-aa0782190ad7a4ea10c0ecfc", "partition": "agent_dev", "positive_items": ["B00H40VYPY", "B0BSGM6CQ9", "B019NY2PKG", "B07C91JT14"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a small live acoustic-rock set and need to amplify my acoustic guitar, restring my electric guitar with heavier strings, and mic several singers or instruments hands-free from an adjustable boom stand."}
{"candidate_id": "dev-aa302ddc7241fb54e0c17e58", "partition": "agent_dev", "positive_items": ["B07BSSFR49", "B00JK9IIO2", "B01N9TGIH7"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m refreshing my drum kit for small live gigs and need a warm, versatile cymbal setup with distinct crash and ride voices, plus a quick-release hi-hat clutch for fast, reliable setup and teardown."}
{"candidate_id": "dev-aa59000580e08721863f862f", "partition": "agent_dev", "positive_items": ["B07X2LN3FV", "B005CJUL94", "B01DPJUXJK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a left-handed electric guitar rig for warm, thick-toned slide playing, with short connections to keep my pedalboard organized."}
{"candidate_id": "dev-aa67d4f75e770812ae292605", "partition": "agent_dev", "positive_items": ["B07NDFJDBV", "B0002FP1DY", "B0007XJWJK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a post-rehearsal care routine for my tenor saxophone and need a way to remove moisture and mineral buildup from the mouthpiece, dry the curved neck, and draw moisture from the bell and bore between playing sessions."}
{"candidate_id": "dev-aa954cdefc9aad991bb6e912", "partition": "agent_dev", "positive_items": ["B0BHSG5C3G", "B07N5J3GTB", "B076H8Y76J"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m recording a simple acoustic guitar-and-vocal demo and need an easy way to strum, keep the instrument accurately tuned, and capture clear singing through a microphone."}
{"candidate_id": "dev-aad9b2999a1f42973facc4d7", "partition": "agent_dev", "positive_items": ["B01N9VUPVE", "B007MY5BDI", "B0179A4ILK", "B08DBDD6CM", "B091MZPYBQ", "B00SMIQ6GE", "B0186MEA9A"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m preparing a small Hawaiian-themed acoustic open-mic set: I need to refresh my guitar, secure its strap, add a playable ukulele with subtle decoration, and connect a vocal microphone and PA speaker while reducing breath and wind noise."}
{"candidate_id": "dev-aae12755b9940fc214a28ebe", "partition": "agent_dev", "positive_items": ["B07V8C74S9", "B003B1DZZW", "B0009EQODO"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing my conga for regular gigs and need a new 11-inch head, replacement rubber feet to keep the setup stable, and shell protectors to prevent damage during transport and performances."}
{"candidate_id": "dev-aae7f703c684735987f96512", "partition": "agent_dev", "positive_items": ["B0BSGM6CQ9", "B074WXM13T", "B08DBDD6CM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for a small live performance and need to restring my electric guitar with a heavier gauge, keep it secure while playing, and connect a vocal microphone reliably to the mixer."}
{"candidate_id": "dev-aafc14ffc9a10c91681c7eaf", "partition": "agent_dev", "positive_items": ["B015WYRWYA", "B00YJ5C46K", "B07KDSZ2TJ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a portable solo acoustic performance and need reliable sound amplification, a way to mount my handheld wireless mic, and convenient stand-side storage for drinks and set lists."}
{"candidate_id": "dev-ababe801319b89065266e7fc", "partition": "agent_dev", "positive_items": ["B007SOPCTK", "B07R28FF44", "B00P0HHNJO"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m putting together a portable electric guitar practice setup with organized foot-controlled effects, quick switching to Drop D, and a compact amp for playing anywhere."}
{"candidate_id": "dev-abce8f106e94b0f12be57e6a", "partition": "agent_dev", "positive_items": ["B07KJM1C9Y", "B0798BPDLL", "B07FQYDZ7V"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a reliable Scottish Highland bagpipe practice setup for learning and regular playing, with a chanter, spare matched reeds, a way to keep it ventilated, and hemp for fitting reeds and sealing the joints."}
{"candidate_id": "dev-abe3e8e96dcd6a668e234a82", "partition": "agent_dev", "positive_items": ["B00KIZROW4", "B095XZJ99J", "B098KXQJVY"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m restringing my 7-string and 6-string electric guitars and want long-lasting coated strings for one, strong tuning-stable strings for the other, plus a simple tool to speed up the change."}
{"candidate_id": "dev-ac01a876c7273cbaf7429eec", "partition": "agent_dev", "positive_items": ["B07BQVJY7W", "B084F2HHWW", "B07N348PKD"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m refreshing my Stratocaster and reorganizing my pedalboard, so I need matching replacement hardware, a suitable 6-foot guitar connection, and customizable short leads to tidy the signal chain."}
{"candidate_id": "dev-ac1a4754c5d8df5345a5fac1", "partition": "agent_dev", "positive_items": ["B0779ST115", "B08PDNZW18", "B0BPKTYTPQ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a guitar care and playing kit with medium picks, automatic humidity control for the instrument case, and refill fluid for my existing compatible string-care applicator."}
{"candidate_id": "dev-ac35068277a76a960d97c9fd", "partition": "agent_dev", "positive_items": ["B093X7TXQQ", "B09WMB8C6Z", "B0B49WJ3WT"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a backyard sports pep rally and need a portable setup for playing and recording energetic drum rhythms, with sturdy beaters and loud handheld bells to get everyone cheering."}
{"candidate_id": "dev-ac4a45bf9ae09ceaeee27354", "partition": "agent_dev", "positive_items": ["B0BT84L827", "B0B7Z4Z88L", "B09NWCD36N"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m starting electric guitar and want a complete setup for practicing at home and playing rock, including the instrument, a versatile amplifier, and assorted picks to try different playing feels."}
{"candidate_id": "dev-ac86e22035be07458ef789ae", "partition": "agent_dev", "positive_items": ["B07797SHP2", "B07VGCH85B", "B07FY9JK7L", "B00VMB7E0U", "B07H9C3D1L"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable setup for learning and caring for my ukulele and other string instruments, with quick chord guidance, secure picking and playing support, protection from dry-case conditions, and an easy way to keep the strings clean."}
{"candidate_id": "dev-ace8bd463bda7937e4b8f108", "partition": "agent_dev", "positive_items": ["B0B8Z2T4PS", "B00EB123MM", "B0BR2WFYL6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring my Telecaster and need compatible chrome hardware to refresh the control plate, replace a missing knurled knob, and install a sturdy adjustable six-saddle bridge for a Tele bridge pickup and through-body stringing."}
{"candidate_id": "dev-acebf92f6b4508052498c87c", "partition": "agent_dev", "positive_items": ["B071GLQQTW", "B09JMYM88H", "B0BPJ4Q6FJ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a layered home recording session and need a safe way to keep two guitars ready, add amplified acoustic tone, and set up a bright Nashville-tuned part."}
{"candidate_id": "dev-ad7a6ec71f2a3e1dac38da99", "partition": "agent_dev", "positive_items": ["B075P2D87L", "B097FMTZCP", "B07F3TDWSW", "B0BCXTPJR2", "B072VH61FV"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my Jazz bass for rehearsals and gigs: I need a replacement scratch plate, a durable leather carrying setup with a secure strap connection, reliable travel protection, and a compact way to hold the bass safely between songs."}
{"candidate_id": "dev-adb59019e756b20da326dc50", "partition": "agent_dev", "positive_items": ["B073RBWJM5", "B09G5QS1VD", "B09NWCD36N"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a versatile electric guitar practice rig and need an amp with responsive clean and overdriven tones, fresh heavier-gauge strings for strong low-end clarity, and a variety of pick thicknesses to find what suits my playing."}
{"candidate_id": "dev-adceff2f583e5ff013b6e7ef", "partition": "agent_dev", "positive_items": ["B0864ZFDY3", "B0C2VGWXJ9", "B013TL4YQW"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a small home rehearsal and recording rig: I need reliable connections for microphones, stereo playback from my phone or laptop, and routing an auxiliary audio source into a quarter-inch input."}
{"candidate_id": "dev-adcfc4f912925f826af798f3", "partition": "agent_dev", "positive_items": ["B0002D0IUM", "B01N8RYSWA", "B0925F8LPD", "B087R2CLQD", "B0002F4M4S", "B005C429XU"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m putting together a compact, gig-ready drum kit for local shows and need responsive bass-drum and hi-hat hardware, a full cymbal setup, discreet drum mic mounting, and protective cases for transport."}
{"candidate_id": "dev-addf7d057761d98993a3ecd2", "partition": "agent_dev", "positive_items": ["B01A0D3SSC", "B098KXQJVY", "B07DWRNL54"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refreshing my instruments for a home recording session: I need fresh coated strings for my 7-string electric guitar and long-scale 5-string bass, plus a white three-ply tremolo cavity cover for my Strat-style guitar."}
{"candidate_id": "dev-adf359bd78747099a531a0ab", "partition": "agent_dev", "positive_items": ["B08JMQR2JK", "B015XLDQD8", "B01DPCONFM", "B0BSGM6CQ9"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small electric-guitar rehearsal area and need secure stands for several instruments, a reliable cable for connecting to an amp, fresh heavier-gauge strings, and an easy clip-on tuner for quick setup."}
{"candidate_id": "dev-ae327c344bbb48f51d22cc8c", "partition": "agent_dev", "positive_items": ["B08JMQR2JK", "B004ZZVHGW", "B07BQ8JQZ4", "B07J5QP9ST"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a beginner-friendly home jam space and need an electric guitar practice setup, secure stands for multiple instruments, a replacement pop-filtering grille for the vocal mic, and color-coded tape to keep microphones organized."}
{"candidate_id": "dev-ae4ccf73b4f21d2dd412bde6", "partition": "agent_dev", "positive_items": ["B09V91H5XM", "B01D42PQCW", "B016YKWKL6", "B0002F79E8", "B0002F5C7Y"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m recording a lively acoustic song at home and need comfortable guitar support, a condenser mic with vibration isolation, and a few handheld percussion sounds to add rhythmic texture to the arrangement."}
{"candidate_id": "dev-ae6048e7f2d08cc0f7c21100", "partition": "agent_dev", "positive_items": ["B093YKLWVN", "B0B95V41NR", "B09P3ZVLV8"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my guitar and vocal setup for a small live performance and need to refresh the fretboard, connect the guitar to my pedalboard or amp, and run a balanced microphone connection to the mixer."}
{"candidate_id": "dev-ae99b2c8222e06fc73d9673c", "partition": "agent_dev", "positive_items": ["B0BT9R8MMV", "B0BSCF2FD7", "B06XSB1JZN", "B07Y6TM959"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a comfortable home digital-piano practice station and need reliable power, hands-free sustain, smooth foot-controlled volume or expression, and an adjustable cushioned bench for longer playing sessions."}
{"candidate_id": "dev-aec0f33c9a00c6e6c2525a1a", "partition": "agent_dev", "positive_items": ["B09Z6QL7B3", "B003AYJYG4", "B07LG5NWTF"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing my Stratocaster for more stable tuning and a fresh psychedelic tone, so I need compatible tremolo bridge mounting hardware, upgraded string guidance, and a compact analog phaser for my pedalboard."}
{"candidate_id": "dev-af28b2d4b6320987a0b6d8f7", "partition": "agent_dev", "positive_items": ["B0BK6T5BSM", "B000EEL7B8", "B07CVSKHDV"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a practical saxophone practice setup and need comfortable playing support, a secure place to rest the instrument between sessions, and basic supplies for keeping it clean and well maintained."}
{"candidate_id": "dev-af2ae412c8483e5529cbcd1f", "partition": "agent_dev", "positive_items": ["B00ICR2UL0", "B00ICR2T20", "B00ICR2VR8", "B07MBHSTG1"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a flat-wall home music practice area and need accessible vertical storage for my clarinet, soprano saxophone, and flute, plus easy-playing replacement reeds so the clarinet is always ready to play."}
{"candidate_id": "dev-af45cda3b8cd730319aa857e", "partition": "agent_dev", "positive_items": ["B071V34XYF", "B0BT9R8MMV", "B01B15JPCQ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a beginner-friendly home piano practice station with weighted keys, an adjustable portable stand for comfortable seated or standing play, and a realistic sustain pedal."}
{"candidate_id": "dev-af4f21d26fbd364968b9076d", "partition": "agent_dev", "positive_items": ["B0BPJ4Q6FJ", "B0049OCE8E", "B0BTC9YJ2W"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my guitars for a home recording project: I need warm, light strings for a 12-string acoustic, a high-strung electric setup for layered Nashville-style parts, and replacement covers for my Strat pickups."}
{"candidate_id": "dev-af50b51923b02fb6dfb2a546", "partition": "agent_dev", "positive_items": ["B01C5TBVH4", "B0BKR2ZM9X", "B003AYRBWI", "B0B81D5BB4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring my Fender Strat-style electric guitar and need to replace the jack hardware, install a compatible chrome tremolo bridge, improve tuning stability, and restring it with smooth, warm-toned light-gauge strings."}
{"candidate_id": "dev-af7bb80eafa34be60b5f26b0", "partition": "agent_dev", "positive_items": ["B071H7DRWY", "B0BR2VF53F", "B0C6HZ2BJ4", "B074KRRZCH", "B0064RTS0G"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refreshing my home guitar setup and need supplies to restring an electric, replace a worn volume or tone control, clean and polish the finishes, and organize several instruments on wall mounts and a padded folding stand."}
{"candidate_id": "dev-af81e46f0643360d4b38f4be", "partition": "agent_dev", "positive_items": ["B0753PSL2D", "B091SM596D", "B00F912X96"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m upgrading my beginner drum kit for rehearsals and small gigs and need a coordinated starter cymbal setup with extra accent range, plus a warm replacement head for the bass drum."}
{"candidate_id": "dev-af90e1253cc2ba864d049e8a", "partition": "agent_dev", "positive_items": ["B09JZDMWV4", "B00CSK53UC", "B0731YLWY8"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a versatile percussion setup for a school concert, with tools for soft jazz drum textures, bright marimba or vibraphone parts, and dramatic cymbal swells and crash effects."}
{"candidate_id": "dev-af9f3753ceb26615ac6ccc34", "partition": "agent_dev", "positive_items": ["B09RJZSQML", "B0C159Y982", "B08MWTTKWG", "B08ZFQ8GLV"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a beginner-friendly ukulele recording session and need picks for strumming, hand percussion for rhythm, and a sensitive microphone to capture vocals and instruments, plus basic learning and tuning help."}
{"candidate_id": "dev-afb4150da5db7bb66ff34cc9", "partition": "agent_dev", "positive_items": ["B09BF8XDF4", "B08NW59BJP", "B08XZH8DTM", "B08PL5YSCC"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up an acoustic-electric guitar for regular fingerstyle playing and need a reliable instrument, long-lasting medium strings, and compatible bridge hardware for a clean setup and secure string changes."}
{"candidate_id": "dev-afb74534cdd550e07add0f22", "partition": "agent_dev", "positive_items": ["B008YLIRJ8", "B07KFQLTCP", "B00T3FTEMS", "B00UORVSSC", "B00T3GL2XQ"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m preparing for a live jazz performance switching between alto and soprano sax, and need to experiment with several reed styles while getting a clean, protected signal from my compatible Shure instrument microphone."}
{"candidate_id": "dev-afc4c7c6935ad178469ea0ef", "partition": "agent_dev", "positive_items": ["B0BLLDYSL7", "B00M6SJ3CU", "B07MZYNZ1C"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a comfortable home keyboard practice and singing station with adjustable seating, hands-free vocal support, and a protective cover for keeping the instrument clean between sessions."}
{"candidate_id": "dev-afd9f1c0d67e2bf93895f123", "partition": "agent_dev", "positive_items": ["B0BLM1W9XH", "B07YXDFM62", "B01EA91TI8"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a vocal rehearsal station and need to connect a microphone to a 1/4-inch audio input with a short balanced cable, match the microphone and input impedances, and keep a chromatic pitch reference for warming up and staying in tune."}
{"candidate_id": "dev-afde7f87fefd4d35797dd941", "partition": "agent_dev", "positive_items": ["B00OPC5Y5K", "B0BR2W1RH4", "B01CBC12QU", "B00LIW7N9U", "B07JYJH524"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a small live rock show and need gear to repair and tune my Stratocaster, replace a bass drum pedal, mic vocals and instruments, route multiple XLR sources to the mixer, and connect the mixer to the speakers."}
{"candidate_id": "dev-b02d55e45b0c4081e23023f9", "partition": "agent_dev", "positive_items": ["B07MZYNZ1C", "B08R5GM6YB", "B07GFH8NTB"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a comfortable home acoustic-guitar practice station and need long-lasting light strings, an all-in-one tool for restringing, and an adjustable padded seat for playing."}
{"candidate_id": "dev-b03fdf1774b77e738678b979", "partition": "agent_dev", "positive_items": ["B0179A4ILK", "B0B8M2Q1DS", "B0BHSG5C3G"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my guitar ready for rehearsals and small gigs and need comfortable adjustable shoulder support, a simple way to keep the strap securely attached, and quick clip-on tuning before I play."}
{"candidate_id": "dev-b0793aef7c7aeede5fe93119", "partition": "agent_dev", "positive_items": ["B00NARHNCS", "B07MJV8XG1", "B09G5KLKX2", "B0BFKKVQZT"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m servicing both my acoustic and electric guitars and want to refresh their strings, measure and adjust setup dimensions accurately, and clean up uneven frets with the right maintenance tools for a reliable playing feel."}
{"candidate_id": "dev-b0a755e4425cb1cac63acd10", "partition": "agent_dev", "positive_items": ["B07CQZB5CX", "B00T3G1164", "B01E0TCCIO"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together an Eb alto sax setup for starting regular practice and lessons, and need the instrument, a responsive mouthpiece, and suitable reeds for playing different styles."}
{"candidate_id": "dev-b0f0c4422678e0a968640ce9", "partition": "agent_dev", "positive_items": ["B0BCF358BW", "B07795XHLH", "B0BT84L827"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m putting together an amplified setup for playing a concert ukulele at home and small gigs, with a removable contact pickup, strong clean volume, and built-in effects."}
{"candidate_id": "dev-b0f462be16218909cb9985ed", "partition": "agent_dev", "positive_items": ["B0BZX4HHSB", "B005HN20J4", "B075TS3934"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I'm putting together a portable setup for small live gigs and need to protect my standard drum kit in transit while organizing a compact pedal rig with lush ambient delay and reverb."}
{"candidate_id": "dev-b11175fc7d597c9516c4fa85", "partition": "agent_dev", "positive_items": ["B0B8Z34DV5", "B0002D0L5E", "B018VAQWEI", "B078L11275"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring my electric guitar for comfortable practice and need adjustable foot support, replacement .009 strings, a cleaner that protects the finish, and precise six-in-line tuners that trim excess string and hold tuning securely."}
{"candidate_id": "dev-b12f41566318a0f62b59b43a", "partition": "agent_dev", "positive_items": ["B014PEZVKU", "B09NWCD36N", "B09V91H5XM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up my guitar for regular rehearsals and small gigs, and want comfortable adjustable support, a more secure strap connection, and several pick gauges to find the playing feel and tone I prefer."}
{"candidate_id": "dev-b13d242a34140fc95a035ceb", "partition": "agent_dev", "positive_items": ["B0B8Z34DV5", "B09CGJ6XK2", "B0BQ4HSKC9"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m getting my acoustic guitar ready for a small live recording and need supplies to clean and protect its finish, quickly change keys during songs, and connect it reliably to my microphone or audio equipment."}
{"candidate_id": "dev-b1c16b881cf6d68382929778", "partition": "agent_dev", "positive_items": ["B071GLQQTW", "B09V91H5XM", "B074TNDXM2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up my acoustic guitar for live performances and need a removable way to amplify its natural tone, add versatile modulation effects, and keep it comfortable and secure while standing."}
{"candidate_id": "dev-b1e9868e4914f3e7a1667712", "partition": "agent_dev", "positive_items": ["B0BYXVCSGG", "B01DE4DVO0", "B0027V760M"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a small acoustic live performance and need vocal amplification, guitar connectivity, and balanced signal routing to the mixer."}
{"candidate_id": "dev-b1f0671ac76c175064a8f59d", "partition": "agent_dev", "positive_items": ["B0BXT41XC6", "B0BFKKVQZT", "B08BW2TBD7"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my acoustic and electric guitars ready for rehearsals and gigs, including restoring pickup control, refreshing the acoustic’s bright tone, and keeping both instruments safely supported between sessions."}
{"candidate_id": "dev-b20d4632f9f6c3d52072c2e8", "partition": "agent_dev", "positive_items": ["B01MQKIZ4M", "B00VSYN25M", "B00P0HHNJO"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a portable electric guitar practice setup and need comfortable hands-free support, a cable to connect my instrument, and a small amp for practicing anywhere."}
{"candidate_id": "dev-b2144e865faf832a2a69e786", "partition": "agent_dev", "positive_items": ["B00CGFRJ2Y", "B0BCL4K9GF", "B09BF8XDF4", "B09B45DLQG", "B00H4PEMM6", "B08R5GM6YB", "B00IFOTSJW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my acoustic guitar for a focused home practice session: restring it, tune accurately, work through capo exercises with a steady beat, play comfortably, and monitor my sound privately without disturbing anyone."}
{"candidate_id": "dev-b22177f6bfc52e7f0e36406d", "partition": "agent_dev", "positive_items": ["B0C3PY6TBF", "B07V4GG652", "B07TDNWYSB", "B01DE4DTAG", "B08DBDD6CM", "B091MZPYBQ"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a quiet home rehearsal and recording session where I can play electric guitar with effects, sing through a handheld microphone, practice drums quietly, and stay comfortable for extended sessions with reliable connections and basic wind protection."}
{"candidate_id": "dev-b2313213e3a6cb8a9ba76e53", "partition": "agent_dev", "positive_items": ["B0BK3HH9JV", "B0002GWRQM", "B00HTWQX1W", "B01AW50JXA"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a reliable setup for playing slide blues at small live gigs, with comfortable shoulder support, quick access to picks, secure wireless gear storage, and a bright, expressive glass-slide tone."}
{"candidate_id": "dev-b24d0ef60429a27e19d87bbe", "partition": "agent_dev", "positive_items": ["B00BVH68NO", "B0756P1DV8", "B09KWWS7DH"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m upgrading my P-Bass for a punchier, detailed tone and want a reliable way to send it to either of two amplifiers or both, with a long, low-interference cable for rehearsals and gigs."}
{"candidate_id": "dev-b27208acf3bfb0da6c69d337", "partition": "agent_dev", "positive_items": ["B075SW4QC4", "B07NKN8PHK", "B07M7L7SB9"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring an imported electric guitar and want to refresh its control hardware with metric mounting hardware, gold control knobs, and a curved chrome jack plate so the electronics and exterior match cleanly."}
{"candidate_id": "dev-b27a36bfc1a3e339edf3882e", "partition": "agent_dev", "positive_items": ["B07M65JPZG", "B00P8CPXOI", "B08HMWSQV6", "B0C6CKL14J"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m organizing an evening community percussion circle with a hands-on rhythm session, varied hand-and-frame drum sounds, a decorative global music display, and colorful illuminated participation props for the closing celebration."}
{"candidate_id": "dev-b2bc64ba89669072bc42d87c", "partition": "agent_dev", "positive_items": ["B0002E3FBA", "B077GK1J7N", "B0B95V41NR"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up an expressive electric-guitar effects rig and need a classic wah sound, reliable 9-volt power, and a short, low-noise connection to integrate the pedal cleanly."}
{"candidate_id": "dev-b2cbc5a3e74335cd6708b6ad", "partition": "agent_dev", "positive_items": ["B09R2TMLJR", "B019NY2PKG", "B091MZPYBQ", "B07CYRYQ8G"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m recording a small live guitar-and-vocal session and need an eight-channel setup for several microphones, a tall adjustable stand for positioning one mic, protection against wind and spit, and precise picks for articulate guitar parts."}
{"candidate_id": "dev-b30e5f393ae4fb29317abf0f", "partition": "agent_dev", "positive_items": ["B0096Q2UT8", "B07FYL7LW1", "B00H35YIJE", "B06X1C3GWZ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a mobile bass setup for small gigs and rehearsals, with an easy-to-move amp, freedom from instrument cables, and a comfortable, securely attached strap for performing."}
{"candidate_id": "dev-b30f8074182edbffda1fdaf3", "partition": "agent_dev", "positive_items": ["B00M9BSZMI", "B09YDBKT7M", "B079TLFL33", "B093YKLWVN", "B08R5GM6YB", "B08BJGBHN7"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I'm getting my guitar ready for regular rehearsals and a small gig, so I need to clean and condition the fretboard and strings, restring it, keep the strap secure, connect reliably to my amp, and try different picks."}
{"candidate_id": "dev-b35eed2b3702ff52945fe28c", "partition": "agent_dev", "positive_items": ["B09ZSKNN1R", "B014RGKMOG", "B09ZTHDXTD"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small stage lighting show and need reliable 3-pin DMX connections to link several fixtures to my controller, plus proper termination for the end of the lighting chain."}
{"candidate_id": "dev-b3949b4f99799b2037c28170", "partition": "agent_dev", "positive_items": ["B00WQI2TM6", "B08BJGBHN7", "B0BSGM6CQ9"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refreshing my electric guitar for heavier-feeling practice sessions and recording, with durable replacement strings, a variety of picks to test different tones, and an easy clip-on tuner for reliable setup."}
{"candidate_id": "dev-b39b346562cc4419f62996e7", "partition": "agent_dev", "positive_items": ["B0006Z8FTM", "B001DDU8PU", "B07477HRCN"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact keyboard-based home studio for composing and recording, with a stable two-tier playing station, elevated monitor placement, and a flexible computer audio connection for microphones, instruments, headphones, and monitor outputs."}
{"candidate_id": "dev-b39c0642d63796e978b03b22", "partition": "agent_dev", "positive_items": ["B0BT862N4P", "B01DPCONFM", "B08JMQR2JK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home electric-guitar practice space where I can plug in, switch between clean and driven tones, play along with music privately, and keep multiple instruments safely supported when I’m not playing."}
{"candidate_id": "dev-b3bc84713909521028e899bf", "partition": "agent_dev", "positive_items": ["B00MB2Q5OA", "B0002D00BE", "B0B8M2Q1DS"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m starting to learn bass and need a compact electric instrument, a comfortable adjustable way to wear it, and reliable tools for tuning and keeping steady practice time."}
{"candidate_id": "dev-b3ec9d30247babf0f13130de", "partition": "agent_dev", "positive_items": ["B06X9KG3HW", "B07DWRNL54", "B098KXQJVY"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home-studio band rehearsal and need fresh, long-lasting strings for my seven-string guitar and five-string bass, along with balanced XLR leads to connect microphones to the PA."}
{"candidate_id": "dev-b405438984cf79827ab1829f", "partition": "agent_dev", "positive_items": ["B079C7K7TD", "B08VF4K987", "B07ZGMNLVW"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing a small live performance and need a compact setup for keeping several instruments in rhythm and precisely tuned, while checking and troubleshooting audio cables before rehearsal and the show."}
{"candidate_id": "dev-b41021758b3300e87fe39f6b", "partition": "agent_dev", "positive_items": ["B00O5ELJ66", "B00BAMHHOO", "B0C3LDN2TN"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a small community karaoke and speaking event and need hands-free and handheld vocal microphones plus reliable cabling for the PA system."}
{"candidate_id": "dev-b44826642ecb6ccbb80cb440", "partition": "agent_dev", "positive_items": ["B0BR2VMJYV", "B0037Z6PPO", "B00L9R9YVO", "B00VRPHV2M", "B098KXQJVY"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a compact rehearsal and recording rig for my band: I need to mic the bass drum, route microphones through a small mixer, connect them properly, and restring my seven-string electric guitar."}
{"candidate_id": "dev-b4845eb29d5c2203ee572649", "partition": "agent_dev", "positive_items": ["B081TYHXMH", "B009YSF324", "B0002MSPBM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact drum setup for rehearsals and small gigs, and need a secure tom-mounting solution, dependable single-kick control, and convenient protection for transporting the pedal."}
{"candidate_id": "dev-b4c0d1fa45945080be6ffa91", "partition": "agent_dev", "positive_items": ["B0B8F6LD9F", "B0B1SF7C4M", "B0BZJNPDJS", "B00R15F6I8", "B09MQL2CVV", "B09G5KLKX2"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m restoring and setting up a Strat-style electric guitar and need parts for rewiring the controls, servicing the tremolo, fitting fresh strings, tuning and playing it, plus a protective gig bag for transport."}
{"candidate_id": "dev-b534cde9c29aebaf48bb2c74", "partition": "agent_dev", "positive_items": ["B09VTHS814", "B00TR1MLR8", "B0B6H7J2SN"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing my Gibson-style Les Paul for home recording and want to refresh its controls and humbuckers with matching replacement hardware, then connect the guitar to my computer through an interface for recording."}
{"candidate_id": "dev-b55f425847f3f6c5f06c6bb1", "partition": "agent_dev", "positive_items": ["B0BKZ3GCGR", "B07BSHS3BX", "B07NKRZ1KQ", "B01K1EJQ9U"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a colorful guitar practice and performance corner with eye-catching strings, reliable playing accessories, convenient pick storage, and a secure way to display the guitar on the wall."}
{"candidate_id": "dev-b5a77ed95ac9d4011fb48e3e", "partition": "agent_dev", "positive_items": ["B0C4XQ496G", "B09V91H5XM", "B0151KT2B6", "B06Y5HQYWR"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a small band rehearsal setup around an acrylic drum kit, with adjustable floor stands for vocal microphones, while safely carrying my concert ukulele and using a comfortable adjustable strap for my guitar."}
{"candidate_id": "dev-b5c539dc46d7df29d58a10c6", "partition": "agent_dev", "positive_items": ["B01KG3MYZ4", "B077TL7VJY", "B072JF6DCN"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m refurbishing my Strat-style electric guitar and practice amp, needing quieter HSS electronics coverage, a compatible chrome tremolo arm, and a suitable 12-inch 8-ohm guitar speaker upgrade."}
{"candidate_id": "dev-b5cb6da7a3269ed206586fa0", "partition": "agent_dev", "positive_items": ["B07N5J3GTB", "B07NSWD8BR", "B09BF8XDF4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for a small acoustic live performance and need to refresh my guitar’s tone, capture clear vocals, and securely position a compatible PA speaker at an adjustable height."}
{"candidate_id": "dev-b5ceaa50709b950f75526edb", "partition": "agent_dev", "positive_items": ["B0BK9ZT28X", "B093YKLWVN", "B07T41F22R"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring an older Les Paul-style guitar and need supplies to clean and condition the fretboard, refresh the strings and hardware, and replace worn control knobs with a matching clear set."}
{"candidate_id": "dev-b612b176a0f10ce4cc48923e", "partition": "agent_dev", "positive_items": ["B08Z6TDJZ9", "B00IPHSRN2", "B0002D01K4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I'm getting my Les Paul ready for gigs and travel, so I need a secure way to attach the strap, sturdy protection for transporting it, and reliable low-light illumination for reading several pages of music onstage."}
{"candidate_id": "dev-b62b155bc6ea315728186aad", "partition": "agent_dev", "positive_items": ["B00356J8KE", "B01JPEH81A", "B07Y6V2WKV"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m building a live guitar setup for small venues and need versatile onboard effects, reliable hum-free connection to the PA, and enough shielded balanced cable to make custom stage-length runs."}
{"candidate_id": "dev-b6314cb9f0ca886e54994ee4", "partition": "agent_dev", "positive_items": ["B0BT9R8MMV", "B00TZH5DJW", "B0BSCF2FD7"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a comfortable electronic keyboard practice station at home and need stable adjustable support, a cushioned seat for long sessions, piano-style sustain control, and gear that folds away neatly when not in use."}
{"candidate_id": "dev-b686c8661e0dff0d931f2def", "partition": "agent_dev", "positive_items": ["B000B6FADU", "B001LU39F6", "B07DMS2QNL"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m organizing a beginner-friendly unplugged jam and need two affordable soprano ukuleles for players to strum together, plus a full-size cajón that can provide adjustable snare-style rhythm without a drum kit."}
{"candidate_id": "dev-b686cdb49d0e209817044062", "partition": "agent_dev", "positive_items": ["B0107BCV1M", "B08TN2G4K6", "B012U3FNT2", "B0919HG8S7"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a compact home jam corner where I can practice electric guitar and bass through a small tube combo amp, then safely hang the instruments on the wall when finished."}
{"candidate_id": "dev-b6b0b76d268466e9c1dfb9d1", "partition": "agent_dev", "positive_items": ["B09YQZWC2V", "B01LGEH9X4", "B00H35YJ8O", "B014D2970O"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring my Tele-style electric guitar and want to upgrade its vintage-style pickups and selector, replace the volume and tone controls, and finish the project with fresh light-gauge strings."}
{"candidate_id": "dev-b6f89b2179cd94b223559051", "partition": "agent_dev", "positive_items": ["B07MG8PHF2", "B01NAZMWZK", "B092LF6RLS", "B00JL5HHJC"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a small live music performance and need padded transport for my compact controller, a way to secure my wireless guitar receiver to my strap, a long balanced connection to the PA, and water-based fluid for the fog machine already on site."}
{"candidate_id": "dev-b71a012cff153ba735c28478", "partition": "agent_dev", "positive_items": ["B0007Y8GSM", "B0B31RCL2G", "B00N5THDR6"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a compact acoustic recording session with two guitars ready to grab, a gentle shaker part, and enough clean mixer inputs to balance the instruments and microphones."}
{"candidate_id": "dev-b748a9f66c121eda8e94a53e", "partition": "agent_dev", "positive_items": ["B07KXV9LZ9", "B07CRK35NG", "B07Q6XMDHN"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my electric guitar ready for rehearsals and need to replace a plain .019 string, keep the strap securely attached, and have picks handy while playing."}
{"candidate_id": "dev-b7548ab8b387ea1b6694c001", "partition": "agent_dev", "positive_items": ["B0BPLFP5P6", "B00CIO6BEA", "B0BSCFTV2G"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a reliable acoustic guitar practice and performance setup, with easy clip-on tuning, quick key changes, and sturdy picks that produce a warm, full tone."}
{"candidate_id": "dev-b7595a7910f16133253d94dd", "partition": "agent_dev", "positive_items": ["B08BJGBHN7", "B074WXM13T", "B0BTC9YJ2W"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my 12-string acoustic guitar ready for a performance and need warm-sounding replacement strings, a comfortable secure strap, and a variety of picks to test different playing styles."}
{"candidate_id": "dev-b77c9900bb7097e1f9e4df8e", "partition": "agent_dev", "positive_items": ["B0BGW9FZM8", "B0012NGBWK", "B000CBNII8", "B082WVC3RT", "B0002F51HK"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m refurbishing my drum kit for a warm, expressive jazz recording session and need to replace the playing surfaces, improve the snare’s release and sensitivity, tune everything accurately, and add a foot-controlled tambourine accent to the hi-hat."}
{"candidate_id": "dev-b785a153fa0869358956267d", "partition": "agent_dev", "positive_items": ["B00JA4T850", "B00IFOTSJW", "B074WXM13T"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for my first live guitar performance and need a reliable way to stay in tune, play comfortably while standing, and keep spare picks handy throughout the set."}
{"candidate_id": "dev-b79143798f1c9beb736d2ef4", "partition": "agent_dev", "positive_items": ["B00JXOCJDK", "B0BPJ4Q6FJ", "B07D5W5X3Z", "B08R5GM6YB", "B092LF6RLS", "B07YJZGP5X"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small rehearsal and recording rig for electric guitar and bass, with fresh strings, reliable instrument and microphone connections, and a compact low-profile stand for positioning close-to-floor audio equipment."}
{"candidate_id": "dev-b79f0ae9435f4e90693bf7a6", "partition": "agent_dev", "positive_items": ["B09PGYCGHM", "B07FF4J1P7", "B0C4XQ496G"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a compact setup for a small live performance and need adjustable mic support, durable drumstick storage, and padded transport protection for my floor tom."}
{"candidate_id": "dev-b7a43db285da9cd1a9ca1595", "partition": "agent_dev", "positive_items": ["B0B3VQQ6XY", "B072PY3LT6", "B01M03W1HD"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m rebuilding a Strat-style electric guitar and want compatible replacement hardware and prewired electronics to finish the instrument, plus a versatile floor effects unit for testing and shaping its sound during rehearsals."}
{"candidate_id": "dev-b7be95980f266e5bed5ade88", "partition": "agent_dev", "positive_items": ["B009AK3NDW", "B0C5PRQ9K6", "B078KX8YJD"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact rock/electronic rehearsal rig and need to refresh a 10-inch tom for a deep, short sound, add a flexible mini-key synth, and connect the amp to its speaker reliably."}
{"candidate_id": "dev-b7db297c6d4d8cab7182380a", "partition": "agent_dev", "positive_items": ["B07ZVHBFNJ", "B019NY2PKG", "B09RN7GR8F"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a home recording station for vocals, guitar, and electronic instruments, and need clean studio-quality capture, flexible connections for several sources, and a secure microphone position that adjusts to my recording setup."}
{"candidate_id": "dev-b7dc5fb766d8d5fce6711e4b", "partition": "agent_dev", "positive_items": ["B00H7Y2ZXM", "B00BQYODWK", "B09HL6MZ45", "B0030YD3IY", "B00RVE9X06", "B00VSYN25M", "B0BR2V4KZT"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m preparing a small rock-band live setup and need to refresh my drum kit’s snare and cymbal sounds, add a cowbell accent, equip the drummer for rehearsals, and restring and connect an electric guitar."}
{"candidate_id": "dev-b7e28cab1bdfef260f1c58ef", "partition": "agent_dev", "positive_items": ["B0002E596E", "B0BJB9NN5C", "B00LMOYIKQ"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing my electric guitar and combo amp for blues and classic-rock gigs, and need a warmer vintage-style setup with reliable stage support and a personalized look."}
{"candidate_id": "dev-b826fd055a46435ec2499d03", "partition": "agent_dev", "positive_items": ["B00A9I706U", "B0BSGM6CQ9", "B005ES7VSW"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m getting my electric guitar and vocal setup ready for a small live gig: I need heavier-gauge replacement strings, a mic with stand and long XLR connection, plus compact RGB lighting for the stage."}
{"candidate_id": "dev-b83dbe220177c9ad1dd3e1f2", "partition": "agent_dev", "positive_items": ["B0002F77LI", "B0919G7WL3", "B0151KT2B6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable setup for small community music workshops, carrying a concert ukulele and 76-key keyboard while two singers or instructors use wireless headset or lapel microphones through a PA. I need practical protection and transport for everything."}
{"candidate_id": "dev-b84cb54a1b934e7a85f8c9fd", "partition": "agent_dev", "positive_items": ["B0711P1YKH", "B001E95KEC", "B073XXLVWT", "B01C2T8HDI", "B07Q6L4YMC"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a compact pedalboard for a live acoustic-and-electric guitar set, with dependable tuning, acoustic signal shaping, switchable high-gain tones, expressive volume control, and isolated power for everything."}
{"candidate_id": "dev-b88032090325b0cf32902481", "partition": "agent_dev", "positive_items": ["B098PJTYT9", "B0002IAJ5Q", "B0BQ4HSKC9"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m wiring a compact live-recording rack and need to route multiple stage microphone inputs over a long run, connect them through a rack-mounted patch point, and make short XLR connections for setup and testing."}
{"candidate_id": "dev-b8f11bf04176890214046917", "partition": "agent_dev", "positive_items": ["B08NXWWVSQ", "B08Z6TDJZ9", "B009AS1FLG"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a dimly lit singer-songwriter rehearsal where I can keep several pages of music steady and visible while recording my vocals and electric guitar into an iPad."}
{"candidate_id": "dev-b8fc6e933c0fdd4e7734d977", "partition": "agent_dev", "positive_items": ["B01AAX6KGY", "B015JTEBN8", "B091MZPYBQ"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a small home acoustic guitar and vocal recording session and need adjustable hands-free mic placement, protection from breath and air noise, plus a secure way to rest my guitar between takes."}
{"candidate_id": "dev-b931d573f976671e10900931", "partition": "agent_dev", "positive_items": ["B09KWWS7DH", "B079YDQRSJ", "B015XF3WBK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a warm, classic overdrive rig for electric guitar practice and gigs, with reliable long instrument connection and short pedalboard patch links for clean signal flow."}
{"candidate_id": "dev-b93ff3de193ffe8a2d6de177", "partition": "agent_dev", "positive_items": ["B0002D01K4", "B01F4QCP84", "B075MPFFRV", "B07RS1QKGK"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refurbishing my Epiphone Les Paul for gigging and need matching cosmetic upgrades, reliable stage tuning, and a sturdy way to transport and protect it."}
{"candidate_id": "dev-b95a5906f1a204fe9fee320c", "partition": "agent_dev", "positive_items": ["B0009QX16K", "B01HHPYPEM", "B075PY3QNP", "B0B95V41NR", "B082XMFWFK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact seated solo performance rig with an adjustable folding stand for my keyboard, supportive backrest for long sessions, atmospheric delay and modulation effects, and a short reliable cable for connecting the instruments and pedals."}
{"candidate_id": "dev-b96c00ad5b673c2f03d3d695", "partition": "agent_dev", "positive_items": ["B0C3LDN2TN", "B00MW6VMFM", "B0BT9R8MMV"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact solo keyboard performance rig and need a way to mount two keyboards, sing hands-free while playing, and add expressive piano-style sustain to my MIDI setup with connections that work with common audio inputs."}
{"candidate_id": "dev-b9939e17372b7a78dd61ad2c", "partition": "agent_dev", "positive_items": ["B07BJ2G58G", "B0BG95DG2H", "B0BSGM6CQ9", "B07635X9VJ", "B0769VKBTZ", "B016R0GF3M"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a birthday guitar refresh and practice setup for my brother, including fresh heavier-gauge strings, plenty of reliable picks plus a keepsake pick, gentle finish care, and short, quiet cables for connecting his guitar and pedalboard."}
{"candidate_id": "dev-b9ae7cfec3ef59eb2d67f41f", "partition": "agent_dev", "positive_items": ["B0BCXKFMKD", "B09D962XZ9", "B0BPJ4Q6FJ", "B00646MZHK", "B002NLSCPE"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I'm refreshing my 6-string Stratocaster for studio doubling and need a compatible 11-hole guard for its three single-coil pickups, light Nashville-tuning strings, reliable tuning, secure strap attachment, and durable picks for clear, controlled playing."}
{"candidate_id": "dev-b9b1967049e973be0ad28640", "partition": "agent_dev", "positive_items": ["B01FFIIPUS", "B00AZG82BS", "B091D4QKS5", "B00OF7FK8Q"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing an electric guitar and need new humbucker surrounds, fresh control knobs, and a mixed-value wiring setup using 250K audio-taper controls alongside a 500K custom-taper control for separate adjustments."}
{"candidate_id": "dev-b9da3d0236aadfeec0e748c1", "partition": "agent_dev", "positive_items": ["B000T5PPQA", "B003BGR9HC", "B07C9YCY5J"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring a vintage tube hi-fi system with a turntable and need compatible amplifier and rectifier tubes, plus an easy-to-install diamond replacement stylus to get everything playing properly."}
{"candidate_id": "dev-b9e00022fc319d27ac2e2eb7", "partition": "agent_dev", "positive_items": ["B00KNQ0T0C", "B09V91H5XM", "B09G5KLKX2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my electric guitar ready for rehearsals and live playing and need fresh strings for a warm classic tone, a comfortable adjustable strap, and secure hardware to keep it safely attached."}
{"candidate_id": "dev-ba2d009fcc990cf4065b1954", "partition": "agent_dev", "positive_items": ["B098KXQJVY", "B0047VIXBG", "B07ND4MZMW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for a 7-string guitar performance and need reliable setup support, including fresh long-lasting strings, smoother playing, and a stable adjustable stand for my music."}
{"candidate_id": "dev-ba41fc72a83612cc77255b91", "partition": "agent_dev", "positive_items": ["B09Z7HBFPN", "B06XWLXCFC", "B0C4XQ496G"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact home setup for practicing and recording a mariachi-style ukulele performance, with hands-free chest-height instrument support, small-instrument amplification, and adjustable stands for positioning microphones around the player."}
{"candidate_id": "dev-ba4eaf83f6f00b7dbdb27b93", "partition": "agent_dev", "positive_items": ["B0002F56CK", "B007VE7FKQ", "B0BXT1HP18"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m assembling a distinctive drum setup for practice and performance, with a visually striking 14-inch snare, crisp full-bodied 14-inch hi-hats, and cushioned cymbal isolation for better suspension and playing feel."}
{"candidate_id": "dev-ba523db9615d31d45a304b01", "partition": "agent_dev", "positive_items": ["B015JTEBN8", "B0BSGM6CQ9", "B09R2TMLJR"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing to record an electric guitar demo and need heavier-gauge strings for a solid feel, precise picks for articulation, and an adjustable stand to position a microphone by my amp."}
{"candidate_id": "dev-ba78528e46413ae6d3917e9e", "partition": "agent_dev", "positive_items": ["B0BCXTXB4Y", "B096K2LZKH", "B0CBSQZD9N"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m restoring my Jazzmaster for reliable gigging and need a stable replacement bridge, a comfortable leather strap, and secure strap-lock hardware."}
{"candidate_id": "dev-ba81da98767cbd7b7fd2336f", "partition": "agent_dev", "positive_items": ["B0BR2N43GC", "B09M792XV6", "B0002GU0XO"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m upgrading my electric guitar for high-output hard rock playing and need a neck pickup, fresh aggressive-sounding strings, and durable heavy picks for installation, setup, and rehearsals."}
{"candidate_id": "dev-ba987ef66742cca00db45527", "partition": "agent_dev", "positive_items": ["B07B8WL33G", "B09S2VB3KW", "B07MMJX9T7", "B0742RB7JK", "B07DK59QNR"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a tidy home guitar practice station and need safe wall storage, finish and fretboard care, reliable picks for playing, and a compact way to power several effects pedals from one outlet."}
{"candidate_id": "dev-ba98d40d2901b9c8eb650cbd", "partition": "agent_dev", "positive_items": ["B00CPLODUU", "B00IFOTSJW", "B09RJZSQML"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m preparing for a small acoustic guitar set and need an easy way to tune accurately, shift keys without changing fingering, and keep a dependable supply of picks for strumming and practice."}
{"candidate_id": "dev-baa3df64dc3ec289749829c8", "partition": "agent_dev", "positive_items": ["B00EB12BJC", "B0002E1UDK", "B0BKR2ZM9X"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m upgrading my Strat-style electric guitar for better tuning stability and sustain, with a drop-in vintage tremolo replacement that needs no body modification, locking tuners, and a self-lubricating replacement nut."}
{"candidate_id": "dev-bacd39efbe8a220b5c1362bf", "partition": "agent_dev", "positive_items": ["B0783HJNQF", "B07JMJFPCS", "B09CQFND6N", "B0BCW884JL"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m assembling a rehearsal and gigging setup for my Les Paul-style electric guitar and Gretsch Streamliner, with reliable tuning and tempo practice, comfortable support during long sessions, and secure storage and transport for both instruments."}
{"candidate_id": "dev-bb0933de260f87ed0f524466", "partition": "agent_dev", "positive_items": ["B01DE4DEGK", "B01DARQZIK", "B0002E38UI"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable PA setup for small gigs and rehearsals, with a way to mount the mixer on a standard microphone stand, connect balanced audio equipment, and protect and roll the system between venues."}
{"candidate_id": "dev-bb10d8fbbec79171d3de9f5b", "partition": "agent_dev", "positive_items": ["B0151KT2B6", "B00N4ZHQ14", "B07DMS2QNL"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m starting a beginner ukulele practice project and need a warm-sounding soprano instrument, a padded way to carry it with room for music and essentials, plus an easy way to change keys while learning songs."}
{"candidate_id": "dev-bb14db0c9d77b4ff023bc5c8", "partition": "agent_dev", "positive_items": ["B00724FYDA", "B0BTC9YJ2W", "B07D444NSP"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring an older 12-string acoustic guitar and need the right replacement parts to restring it, refresh the bridge hardware, and fit new bushings for its post-style tuning machines."}
{"candidate_id": "dev-bb1acc0203ce6735785436d8", "partition": "agent_dev", "positive_items": ["B01MR8PKLQ", "B07TS9HJRS", "B06X9KG3HW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a small electric-guitar rehearsal setup and need reliable tuning, cables for connecting a microphone to the PA, and hands-free control for switching amplifier sounds while I play."}
{"candidate_id": "dev-bb3b57e347a7b18c16997afd", "partition": "agent_dev", "positive_items": ["B07MDT5WJX", "B000BBQPBG", "B07XP6MHQT", "B07MMJX9T7", "B018FCZKR2", "B0BHSG5C3G"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a home guitar practice and performance corner for several acoustic and electric instruments, with secure wall storage, a portable floor stand, accurate tuning, comfortable hands-free playing, easy strap changes, and dependable picks for regular sessions."}
{"candidate_id": "dev-bb5c739005a0ceaa38fd6455", "partition": "agent_dev", "positive_items": ["B003VE2JX8", "B004ZKIHVU", "B0B95V41NR"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a guitar pedalboard for rehearsals and need a secure way to mount the pedals, short low-noise connections between them, and leads to distribute 9V power from my supply."}
{"candidate_id": "dev-bb7023d7af5dc73a12e3f47b", "partition": "agent_dev", "positive_items": ["B000T06GKO", "B0BHT533DJ", "B002Q0WT92"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m getting my tuba ready for rehearsals and need a Helleberg-style mouthpiece, a protective pouch for safe storage, and slide grease to keep the slides smooth and airtight."}
{"candidate_id": "dev-bbe4daaddb2a7eb158176268", "partition": "agent_dev", "positive_items": ["B017NT392Q", "B07YM5ZHS9", "B08R5GM6YB", "B00IFOTSJW", "B000LQLDM2", "B07PSWC1XY", "B0C39H86Q1"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a home setup to restring, tune, and record an acoustic-guitar-and-vocal demo, with stable mic positioning, cleaner vocal plosives, vibration isolation, a long connection to my recording gear, and closed-back monitoring."}
{"candidate_id": "dev-bc03a467e48775bc958cab3f", "partition": "agent_dev", "positive_items": ["B000YID5OG", "B073CMGBZ2", "B095XCZXNQ", "B07T3GZVMD"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable setup for small acoustic performances and rehearsals, with a keyboard on a stable collapsible stand, comfortable seated guitar playing, and padded protection for carrying my acoustic guitar and accessories."}
{"candidate_id": "dev-bc18cd91c4c9bc53bc8c0336", "partition": "agent_dev", "positive_items": ["B098KXQJVY", "B088DD5M4V", "B015HG7F3Q"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my 7-string electric guitar ready for an amplified bluegrass jam and need durable replacement strings, accurate support for alternate tunings, and a dependable connection to my amp."}
{"candidate_id": "dev-bc4749c29c190d57fa9b3f7f", "partition": "agent_dev", "positive_items": ["B0748M39GN", "B00X8MTF8A", "B074HFDJVD"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a compact Traktor DJ station for live sets, with hands-on two-deck mixing, dedicated pads for triggering loops and samples, and a sturdy ventilated rolling rack to organize and transport the performance gear."}
{"candidate_id": "dev-bc4d184ac528799f2acaf24d", "partition": "agent_dev", "positive_items": ["B015WSQLMU", "B00RU0WMCC", "B073WND433"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable setup for a live band gig that needs wireless performer audio, close-miking for loud guitar and drums, and a rugged case to protect the microphones and mounting hardware during transport."}
{"candidate_id": "dev-bca0ee336ea7d295f9d2f2ab", "partition": "agent_dev", "positive_items": ["B00646MZHK", "B00DH6YW4E", "B009L9Z3OE"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up my ukulele for portable amplified practice and small gigs, and need an under-saddle pickup, reliable clip-on tuning, and a compact stand for safe breaks."}
{"candidate_id": "dev-bcb73f43edaf5a04a72f1de9", "partition": "agent_dev", "positive_items": ["B07QLGB4D8", "B0BR2V8V9B", "B07D1WM2G6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a neon-themed beginner band setup and need colorful electric-guitar strings, a way to make custom picks, and comfortable grippy sticks for drum practice."}
{"candidate_id": "dev-bcc8ea2c64fc6ade9b9b31c2", "partition": "agent_dev", "positive_items": ["B00AHKX9TM", "B099Z7ZKM1", "B0C5PRQ9K6", "B07CLMMPP9", "B09G5KDVWW"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing a small electric-guitar rehearsal and gig setup: I need to restring and comfortably secure my guitar, connect the amp to a compact PA speaker, protect it during transport, and reduce harsh room reflections."}
{"candidate_id": "dev-bcda54ea6e4f6f3df373ca61", "partition": "agent_dev", "positive_items": ["B008AWPI1Q", "B07N5J3GTB", "B091MZPYBQ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small outdoor singing performance and need a reliable handheld vocal microphone, a shielded connection to the sound system, and protection from wind and moisture during the show."}
{"candidate_id": "dev-bce9be58a60daad3c64759ea", "partition": "agent_dev", "positive_items": ["B01MDU5U60", "B08T2N1WZR", "B095JX9GZY"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a beginner music practice corner where I can learn recorder melodies alongside an 88-key keyboard, with adjustable instrument support and a portable stand for reading sheet music."}
{"candidate_id": "dev-bd162df75237fc655614b3c9", "partition": "agent_dev", "positive_items": ["B005SUXMEI", "B0BT2W3TTM", "B0BKR2ZM9X"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring my flat-top electric guitar and need replacement neck hardware, reliable locking tuning machines, and a discreet onboard tuner integrated near the humbucker."}
{"candidate_id": "dev-bd78598b38b05a16d983a975", "partition": "agent_dev", "positive_items": ["B0C4YN3MMY", "B01BJ96BZI", "B08DBDD6CM", "B09BF8XDF4"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing for a small live acoustic concert and need to refresh my guitar, run vocal and instrument microphones through a flexible powered mixing setup, connect everything reliably, and elevate and neatly secure the speakers for the audience."}
{"candidate_id": "dev-bd8d0b819b9c16be5e48ede5", "partition": "agent_dev", "positive_items": ["B00HV7U4CY", "B0CCK4YYNM", "B0BG95DG2H", "B09DF2S1D2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I'm preparing for a solo acoustic guitar performance and need replacement bridge and end pins, durable heavy picks, and hands-free foot percussion that can add controlled shaker and jingle accompaniment while I play and sing."}
{"candidate_id": "dev-bd9816eeae3e7dc8324b7668", "partition": "agent_dev", "positive_items": ["B008S8ACYA", "B0BCXKFMKD", "B07BQVJY7W"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing the appearance of my three-single-coil Stratocaster and need a coordinated replacement pickguard, mounting hardware, and matching external control and tremolo parts."}
{"candidate_id": "dev-bdd635d02c09f8be19677de0", "partition": "agent_dev", "positive_items": ["B0BPJ4Q6FJ", "B00S5WRW6U", "B07DGW4H5Q"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my electric guitar setup for bright doubled parts: I need high-strung strings, a compact overdrive for expressive crunch, and short connectors to link the pedals neatly on my board."}
{"candidate_id": "dev-be0a00f958438325ef073119", "partition": "agent_dev", "positive_items": ["B00O9N4ZFU", "B074WXM13T", "B0BKZ3GCGR"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a compact setup for learning and casually playing acoustic guitar at home or while traveling, with a small right-handed instrument, comfortable hands-free support, and a variety of picks for practicing different tones."}
{"candidate_id": "dev-be273043442381ae675dcc3d", "partition": "agent_dev", "positive_items": ["B00646MZHK", "B08BW2TBD7", "B01MRJUB7Z"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a portable guitar practice and rehearsal station where I can keep my acoustic or electric guitar secure, tune accurately, and quickly change keys without constant retuning."}
{"candidate_id": "dev-be430ad0212f98dde57585f7", "partition": "agent_dev", "positive_items": ["B0002D0C1C", "B07BKVG78D", "B07226MCY6"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m getting my baby acoustic guitar ready for regular playing and need a comfortable adjustable strap, fresh bright-sounding strings, and a protective hard case sized for a Baby Taylor or Martin LX."}
{"candidate_id": "dev-be775489cfe64d8c6f1b4a3d", "partition": "agent_dev", "positive_items": ["B0C6J1JZB2", "B0BT86JFNM", "B079TLFL33"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing my bass rig for regular rehearsals and gigs: I need a powerful low-end speaker setup, a way to keep my bass strap securely attached while playing, and durable fitted protection for transporting the amplifier."}
{"candidate_id": "dev-bea0d5e1865f809c70fdc20c", "partition": "agent_dev", "positive_items": ["B0098ULU1G", "B0BT2W3TTM", "B08HHGCCLR"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing a Fender-style electric guitar and need the hardware to secure the neck, restore its output connection, and finish the setup with a fresh set of medium-gauge strings."}
{"candidate_id": "dev-bee89f4dd8d35f4d5a319932", "partition": "agent_dev", "positive_items": ["B008H51464", "B0002GODI2", "B0009GYIL2"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a compact live-performance PA and need to isolate and balance an instrument or line signal into my mixer, make a short audio connection, and adapt speaker cabinets to existing stands."}
{"candidate_id": "dev-beeba6ff7bc0eb0a30296f89", "partition": "agent_dev", "positive_items": ["B000P5OULA", "B0BPJ4Q6FJ", "B07HP23S9V", "B081YJPLNS"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m restoring and outfitting guitars for a studio session: I need to repair and secure an acoustic guitar bridge, install a passive soundboard pickup without onboard electronics, protect the fretboard during fretwork, and string a six-string for a bright Nashville high-strung doubling part."}
{"candidate_id": "dev-bf00984fd9d1482270a1676f", "partition": "agent_dev", "positive_items": ["B01H47KKWE", "B07HP23S9V", "B06XZYD4NJ", "B07VMXTRQ7", "B01HUCYOXE", "B06Y2W66F5", "B07QZHPGXZ"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refurbishing my Telecaster and need supplies to inspect and set the neck, safely protect the fingerboard while crowning and smoothing fret ends, upgrade the output and tone controls, then check the finished guitar through a compact practice amp."}
{"candidate_id": "dev-bf3f265b30df05b98534c2d5", "partition": "agent_dev", "positive_items": ["B09S4R18BV", "B0158GWWJ2", "B0C9NGP88D"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m preparing for a guitar performance and need reliable ways to keep my steel-string guitar in tune, change keys quickly, and play fast, precise passages comfortably."}
{"candidate_id": "dev-bf7a7f1c2f4c7dc922d7367b", "partition": "agent_dev", "positive_items": ["B085GHYSM7", "B015XF3WBK", "B07FKKD86H"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a small home guitar recording rig and need warm tube-style drive, swirling modulation for varied tones, and a versatile multi-channel mixer to blend everything and record directly to my computer."}
{"candidate_id": "dev-bf89eb70f1bf7f390ef7e183", "partition": "agent_dev", "positive_items": ["B07T65XWM2", "B00IPG7UXG", "B07J2P1WST", "B07HR8FT4Z"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a setup for learning and playing heavy rock in lowered tunings, with a six-string electric guitar, sturdy comfortable support for standing, and an amplified rig with hands-free channel control and the necessary connection accessories."}
{"candidate_id": "dev-bf8f39fef40db78731f4ac25", "partition": "agent_dev", "positive_items": ["B0BVRWDFBD", "B0BT9R8MMV", "B07CYRYQ8G"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home music-production station to record several audio sources while playing expressive piano parts from an 88-key MIDI keyboard with hands-free sustain control."}
{"candidate_id": "dev-c00a0c9ab344eee99c1f37c2", "partition": "agent_dev", "positive_items": ["B01DE4DTAG", "B0BPJ4Q6FJ", "B07JCW1KGG", "B0BYXVCSGG", "B0BXT384GR"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a compact home recording rig for layered electric-guitar and vocal performances, with Nashville tuning for doubled guitar parts, tidy close-together pedals, a dependable guitar connection, and easy access to picks while I sing and play."}
{"candidate_id": "dev-c01e5b61609b7f00b25b53ed", "partition": "agent_dev", "positive_items": ["B0098DFNY8", "B0BSGM6CQ9", "B093YKLWVN"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m restoring my Les Paul-style electric guitar and need to clean and condition the fretboard, install heavier-gauge strings, and replace the worn control knobs for a complete setup."}
{"candidate_id": "dev-c0364b9ba1319dadea7c2035", "partition": "agent_dev", "positive_items": ["B01AIF4CL4", "B00X7YJUGG", "B07C91JT14", "B019LR2XTS"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting on a small live band show and need a complete setup for multiple singers, sturdy adjustable mic positioning, and reliable connections from microphones and instruments to the sound system."}
{"candidate_id": "dev-c0a64351d3ec7cfa7c43d296", "partition": "agent_dev", "positive_items": ["B0BKZ6M28F", "B09T8HDBYK", "B001PB3WOO", "B0002F7290"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a quiet home drum-practice area with low-volume coverage for my full kit, an additional 15-inch drum mute, a portable rug to keep everything anchored, and bass-head protection for double-pedal playing."}
{"candidate_id": "dev-c0b13615a99b6ce3873156a5", "partition": "agent_dev", "positive_items": ["B07TD9NX9F", "B09VT45772", "B018FCZKR2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a simple home acoustic recording corner for singing and guitar, with reliable vocal capture, safe instrument storage between takes, and quick microphone changes during sessions."}
{"candidate_id": "dev-c0ccc54b17b77c82e702d912", "partition": "agent_dev", "positive_items": ["B0C6Y3F5QX", "B01GITBUWS", "B08P3VZVWH"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a portable electric-guitar setup for rehearsals and small gigs: I need a secure carrying bag, a wearable playing strap, and an easy way to keep picks handy."}
{"candidate_id": "dev-c0d162ac837f0d6c1c9b7aa6", "partition": "agent_dev", "positive_items": ["B0C58M767M", "B078KTV8L4", "B00CPLODUU", "B0064BCRQE"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m getting my 6-string acoustic guitar ready for regular practice and small performances, with dependable humidity maintenance, a comfortable non-slip way to wear it, quick key changes, and plenty of versatile picks."}
{"candidate_id": "dev-c0d1958ed5697096c625a2be", "partition": "agent_dev", "positive_items": ["B015XDJB9E", "B086PLHS9L", "B0BT84L827"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a simple electric guitar rig for practicing and small gigs, with reliable tuning, a powerful versatile amp, and warm bluesy overdrive for expressive crunchy tones."}
{"candidate_id": "dev-c0e9df8a2dff26d3cf4d841c", "partition": "agent_dev", "positive_items": ["B003E757NG", "B08NVVLB16", "B017NT392Q", "B0002GZZNY"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a portable vocal recording and rehearsal station and need reliable vocal capture, signal warmth, hands-free microphone placement, and a folding stand for reading lyrics or sheet music."}
{"candidate_id": "dev-c0f796cdeae5849356ee8bbb", "partition": "agent_dev", "positive_items": ["B095XZJ99J", "B07BSHM52Q", "B086QP7WM2", "B06XGC49P9"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m upgrading my six-string Strat-style electric guitar with a high-output active preamp for passive pickups, rechargeable onboard power, chrome control knobs for solid-shaft pots, and a reliable medium-gauge string set for the finished setup."}
{"candidate_id": "dev-c108f81863a1bafb5758be48", "partition": "agent_dev", "positive_items": ["B074KRRZCH", "B0BLYY1ST4", "B07WHFKJZZ", "B01H7B1JD6", "B09VSJD5GP"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refurbishing my post-2000 Gibson Nashville electric guitar for regular playing and need to improve the nut and bridge setup, remove light finish scratches, clean it safely, and play comfortably with a supportive adjustable strap."}
{"candidate_id": "dev-c155c82de3db2daddd416857", "partition": "agent_dev", "positive_items": ["B09HCWTB11", "B0BKZ6JR1L", "B07F349RSZ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m rebuilding my drum kit for loud live gigs and recording, and need a bass drum front head with mic access and controlled decay, plus a durable, responsive coated snare setup with strong projection and sensitivity."}
{"candidate_id": "dev-c1569535aeb5130ddb7b038e", "partition": "agent_dev", "positive_items": ["B097Q9W8MW", "B08JMQR2JK", "B074WXM13T", "B0BKZ3GCGR"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a small guitar rehearsal and gig setup for my electric guitar, with secure storage and transport, hands-free playing, several padded floor stands for instruments, and a supply of comfortable picks."}
{"candidate_id": "dev-c159802ac95b88db71999f18", "partition": "agent_dev", "positive_items": ["B072MLFW5B", "B07N1RPV4J", "B00T3GJL8O", "B07B4ZZVDV", "B09G9DVTD3"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a home tenor sax performance recording, with reliable reed storage, a selection of jazz reeds, instrument cleaning, hands-free sheet music, and clear USB audio capture for streaming."}
{"candidate_id": "dev-c16ff561711c6112ea78fd5f", "partition": "agent_dev", "positive_items": ["B072PQT2DM", "B07H5HM6F6", "B00FQXOGWO"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a small home vocal-recording setup and need a clean way to connect the microphone, monitor takes with closed-back headphones, and quickly swap microphones between sessions without reconfiguring the stand."}
{"candidate_id": "dev-c1c2d0746bd27db219ebd8ed", "partition": "agent_dev", "positive_items": ["B085H22BGK", "B07C91W874", "B08XCC32NB", "B00J14G7OO", "B07CQR879L"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m organizing a small live acoustic band performance and need a digital mixing setup, hands-free wireless vocals, reliable personal in-ear monitoring for performers, and lightweight protective transport for the acoustic guitar."}
{"candidate_id": "dev-c1eac1cf87fd3598fed4caf5", "partition": "agent_dev", "positive_items": ["B07FL9G2J2", "B088DD5M4V", "B07D5W5X3Z", "B07PPHHG34", "B0B95V41NR"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my super-long-scale four-string bass for rehearsal: I need a fresh regular-light/medium-bottom string setup, a spare thin replacement string, reliable leads for amp and pedal connections, and a padded wall hanger to store it safely."}
{"candidate_id": "dev-c1f6e9ffec6e97027c1903d8", "partition": "agent_dev", "positive_items": ["B071RYWF1X", "B06XGVNTR6", "B0002E2G5Q"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m restoring an older Fender Precision bass and want to bring back its original vintage appearance with matching chrome hardware around the bridge and pickup, plus the correct black thumbrest for a period-appropriate setup."}
{"candidate_id": "dev-c1f913fe31cb829fd8397da6", "partition": "agent_dev", "positive_items": ["B07CQ9VV6F", "B07226MCY6", "B0B95V41NR", "B0C5PRQ9K6", "B071FGL3G3"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a compact home rehearsal space for guitar and drums and need safe wall storage, comfortable playing support, reliable instrument-to-amp and amp-to-speaker connections, plus sticks for practice."}
{"candidate_id": "dev-c2271b437c911bf8a018e9a0", "partition": "agent_dev", "positive_items": ["B00EW5I30I", "B002GHIPYI", "B0713XZR7B"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a songwriting and recording space where I can add rich 12-string accompaniment, monitor live instruments privately, and keep several guitars organized and safely stored between sessions."}
{"candidate_id": "dev-c252faeb2afa1e24bf0122c9", "partition": "agent_dev", "positive_items": ["B005JTV358", "B005OZE9SA", "B07SRDVZSL"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home recording and mixing station where I can connect microphones or instruments, monitor tracks accurately through headphones, and position studio monitors at the proper listening height."}
{"candidate_id": "dev-c258226dd1bbe0010f916749", "partition": "agent_dev", "positive_items": ["B01NBIW57O", "B000AXQHH2", "B079TLFL33"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up my bass for clean, reliable studio sessions and need an expressive replacement string set, a way to control sympathetic noise during playing, and hardware to keep the strap securely attached."}
{"candidate_id": "dev-c2616dd95ad816f074a628ac", "partition": "agent_dev", "positive_items": ["B0C5BMZ1K9", "B005OZE9SA", "B007DJ4NN6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home podcasting station and need to record clear spoken vocals through an XLR microphone, reduce room reflections, position the mic at my desk, and monitor recordings accurately with headphones."}
{"candidate_id": "dev-c29b1e3f715ac825b6af5d74", "partition": "agent_dev", "positive_items": ["B01BZTGPW6", "B00646MZHK", "B0009FJ1NS"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up my bass for rehearsals and small gigs, and need dependable replacement strings, accurate clip-on tuning, and a floor unit for shaping my tone with multiple effects."}
{"candidate_id": "dev-c2d1cee3c34343940a87f90b", "partition": "agent_dev", "positive_items": ["B00VDPYD90", "B005DGIVCU", "B0002E1IW8", "B00T3G1164", "B0B6P55RBN"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing for a portable rehearsal switching between alto sax and trumpet, and need reliable playing setups for both instruments, fresh sax reeds, a safe place to rest the trumpet, and an adjustable stand for my sheet music."}
{"candidate_id": "dev-c2e42d5ea3f89d38d44c0589", "partition": "agent_dev", "positive_items": ["B0BKZ61YJJ", "B09TXNWYMD", "B07SRDVZSL"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home drumming practice routine to develop powerful, realistic technique on a tabletop while monitoring practice tracks and evaluating my timing accurately through studio headphones."}
{"candidate_id": "dev-c316ae578114cfd75f4db1e7", "partition": "agent_dev", "positive_items": ["B086QN5FH7", "B081Q27NF8", "B07L92CFHW", "B0BKZ3GCGR"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring an older acoustic guitar and need replacement tuning hardware and bridge fittings, plus comfortable picks and a secure phone mount for following lessons, lyrics, and chord charts while I practice."}
{"candidate_id": "dev-c327f732c18cb2b9dc16acd8", "partition": "agent_dev", "positive_items": ["B0714MQXCP", "B01C66FYX8", "B0B4SHB5T3", "B07BZWZQDD", "B00ZGI5JN4", "B07HM8Q5FR", "B007IE5TQG"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact amplified harmonica setup for blues and folk jam rehearsals, with a broad selection of keys, a protective zippered pouch for transport and cleaning, and a clamp-on shelf to keep the harps and small accessories within reach."}
{"candidate_id": "dev-c33a09814233d2ad5d0cd020", "partition": "agent_dev", "positive_items": ["B01LMDLNAY", "B0BR2VNH4X", "B08BHY6WWG", "B009DAHPLU", "B0BHG58G2F"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing my bass-guitar setup: restoring an American Vintage Jazz or Precision bass with the correct vintage bridge, refreshing its hardware and fret markers, and restringing a compatible five-string bass with a bright nickel-wound set."}
{"candidate_id": "dev-c387eb8f1b81de9873e39c52", "partition": "agent_dev", "positive_items": ["B0919825Z2", "B073VRMPDY", "B00ABMCHOO"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m upgrading my electric guitar and pedalboard for reliable live playing, with hardware for stable string changes, fast accurate tuning, and cleaner signal control without losing my tone."}
{"candidate_id": "dev-c38b3696b88567ca12711a89", "partition": "agent_dev", "positive_items": ["B06Y2W66F5", "B094F39HLL", "B008VU6VXG"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m upgrading my guitar for low-tuned extreme-metal playing and home practice, so I need a high-output bridge humbucker, compatible Floyd Rose tremolo mounting hardware, and a compact amp for shaping aggressive tones."}
{"candidate_id": "dev-c3bac0ac5c67cc0e520e284d", "partition": "agent_dev", "positive_items": ["B086QMZG22", "B00RVE9X06", "B0919G5ZTY", "B08NVVLB16"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a small rock performance setup and need gritty guitar drive, spacious reverb, a durable vocal microphone, and a long instrument lead for connecting my guitar onstage."}
{"candidate_id": "dev-c3c38a2b6d7fd7cf679ba8b1", "partition": "agent_dev", "positive_items": ["B09Y1X5BSC", "B09RN7GR8F", "B07ZW1GBVT"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home recording station for producing guitar demos, with a way to shape the guitar signal before recording, connect multiple sources, and accurately hear and mix the finished tracks."}
{"candidate_id": "dev-c3d76ebba38ad61ab1bb87b9", "partition": "agent_dev", "positive_items": ["B07Y2R3Z2D", "B07NYYTKRS", "B0BPLFP5P6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting a ukulele back up and running and need replacement friction tuning pegs, a clip-on tuner for setup, and durable flat picks to play-test the repaired instrument."}
{"candidate_id": "dev-c3e57fb3ee3f8b742c0d56d0", "partition": "agent_dev", "positive_items": ["B07R3S93K8", "B000EEHHBW", "B00IPHSRN2", "B001EKECC2"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a home guitar practice and recording station for several electric guitars, with secure wall storage, a dependable way to keep my strap attached, convenient picks within reach, and a USB interface for recording polished guitar tones."}
{"candidate_id": "dev-c429d3da4c23c51b32fe8a08", "partition": "agent_dev", "positive_items": ["B09RJZSQML", "B09V91H5XM", "B00WQI2TM6", "B08LM7RL4X"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a guitar-and-harmonica setup for practicing and casual performances, with an easy tuner for keeping the guitar in pitch, a comfortable adjustable strap, durable light picks for strumming, and a keyed harmonica for blues, folk, or rock parts."}
{"candidate_id": "dev-c452098bab590c59b837f83f", "partition": "agent_dev", "positive_items": ["B07GSJNMBQ", "B017NT392Q", "B077Z9HF27"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I want to set up a compact home recording rig for vocals or acoustic instruments, with stable hands-free microphone placement, 48V power for a condenser mic, and USB connectivity for recording."}
{"candidate_id": "dev-c47abd434f3a3319a1f2481f", "partition": "agent_dev", "positive_items": ["B0B2F781MF", "B0002F55HG", "B0B949FD92"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a portable trumpet practice and rehearsal kit and need a comfortable, versatile mouthpiece, a folding stand for my music, and a compact secure holder for resting the trumpet between playing."}
{"candidate_id": "dev-c4a39e36050ed3b666518a62", "partition": "agent_dev", "positive_items": ["B08MWSS6SL", "1458415287", "B0B6P55RBN"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m starting a portable ukulele worship music setup and need an instrument with reliable tuning and travel protection, plus a songbook and adjustable stand to hold the music while I practice or lead songs sitting or standing."}
{"candidate_id": "dev-c4be5135706c01f399552a05", "partition": "agent_dev", "positive_items": ["B01K1EJQ9U", "B08BJGBHN7", "B0BT862N4P"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a beginner-friendly electric guitar practice station where I can experiment with different pick gauges, keep standard picks within reach, play along with music, and practice quietly through headphones."}
{"candidate_id": "dev-c56bbb0ee5fe47954982985e", "partition": "agent_dev", "positive_items": ["B07Z46ZM78", "B08138J6KK", "B00JL5I61A", "B0BHG58G2F"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a home recording setup for a small band, including connecting a MIDI keyboard, restringing the electric guitar and five-string bass, and having durable picks ready for tracking bright, energetic parts."}
{"candidate_id": "dev-c585dbbde88bd92723d15fb2", "partition": "agent_dev", "positive_items": ["B08R5GM6YB", "B07PPHHG34", "B0BSCFTV2G"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home guitar practice and display area and need a way to hold notes at different frets, change strings efficiently, and safely hang the instrument on the wall without damaging its finish."}
{"candidate_id": "dev-c58aa78fd01933a7ad64b54a", "partition": "agent_dev", "positive_items": ["B06X9KG3HW", "B07CYRYQ8G", "B09VT45772"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home recording session for vocals and instruments, and need multichannel input, a sensitive studio microphone, and balanced connections to capture clean takes."}
{"candidate_id": "dev-c5a7494979db2b151c3f19e1", "partition": "agent_dev", "positive_items": ["B00IKVCXWO", "B007V5J6SE", "B07NTHVQ9Q"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live music performance and need a way to route several stage microphones to the mixer, connect the PA speakers over a long distance, and safely carry the microphones, cables, and clips between gigs."}
{"candidate_id": "dev-c5b70e022647c905d9076dac", "partition": "agent_dev", "positive_items": ["B07GB5NDFZ", "B0B29LK8QD", "B0BG21LHPJ", "B0179A4ILK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my guitar and pedalboard for live playing, with a decorative inlay-style finish, more reliable string guidance, a strap that stays secure, and easier-to-hit pedal switches without changing my sound."}
{"candidate_id": "dev-c6166f2cf6cb51d73fa508cc", "partition": "agent_dev", "positive_items": ["B07TNNP49T", "B08M42WR5D", "B0C3LKJXFR"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m doing a careful acoustic-guitar restring and setup, with safe bridge-pin removal, quicker tuning-peg winding, and precise nut-height checking."}
{"candidate_id": "dev-c62587cab082d5fb89b12644", "partition": "agent_dev", "positive_items": ["B096FZ5TKG", "B01DE4DEGK", "B004HNXZ6M", "B01DN7O97G"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a small live-sound rig and need balanced XLR connections for microphones, short balanced TRS links between rack components, and a configurable speaker processor to route and manage several outputs for different speaker zones."}
{"candidate_id": "dev-c63691d5160c41e1cc4d70e7", "partition": "agent_dev", "positive_items": ["B0002D0CAI", "B0BT8GVK6M", "B01DPCONFM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my acoustic-electric guitar for a small coffeehouse performance and need to restring it, connect reliably to amplification, and project both guitar and vocals clearly."}
{"candidate_id": "dev-c68180f4e72afe3ec4888cf7", "partition": "agent_dev", "positive_items": ["B0075DO5K6", "B01BZBAGFG", "B091YFQGCJ", "B07FHDSPND"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a compact guitar practice and gig area where I can safely store several guitars, angle my amp for better monitoring, keep cables and headphones organized on my existing gear cart, and upgrade my strap hardware."}
{"candidate_id": "dev-c68dac009834bb1f20049088", "partition": "agent_dev", "positive_items": ["B07VRZ3N55", "B07VWSB34H", "B01MQTT3EH", "B00BESRB8Q", "B07MDT5WJX"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my 3/4-size acoustic ready for a small gig and need a travel-ready setup, hands-free playing support, an adjustable capo, and tools for fretboard smoothing and basic hardware adjustments."}
{"candidate_id": "dev-c6d2b063645673e6db853257", "partition": "agent_dev", "positive_items": ["B0B4WL9T1Y", "B091YFQGCJ", "B0BT2Z1DF1"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m upgrading my electric guitar for reliable tuning and a fresh, versatile sound, while organizing my home practice space to store several guitars safely and keep them accessible."}
{"candidate_id": "dev-c6d8f9517d25de380b8b411a", "partition": "agent_dev", "positive_items": ["B01MDR3USN", "B0064S4YFO", "B0002ZO3JW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact drum recording setup and need durable sticks for playing, plus hardware that lets me securely mount and precisely position a microphone around the drum without taking up much space."}
{"candidate_id": "dev-c6de4c635efac369c6fd9782", "partition": "agent_dev", "positive_items": ["B0002F6K4I", "B004XLATPI", "B0002H05CE", "B0002F71P0"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m upgrading my acoustic drum kit for a more expressive setup, with secure bass-drum footing, two contrasting splash accents, and a way to tame unwanted resonance during rehearsals and gigs."}
{"candidate_id": "dev-c74556ea88cc074fc4dd7d38", "partition": "agent_dev", "positive_items": ["B07HKFX3JX", "B09PBL98Q4", "B0B8M2Q1DS"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact electric guitar setup for rehearsals and small gigs, with comfortable adjustable support, space-saving connections between pedals, and versatile vintage-style fuzz tones for classic rock and blues."}
{"candidate_id": "dev-c759ecc99dfd36e4ec6a3b5e", "partition": "agent_dev", "positive_items": ["B0889FL1MT", "B08BJGBHN7", "B01DE4DPSC"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable electric guitar setup for practicing and playing outdoors, so I need an amp that works without mains power, a suitable connection from the guitar, and assorted picks to try different playing feels."}
{"candidate_id": "dev-c78b0097dd467e53cea11748", "partition": "agent_dev", "positive_items": ["B0196J6XG0", "B09NWCD36N", "B001W99HE8", "B07226MCY6"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a simple electric-guitar setup for recording demos at home and need versatile playing accessories, short leads to link my pedals, a comfortable adjustable strap, and a mic for capturing the amp."}
{"candidate_id": "dev-c7c6519e4159334154836c7d", "partition": "agent_dev", "positive_items": ["B0BTC9YJ2W", "B01M7RFRIR", "B018FCZKR2"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a compact home songwriting station: restring my 12-string acoustic for warm, balanced sound, keep the guitar safely upright between sessions, and place my keyboard at a comfortable adjustable playing height."}
{"candidate_id": "dev-c817b7f3cd7333ea7ec2553c", "partition": "agent_dev", "positive_items": ["B0BMDYZ11S", "B08CSQNMN5", "B09ZTJH58K"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable setup for small live shows, needing remote-controlled audio mixing and recording, proper termination for a DMX lighting chain, and a padded compact rack bag to transport the rack gear safely."}
{"candidate_id": "dev-c81f5ce26a1e5638c285cc53", "partition": "agent_dev", "positive_items": ["B0BYXQHW7Y", "B075MP9NM6", "B0C6H9T5T6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home podcast and livestream station and need a USB microphone with flexible desk positioning and vibration isolation for clean, professional-sounding recordings."}
{"candidate_id": "dev-c84490427a5d154c402f4c20", "partition": "agent_dev", "positive_items": ["B0B95V41NR", "B0C621L9FB", "B077GK1J7N", "B091MZPYBQ", "B07VWSB34H", "B07KGF3MHC"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m building a portable setup for recording guitar and vocals while traveling, with expressive tone shaping, reliable instrument connections, cleaner microphone pickup, and padded protection for a compact guitar."}
{"candidate_id": "dev-c861352c09b54def2cc488b3", "partition": "agent_dev", "positive_items": ["B0B52FBC66", "B00M9CUJ6W", "B0BR2KL6QL"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a simple home vocal recording setup and need a sensitive microphone, secure adjustable support, and balanced cables to connect everything to my audio gear."}
{"candidate_id": "dev-c8751819f38de066e74b0098", "partition": "agent_dev", "positive_items": ["B0CB98SMQR", "B0B69VXJ6G", "B0731JGPBT", "B00BVH7C66"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my jumbo acoustic setup for a recording and small gig: I need to restring it, safely transport both the guitar and compact amp, and mic the amp for a clear, reliable sound."}
{"candidate_id": "dev-c88257dc606d84085061cde8", "partition": "agent_dev", "positive_items": ["B09MMT45P1", "B01GMLOKD8", "B0BXLY8HJG"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home drumming and recording station with a responsive electronic kit, an adjustable stand for my laptop or mixer, and convenient within-reach storage for sticks, mallets, and brushes."}
{"candidate_id": "dev-c8a26d7eaf71b92390e00db1", "partition": "agent_dev", "positive_items": ["B09F9B8DV9", "B09RBFKS1X", "B0002GO8NM"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refreshing my compact drum kit for recording and need an 8-inch tom head, precise tension tuning, and a way to control unwanted overtones for a clean, balanced sound."}
{"candidate_id": "dev-c8b291cb56ae2fc8717bd81b", "partition": "agent_dev", "positive_items": ["B00SO5Z3DM", "B001MX3WWC", "B0BKZ1KXLM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my compact drum kit for live rehearsals and need sturdy adjustable cymbal support, a durable focused 13-inch drumhead, and compact splash-and-china effects that can mount together without another stand."}
{"candidate_id": "dev-c8ee9d2442685eac25196579", "partition": "agent_dev", "positive_items": ["B07JKRBNWY", "B08KL656J7", "B07PW9KBBJ", "B01MRJUB7Z"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m building a versatile guitar rig for recording and live looping, with reliable pedalboard tuning, an adjustable capo for different acoustic or electric songs, expressive dual overdrive, and cavernous ambient reverb for atmospheric sections."}
{"candidate_id": "dev-c9146db9b793c1df8f3c1402", "partition": "agent_dev", "positive_items": ["B001LNO9KM", "B0BKZ5DJZ2", "B06XWNB5G7"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a portable drum setup for rehearsals and small gigs, with sturdy protection for a tom or snare, organized storage for sticks and accessories, and dependable nylon-tip sticks for playing."}
{"candidate_id": "dev-c9192e017bffe6d236b17f15", "partition": "agent_dev", "positive_items": ["B01N9VNZPO", "B073RPD4YQ", "B01MAY79A4"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m upgrading my electric guitar for classic doom-rock playing and need a warm neck pickup, expressive wah sounds, and a raw, powerful boost overdrive setup."}
{"candidate_id": "dev-c9194c7736c4b98d3b7de5ee", "partition": "agent_dev", "positive_items": ["B071H9C1B9", "B002G1UT5C", "B06XHXVMQ1"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m starting a beginner folk-music practice setup and need a 21-chord autoharp, comfortable finger picks for playing, and a protective gig bag to carry everything to lessons and gatherings."}
{"candidate_id": "dev-c996254bc7dce611ef6f4b4d", "partition": "agent_dev", "positive_items": ["B081TYHXMH", "B00EM5UOE6", "B06XWMLT5W"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home rehearsal space for guitar and drums, and need reliable guitar amplification plus a responsive bass-drum pedal and comfortable adjustable seating for longer practice sessions."}
{"candidate_id": "dev-c9af3666fc5250e633191f87", "partition": "agent_dev", "positive_items": ["B00O3OMGBU", "B09G7GH2FH", "B07C97VX25"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable guitar performance rig for small gigs and rehearsals, with protected rack space for my equipment, a reliable wireless instrument connection, and compact bright lighting for reading charts onstage."}
{"candidate_id": "dev-c9bf1b434bd33b188a3ca972", "partition": "agent_dev", "positive_items": ["B00M9BSZMI", "B01BGSJIY8", "B093YKLWVN", "B09YDBKT7M", "B0BSGM6CQ9", "B09BF8XDF4", "B0BK5CXZBT"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m getting my electric and acoustic guitars ready for a performance and need to restring both, connect the electric to an amp, add capo flexibility to the acoustic, and clean and condition the strings, fretboards, and finishes."}
{"candidate_id": "dev-c9c89b55ba7cee4657668e11", "partition": "agent_dev", "positive_items": ["B0060ABNT6", "B00N6Y3SA6", "B01M5D3MV6", "B07BQRDVYJ"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m getting my Bb clarinet ready for regular lessons and home practice, and need a portable way to protect it, set up the playing end, keep steady tempo, and maintain the corks."}
{"candidate_id": "dev-c9e6b05c93629342ee2a6699", "partition": "agent_dev", "positive_items": ["B00423O25U", "B00HCNQGQK", "B07BSZNKTM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up and refreshing my classical guitar for regular practice, including new strings, quick key changes, and a secure wall display when I’m not playing."}
{"candidate_id": "dev-ca066b76ce4f6f408248e9e9", "partition": "agent_dev", "positive_items": ["B0C3LHRGB2", "B0002GY9Y0", "B0B95V41NR"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact experimental guitar rig for thick octave-down fuzz tones, quieter high-gain playing, and reliable short connections between my pedals."}
{"candidate_id": "dev-ca13395d02363caf96b207f3", "partition": "agent_dev", "positive_items": ["B09S2VB3KW", "B0B8YWPB3K", "B0928HW2P4"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m giving my guitar a full refresh: clean and condition the fretboard, replace the strings efficiently, and have comfortable, non-slip picks ready to test the setup afterward."}
{"candidate_id": "dev-ca1e4a8fd379ed102ecb4b1b", "partition": "agent_dev", "positive_items": ["B01N6U2EJ1", "B0BT2Q355P", "B08MVLQZBT"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m upgrading my Bigsby-equipped guitar and need a low-friction bridge that matches its 12-inch radius, plus finish-safe tools for adjustments and a precise way to fit and fine-tune the nut or saddle for accurate string action."}
{"candidate_id": "dev-ca335fc95687b9f1d8d14f14", "partition": "agent_dev", "positive_items": ["B079C49WL6", "B074TRXB21", "B074VVK9RW"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a compact solo singer-songwriter setup for live café gigs, with built-in rhythm backing, vocal and acoustic-guitar effects at the mic stand, and a reliable long cable to connect the performance rig to a speaker."}
{"candidate_id": "dev-ca4095dc7ffc5365f7abf24c", "partition": "agent_dev", "positive_items": ["B06ZYSHZX8", "B086DGS9S8", "B0922FJFD5", "B09N6MR9ZJ", "B0871KN59J"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing a mixed Les Paul- and Strat-style electric guitar and need compatible parts for reliable tuning, refreshed control hardware, a replacement output connection, and assorted mounting screws to secure everything during the rebuild."}
{"candidate_id": "dev-ca4b6dfaa8792c3356605aef", "partition": "agent_dev", "positive_items": ["B07281RLMX", "B07NF12RQV", "B0002F7AEW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my drum kit for focused home practice and need a punchy, controlled bass response, clear tom sounds, and a durable cymbal option that can handle frequent playing."}
{"candidate_id": "dev-ca51d91aa2e8bf7242225261", "partition": "agent_dev", "positive_items": ["B0BKZ2BPGS", "B0B9G89JBC", "B09C8W3478"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my fusion drum kit with new 10, 12, and 14-inch tom heads, better-protected hi-hat cymbal mounting, and adjustable chain-based cymbal hiss effects for jazz and varied drumming styles."}
{"candidate_id": "dev-ca564d31ac809db06de3d3e4", "partition": "agent_dev", "positive_items": ["B00IFOTSJW", "B01H0PACWI", "B0BSGM6CQ9", "B09Y5QH9LB"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing a compact electric-guitar practice setup: I need heavier replacement strings, a reliable clip-on tuner, a way to send laptop stereo audio to two quarter-inch inputs, and hardware to angle the speaker for better monitoring."}
{"candidate_id": "dev-ca6cba3968277da44012a588", "partition": "agent_dev", "positive_items": ["B00T4Z77D0", "B09282LNM7", "B091MZPYBQ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small vocal recording and need reliable pitch reference, adjustable microphone support, and protection from breath and wind noise."}
{"candidate_id": "dev-ca6cc16db280b4d6a757bec3", "partition": "agent_dev", "positive_items": ["B0B86YBMQ7", "B07RMZWC8F", "B079412CF2", "B01MSJW92G", "B07XH591BH"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact live electronic music rig with a DIY synth, tube-driven bass, and distinctive digital drums. I need a mixer for combining several instruments, plus the right MIDI-to-3.5mm connection for syncing and controlling the setup."}
{"candidate_id": "dev-ca7614d409a0f80af99fdc2b", "partition": "agent_dev", "positive_items": ["B07SK7XZSF", "B07DB29J28", "B0BSCBGPCL", "B07H9C3D1L", "B01LKYTQOK", "B01MR0BOJJ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable ukulele setup for rehearsals and small performances, with replacement strings and chord guidance, secure shoulder support, protective concert-size transport, and a wired microphone setup for singing and amplified playing."}
{"candidate_id": "dev-ca7a4d0b0c45cd1c1fe67549", "partition": "agent_dev", "positive_items": ["B07PSWC1XY", "B00167UQLO", "B017NT392Q"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home studio to record clear vocals and acoustic guitar, and need a sensitive condenser microphone, plosive protection, and a stable adjustable boom setup for precise positioning."}
{"candidate_id": "dev-ca85c6b0af286f04dd9f6eda", "partition": "agent_dev", "positive_items": ["B07D4QCBX4", "B07MVCN9XT", "B074WXM13T", "B00646MZHK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m starting electric guitar lessons and need a beginner-friendly instrument setup with comfortable hands-free support, reliable clip-on tuning, and the essential tools and supplies for routine adjustments, cleaning, and string changes."}
{"candidate_id": "dev-ca86338fc9b8683706ea3c01", "partition": "agent_dev", "positive_items": ["B0002F7AFG", "B01KMYYJ3M", "B0BZPVNFDL"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a durable drum practice kit and need bend-resistant practice cymbals, a standard tool for adjusting square-lug tension rods, and replacement padding and mounting pieces to protect and secure the cymbals."}
{"candidate_id": "dev-ca9edf44be1028f3d9cec88a", "partition": "agent_dev", "positive_items": ["B08CMVB6R5", "B005GC7XUC", "B00EIDKQEA"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m filming an outdoor interview documentary and need clean directional audio for my camera, flexible onboard recording, strong wind protection, and a way to secure the microphone hands-free on a stand for stationary shots."}
{"candidate_id": "dev-cad368bd1520810dd382b77f", "partition": "agent_dev", "positive_items": ["B07C91JT14", "B07281RLMX", "B06X9KG3HW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live band performance and need to refresh the toms, mic several singers or instruments, and connect everything reliably to a PA system."}
{"candidate_id": "dev-cb1ce2f7613a1f628392d852", "partition": "agent_dev", "positive_items": ["B07T9SZ8W5", "B094RD529N", "B01MZ7H6CW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for a portable ukulele performance and need hands-free support, reliable picks for varied strumming, and an adjustable stand to keep my music readable while playing."}
{"candidate_id": "dev-cb3e9684824fee2177797265", "partition": "agent_dev", "positive_items": ["B09G7GH2FH", "B073C7Z1PQ", "B001AWWN4S"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing for a small acoustic folk performance and need a compact instrument setup for ukulele and tenor banjo practice, including replacement strings and a bright clip-on light for reading music onstage."}
{"candidate_id": "dev-cb3f0348008c908a28161398", "partition": "agent_dev", "positive_items": ["B073WVRFCY", "B017WB4RI0", "B017XJY2OK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m assembling a compact guitar pedalboard and need reliable short, low-profile right-angle cables for connecting effects pedals and running the board to my instrument."}
{"candidate_id": "dev-cb76b6d1127c53fa99729ab7", "partition": "agent_dev", "positive_items": ["B07QQLLXBG", "B001EKECAY", "B07KYX3S8X"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m recording guitar demos at home and want more reliable tuning, flexible driven tones, and a straightforward USB setup for capturing the performance."}
{"candidate_id": "dev-cb9d36cb482a0dd38d4b092a", "partition": "agent_dev", "positive_items": ["B00JUA0HK4", "B079Z72D57", "B0BSCF2FD7"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a comfortable home keyboard practice and teaching station with an adjustable seat, sturdy support for my keyboard, and a raised monitor with microphone holders for lessons and performances."}
{"candidate_id": "dev-cba5778014005353f6a4eacb", "partition": "agent_dev", "positive_items": ["B01A9GR15Q", "B09BCVF2MW", "B0916MP75Y", "B06X9KG3HW", "B07CQ919R3", "B07DWY7R2X", "B091MZPYBQ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small guitar-and-vocal livestream with a desktop microphone, PA connection, clean signal splitting, and reliable mic cabling, while restringing my electric guitar and keeping a replacement string on hand."}
{"candidate_id": "dev-cbdf9ff84090bd7887bff3ab", "partition": "agent_dev", "positive_items": ["B002S54DF8", "B000W348OO", "B06Y6BCX7B", "B0BKZ67C9F", "B091MZPYBQ", "B07N5J3GTB"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a small youth vocal-and-percussion performance and need clear vocal projection, tunable pitched drums, lighter sticks for smaller hands, flexible microphone positioning, and protection from wind and moisture."}
{"candidate_id": "dev-cbfcb042d44ee951c4c54ecb", "partition": "agent_dev", "positive_items": ["B0764F75C8", "B0764G5LLF", "B004ZKIHVU"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a home guitar recording rig and need to secure my effects pedals while routing quiet balanced connections between the pedalboard, microphone equipment, and studio audio gear."}
{"candidate_id": "dev-cc311461b07c7b394fa69699", "partition": "agent_dev", "positive_items": ["B072LXH1V4", "B07DWM2XSS", "B0B59DLBMD", "B088RHNMQ3"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing my electric guitar for an ambient, texture-heavy playing project and need fresh strings, reliable picks with a compact way to keep them handy, plus hands-free delay and reverb effects."}
{"candidate_id": "dev-cc3d32bf3d49f587b1fdd411", "partition": "agent_dev", "positive_items": ["B0928FM4T3", "B095XZJ99J", "B08VF4K987"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restringing and giving my six-string electric guitar a full refresh: I need durable medium-gauge strings, body-and-fretboard care, and a precise tuner for setup and stable playing."}
{"candidate_id": "dev-cc71df6c3a791c22525417f0", "partition": "agent_dev", "positive_items": ["B09VSJD5GP", "B00ABLE59K", "B07DWY7R2X"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m refreshing my six-in-line electric guitar for regular rehearsals and gigs, and need a reliable tuning upgrade, comfortable shoulder support for long sessions, and durable light-gauge strings that keep their tone."}
{"candidate_id": "dev-cc7f6c5422423ff5d6417317", "partition": "agent_dev", "positive_items": ["B009DAHPLU", "B00C5B272Q", "B07CNHZ8KW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m upgrading my electric guitar for a heavier, more powerful sound and need a matched neck-and-bridge pickup setup, a durable panel-mounted output connection, and coordinated black control hardware."}
{"candidate_id": "dev-cc8b65a131b57466a5cb3515", "partition": "agent_dev", "positive_items": ["B0BPJ4Q6FJ", "B0B3NJ1TDB", "B01DE4DPSC", "B09NWCD36N"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing an electric guitar part for a home recording session and need to restring it for a bright Nashville-style layer, play comfortably with varied picks, connect to an amp, and run a microphone to the recording setup."}
{"candidate_id": "dev-cc9e3853e0ac988542692d25", "partition": "agent_dev", "positive_items": ["B0BKZ3GCGR", "B08R5GM6YB", "B01K1EJQ9U"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m restringing and refreshing my guitar setup, and I need an all-in-one tool for winding, cutting, and removing bridge pins, plus a convenient way to keep standard picks within reach while I play."}
{"candidate_id": "dev-cca0271b37e78443278f8df8", "partition": "agent_dev", "positive_items": ["B0BCXRJCL2", "B0BSGM6CQ9", "B0BCXW7DPV"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my electric guitar ready for rehearsals and need a fresh heavier-gauge setup, a reliable connection to my amp, and comfortable support while standing."}
{"candidate_id": "dev-cca0c9ca337e10bdfbdfc69e", "partition": "agent_dev", "positive_items": ["B0BKZ3GCGR", "B00H4PEMM6", "B08R5GM6YB", "B0BTC9YJ2W"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my 12-string acoustic for a small gig and need warm extra-light strings, a handy tool for removing and winding them, plus reliable accessories for changing keys and strumming comfortably."}
{"candidate_id": "dev-cca399e698d1346a6aff1d9e", "partition": "agent_dev", "positive_items": ["B015JTEBN8", "B091MZPYBQ", "B08DBDD6CM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live vocal performance and need a portable way to position the microphone, reduce wind and breath noise, and connect it reliably to my mixer."}
{"candidate_id": "dev-ccccdc26f3b577c2311f7002", "partition": "agent_dev", "positive_items": ["B09M5MXGBV", "B0042SR4IW", "B0BRQ9TQSV", "B00B1ZONFG", "B09RHNXJMW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a small world-music ensemble and need to refresh a four-string bass, stock reliable picks, and add varied hand percussion for warm rattles, gentle rain effects, and adjustable shaker textures."}
{"candidate_id": "dev-cd06688bca31ede51ed9f23b", "partition": "agent_dev", "positive_items": ["B00TWHTPWG", "B002BAZNHW", "B08XNQXD4P", "B0BT3HM147", "B002Q0WU3W", "B00TWHTFSU"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact brass practice and care setup for trumpet and trombone, with secure stands and mouthpiece storage, supplies for cleaning and smooth slide movement, plus mutes for quiet trombone practice and controlled, lower-register trumpet work."}
{"candidate_id": "dev-cd320efde13ac39be3bdf44a", "partition": "agent_dev", "positive_items": ["B07M6B3RDW", "B09PJ3N73Y", "B01DP0H4N2"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m preparing my Tele-style electric guitar for small live gigs and rehearsals, so I need reliable clip-on tuning, an XLR cable for the vocal setup, and a sturdy fitted case for transport."}
{"candidate_id": "dev-cd5df71c4da2441a5da48edd", "partition": "agent_dev", "positive_items": ["B09G5QS1VD", "B074WXM13T", "B01DPCONFM", "B08R5GM6YB", "B00PMS37FA"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my electric guitar ready for home practice and want everything needed to restring it, play comfortably while standing, connect it to a small practice amp, and switch between clean tones and overdrive without buying items separately."}
{"candidate_id": "dev-cdb6766e9aa91e1409b544a1", "partition": "agent_dev", "positive_items": ["B07V22M8F4", "B073CZTQFM", "B000K69UM8", "B00NO53460"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m restoring my RG-style electric guitar and need a matching replacement pickguard, a neck humbucker upgrade, hands-free control for my effects setup, and durable picks for regular playing."}
{"candidate_id": "dev-cdb9f15af88fe47196805439", "partition": "agent_dev", "positive_items": ["B00RVE9X06", "B00GI2L1RK", "B01BZTGSC8"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact guitar-and-vocal setup for rehearsals and small live performances, with flexible effects and expression control, a long instrument connection, and a reliable vocal microphone setup on a stand."}
{"candidate_id": "dev-cde671142f7bbe82389021b7", "partition": "agent_dev", "positive_items": ["B07685T8FT", "B00WJ3KH0Y", "B0BT2WKZ42"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a low-volume home practice station for working on rock grooves, with quiet mesh surfaces and responsive sticks suitable for regular drumming technique."}
{"candidate_id": "dev-cdec5ff954c459e3f381b3bd", "partition": "agent_dev", "positive_items": ["B09BF8XDF4", "B0BKZ3GCGR", "B08R5GM6YB"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refreshing my acoustic guitar for an upcoming campfire set and need medium-gauge, long-lasting strings, tools to remove and trim the old set during installation, and comfortable picks for playing afterward."}
{"candidate_id": "dev-cdfa27c80bf04362a6e37317", "partition": "agent_dev", "positive_items": ["B000GB3HSK", "B09RBFKS1X", "B0BKZ6M28F"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m upgrading my drum kit for double-bass playing and need a foot pedal, protection for the bass drumhead from repeated strokes, and precise tension-based tuning for the whole kit."}
{"candidate_id": "dev-ce1da3d5cc6b858e98616e4a", "partition": "agent_dev", "positive_items": ["B015JTEBN8", "B0BK6MQF3Z", "B06X9KG3HW"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a small home studio to record vocal and guitar demos, and need a USB recording connection, an adjustable stand for positioning the microphone, and reliable balanced cables for connecting the microphones to my audio setup."}
{"candidate_id": "dev-ce3151fde3d40b50b089aa05", "partition": "agent_dev", "positive_items": ["B0B3VD8DZ8", "B0B69VXJ6G", "B00TVFYE2U", "B09LTZ1QXP", "B0B2Z13RCR"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my acoustic guitar ready for a bluegrass rehearsal and small gig, with balanced strings, articulate picks, an adjustable strap, quick restringing help, and a secure stand for breaks between playing."}
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{"candidate_id": "dev-ce6321a5470029b937d5f12a", "partition": "agent_dev", "positive_items": ["B01LYVQ864", "B000EEHKVY", "B00DHK5ZLO"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I'm setting up a small electric guitar performance with vocals and need a stable microphone setup, a safe place to rest the guitar between songs, and quieter high-gain tones."}
{"candidate_id": "dev-ce66c3104ecfc3ac10435bea", "partition": "agent_dev", "positive_items": ["B004ZKIHVU", "B06XSS3PXL", "B01DK40R3M", "B073XXLVWT"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m assembling a guitar effects pedalboard for rehearsals and gigs, with studio-style compression, close-spaced patching, secure pedal mounting, and isolated regulated power for multiple effects."}
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{"candidate_id": "dev-ce78ce6a273cc5cf5688408e", "partition": "agent_dev", "positive_items": ["B086QN18MT", "B01D4DH5A2", "B06Y2W66F5", "B0C621L9FB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I'm putting together a portable guitar setup for writing funky, atmospheric song ideas at home and on the go, with lush modulation, expressive envelope sweeps, built-in rhythms and looping, and a small battery-powered amp."}
{"candidate_id": "dev-ce86f3a3ef40d203dd6ec77d", "partition": "agent_dev", "positive_items": ["B01DOEPUTE", "B0C4S6PJ25", "B082WVMFYB", "B07NKSD9ZM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my drum kit for home recording and practice: I need to mic the full kit, control unwanted overtones, replace the 16-inch head for a deeper sound, and practice quietly away from the kit."}
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{"candidate_id": "dev-cea24bb706601b4bc069e4fc", "partition": "agent_dev", "positive_items": ["B0B8M5FJB6", "B00N4ZHQ14", "B0B2T1LF1L"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I'm preparing for a small live guitar performance and need comfortable hands-free support, quick key changes between songs, and a reliable way to connect to an amp or PA while switching instruments quietly."}
{"candidate_id": "dev-ced9b57918a745340e2090ad", "partition": "agent_dev", "positive_items": ["B07NSWD8BR", "B08DBDD6CM", "B001JNARF0"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m putting together a small karaoke setup for a party and need an adjustable stand for the speaker, a durable dynamic vocal microphone, and a long XLR cable to connect everything."}
{"candidate_id": "dev-cedfbafbc60902939e6df0ea", "partition": "agent_dev", "positive_items": ["B0002DW8RI", "B07DFXYYJ4", "B075GKTV88"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restringing the instruments for a small home recording session and need dependable sets for electric guitar, acoustic guitar, and four-string bass, with bright acoustic tone, reliable tuning, and a warm, punchy low end."}
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{"candidate_id": "dev-cf1182d7b173d7fda4d84932", "partition": "agent_dev", "positive_items": ["B008BPI2OW", "B0B8P1YW7L", "B0BSGM6CQ9"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m replacing the strings on my electric guitar and want a faster way to wind them, a heavier-gauge nickel set for playing, and a reliable clip-on tuner to get everything properly tuned afterward."}
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{"candidate_id": "dev-cf2283bac54c66bc8d744283", "partition": "agent_dev", "positive_items": ["B01BZBAGFG", "B01M4QZNO8", "B0C6J1JZB2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my guitar-and-amplifier setup for regular gigs and need a reliable way to attach the strap, protect the amp during transport, and tune by ear."}
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{"candidate_id": "dev-cf9ed7322c6a14114028538d", "partition": "agent_dev", "positive_items": ["B0002F50VW", "B0002F4N0Q", "B00347A452"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a compact live percussion performance and need stable adjustable speaker support, a nearby clamp-on surface for small essentials, and wire brushes for creating varied textured sounds."}
{"candidate_id": "dev-cfaee453e8679edbb6ab1e4c", "partition": "agent_dev", "positive_items": ["B00N2MIM7Q", "B002YO1O7S", "B09BF8XDF4"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m organizing an acoustic folk jam and need fresh, long-lasting guitar strings plus simple hand percussion for steady backbeat accents and crowd-friendly rhythm."}
{"candidate_id": "dev-cfcaf6fa522d7466b2a948f1", "partition": "agent_dev", "positive_items": ["B016PHMM34", "B07N5NMWXK", "B0B8NXV975"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a lap-style guitar for practicing slide music and need an easy way to keep it in tune, a smooth tone bar for fretting notes, and reliable picks for plucking and rhythm playing."}
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{"candidate_id": "dev-cfedd9c6d241dd966ec5a25c", "partition": "agent_dev", "positive_items": ["B01MRSPOWU", "B08PBNXZYP", "B0844GD543", "B092147RFT", "B07KDYH2DF"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a bass pedalboard for live gigs and studio sessions, with easy onstage tuning, warm chorus, preamp boost, detailed EQ control, and reliable isolated power for several effects plus AC-powered accessories."}
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{"candidate_id": "dev-d05b6265c831f73879f97c4e", "partition": "agent_dev", "positive_items": ["B09P3ZVLV8", "B0CBSS454S", "B0C3LHKVRW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a simple DMX-controlled lighting rig for a small dance floor, with a motorized mirror ball, convenient power for pinspots, an easy controller for speed and lighting, and short XLR connections between the gear."}
{"candidate_id": "dev-d05ced76ad61a4de0ac6f4d9", "partition": "agent_dev", "positive_items": ["B0B8LQFN3C", "B00H35YIJE", "B0BTC9YJ2W"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my 12-string acoustic ready for regular playing and want a warm, extra-light string setup, a comfortable adjustable strap, and secure strap attachment so it’s safer to play standing."}
{"candidate_id": "dev-d060f38162117fdbd6680d46", "partition": "agent_dev", "positive_items": ["B00KLLKE04", "B09V91H5XM", "B073T28TDJ"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m preparing my V-shaped electric guitar for gigs and home practice, and need a comfortable adjustable strap, secure travel protection, and a padded folding rack to keep several guitars accessible between rehearsals."}
{"candidate_id": "dev-d06a4157eed92efd01a75699", "partition": "agent_dev", "positive_items": ["B01E6T56EA", "B091MZPYBQ", "B016QUXTZU"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a small home vocal-recording station and need a simple way to connect my microphone to a computer while reducing breath pops, wind noise, and moisture during singing."}
{"candidate_id": "dev-d070eaeef7b4dd83182053e2", "partition": "agent_dev", "positive_items": ["B07N2HNC81", "B08T69L2K9", "B015WD6FIK"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m restoring a right-handed Tele-style electric guitar and need reliable six-in-line tuning, string-retention hardware, and a warm Alnico bridge pickup for a complete functional rebuild."}
{"candidate_id": "dev-d0adfa6cd705219578ea2dd4", "partition": "agent_dev", "positive_items": ["B07N5CGZN8", "B075SVSZJ8", "B07MXPQKGB", "B09RTZ26KV"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refreshing my Epiphone-style Les Paul with coordinated replacement trim, a blank headstock cover I can personalize, secure mounting hardware, and reliable high-grip picks for play-testing the finished guitar."}
{"candidate_id": "dev-d0bfa47365d3774ee24efd76", "partition": "agent_dev", "positive_items": ["B071H89736", "B0BKR2ZM9X", "B01DPCONFM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing my Stratocaster for a vintage-style electric setup and need hardware for stable tuning, classic single-coil character, and reliable connection to my amp during rehearsals and gigs."}
{"candidate_id": "dev-d0d9327ffaf6f7c297aa4914", "partition": "agent_dev", "positive_items": ["B09396NY1C", "B00RVE9X06", "B0BPJ4Q6FJ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a six-string electric guitar in Nashville tuning to record doubled parts, and need fresh strings plus a long instrument cable for the amp run and a shorter cable for a nearby connection."}
{"candidate_id": "dev-d0dd41aaf25c5b33730f3afd", "partition": "agent_dev", "positive_items": ["B06XW4SNFG", "B01E6T56CM", "B07K2J841D"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home recording station for vocals and guitar, with clean microphone connections, USB recording to my computer, and closed-back headphones for accurate, isolated monitoring while I mix."}
{"candidate_id": "dev-d0ef5406b04d907319770f48", "partition": "agent_dev", "positive_items": ["B0BK9YKQFR", "B098PJDQTG", "B07F3JJ18D"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact recording and live-performance signal chain that connects several instruments and mixer channels, keeps cable runs organized, and eliminates ground-loop hum and unwanted buzz."}
{"candidate_id": "dev-d11f7e34e90ad25292d1a6e2", "partition": "agent_dev", "positive_items": ["B06XT71KDY", "B0002CZTIO", "B08DM9NFLH"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home guitar practice corner with secure wall storage, convenient access to picks, and quick, accurate tuning before I play."}
{"candidate_id": "dev-d127cef2eebdf0632b3ca219", "partition": "agent_dev", "positive_items": ["B07DV2RVTV", "B08MKGMQ74", "B0BKNKFYD5"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a five-string bass setup for rehearsals and gigs, including a comfortable shoulder strap and sturdy hardware to securely attach or replace the neck on a Fender-style instrument."}
{"candidate_id": "dev-d14527b1005558a0c2f890f4", "partition": "agent_dev", "positive_items": ["B01DE4DTAG", "B07WW5PKCP", "B0BXT384GR"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my electric guitar ready for rehearsal and need a way to keep picks within reach, clean and protect the finish, and connect it reliably to my amp."}
{"candidate_id": "dev-d15eda76278fff548b67056d", "partition": "agent_dev", "positive_items": ["B0BFKQ9QXD", "B0BG95DG2H", "B000ZMYRJS", "B0BSGM6CQ9"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a versatile home guitar practice routine, restringing both my electric and acoustic guitars, practicing electric parts quietly through headphones, and keeping plenty of comfortable heavy picks on hand for daily playing."}
{"candidate_id": "dev-d1626f5d8b79ce8f7476742d", "partition": "agent_dev", "positive_items": ["B0BKZ6JR1L", "B07MQPMS7S", "B09H149G4V"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my snare setup for recording and expressive practice, with smooth brushwork on coated heads, stronger wire response and projection, and long, versatile sticks for controlled dynamics."}
{"candidate_id": "dev-d17b4dbb896143c08132988c", "partition": "agent_dev", "positive_items": ["B018PQJ33U", "B00IFHCOUO", "B01K1EJQ9U"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m starting to learn electric guitar and want a complete beginner setup for practicing at home, with an easy way to keep my picks handy and a clip-on tuner to help me stay in tune."}
{"candidate_id": "dev-d1cc7f8dd1d1559efd6f7a8e", "partition": "agent_dev", "positive_items": ["B07J5FVQNT", "B079TLFL33", "B0BL38ZMVZ", "B0B9M4SJ24", "B0BSGM6CQ9"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m getting my electric and acoustic guitars ready for regular practice and live performances: I need fresh strings for both, a way to clean and condition the instruments, secure strap attachments, and durable picks for rhythm and lead playing."}
{"candidate_id": "dev-d1cd2ef86dc18d4fac6fc814", "partition": "agent_dev", "positive_items": ["B0B8M5FJ9W", "B07BSZNKTM", "B08R5GM6YB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my guitar ready for a small performance and need an easy way to restring it, a secure strap that works with the existing end pins, and a quick clamp for changing keys between songs."}
{"candidate_id": "dev-d1ef9429c090aae5382640be", "partition": "agent_dev", "positive_items": ["B001EEO8IQ", "B07BSZNKTM", "B08BW2TBD7"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact multi-instrument rehearsal space and need secure stands for my alto saxophone and guitar, plus an easy-to-adjust capo for quickly changing guitar keys between songs."}
{"candidate_id": "dev-d2112d70cefd60a77a770a85", "partition": "agent_dev", "positive_items": ["B00KMDVKUO", "B00H7Y2X8O", "B018FCZKR2"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I'm refurbishing my electric guitar and need to rewire its volume and tone controls, add a secure removable strap connection for playing, and keep it safely supported between sessions."}
{"candidate_id": "dev-d212cc6c1f70784201656326", "partition": "agent_dev", "positive_items": ["B00HB2ZVRC", "B0C61YQFHH", "B0C4SP3PH1", "B0B1989GQS"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a guitar rig for expressive live performances, with quick key changes, touch-sensitive grit, spacious ambience, and smooth foot-controlled volume swells for building dramatic parts."}
{"candidate_id": "dev-d220ce35f135b405e350183b", "partition": "agent_dev", "positive_items": ["B010PYRUZ8", "B0BH49Q6ZS", "B0002GODI2", "B01H0PACWI"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live karaoke and open-mic rig with laptop music, several wireless microphones, and speakers on stands, so I need reliable audio connections, microphone holders, and hardware to fit the speakers securely."}
{"candidate_id": "dev-d26ab8bfdb39cd05f4674fa8", "partition": "agent_dev", "positive_items": ["B001L4Z37E", "B001QVLUAQ", "B0BSGM6CQ9"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m upgrading my electric guitar for versatile blues-to-heavy-rock playing and need a warm, clear neck sound, a tight crunchy bridge sound, and heavier-gauge strings to complete the rebuild and handle stronger tuning stability and feel."}
{"candidate_id": "dev-d2710dacb947ebd367b86627", "partition": "agent_dev", "positive_items": ["B07L76YQKD", "B08T2MQ5RV", "B0796CFWKG"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m making a short documentary with on-camera interviews and need a discreet lapel mic, the right connector to feed it into recording gear, and a compact recorder for clean audio on location."}
{"candidate_id": "dev-d29174592d40d2e5493f37f2", "partition": "agent_dev", "positive_items": ["B078JGMF6M", "B0928HW2P4", "B0BHSG5C3G"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m giving my guitar a full setup and refresh, including accurate tuning, precise string-action measurements, and cleaning and conditioning the wooden fretboard."}
{"candidate_id": "dev-d2a901764eb78d1eb3438245", "partition": "agent_dev", "positive_items": ["B0006V6SB8", "B00IPHSVPQ", "B00IPH8KPC", "B0000WS42Y"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up my electric guitar for a blues-rock practice and recording session, needing versatile distortion, fresh light-gauge strings, dependable picking, and smooth slide playing."}
{"candidate_id": "dev-d2f37dbff652c39fd431d422", "partition": "agent_dev", "positive_items": ["B0B8FSCM9L", "B0BMYW4F1P", "B01DE4DPSC"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I'm getting my bass ready for regular practice and need a fresh, deeper-sounding string setup, a reliable lead for connecting it, and a portable way to build finger strength and coordination between sessions."}
{"candidate_id": "dev-d34bd22c92dcdd9169c25084", "partition": "agent_dev", "positive_items": ["B0147TRAKM", "B07MHR1CQB", "B07MZYNZ1C", "B07CVSKHDV"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a comfortable multi-instrument practice station and need an adjustable padded seat, a trumpet setup for clear, controlled playing, plus easy-playing tenor sax reeds and a supportive neck strap for longer sessions."}
{"candidate_id": "dev-d363ecdca7193217c5601b18", "partition": "agent_dev", "positive_items": ["B0036E8DE2", "B00GI2L1RK", "B07RJ2XMDK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live vocal performance and need reliable sound mixing, a switched handheld microphone, and long connections to control several stage lights."}
{"candidate_id": "dev-d364a780fd8107e7b4871297", "partition": "agent_dev", "positive_items": ["B00HTWQWWM", "B079HP2PFK", "B00CK2DM7Y", "B00H35YIJE"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a versatile guitar practice space for my collection, with secure wall storage, safer strap attachment, slide playing, and a compact way to practice quietly through headphones."}
{"candidate_id": "dev-d3ab2c40b728bd90bae88d2a", "partition": "agent_dev", "positive_items": ["B00TO9L08O", "B076ZSHQ47", "B00KIZROW4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restringing my acoustic guitar and getting it ready for rehearsals, so I need light-gauge bronze strings, a quick way to wind them, and added strap and cable security without modifying the instrument."}
{"candidate_id": "dev-d3dd096a1f0016c58adda694", "partition": "agent_dev", "positive_items": ["B01DVF4OD4", "B00T3GL2XQ", "B07N1RPV4J"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for a concert where I’ll play clarinet and alto sax, and need to compare several sax reed styles while keeping all my reeds protected and properly humidified between rehearsals."}
{"candidate_id": "dev-d3f453c48e19b9d6965b9bfa", "partition": "agent_dev", "positive_items": ["B0BPLFP5P6", "B0B8FSCM9L", "B08T2N25MR"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a compact electric-guitar practice routine for learning scales and chords, with accurate tuning, amplified clean and overdriven tones, basic playing accessories, and an off-instrument hand exercise to build finger strength and coordination."}
{"candidate_id": "dev-d4092f28ec71cb67be826b76", "partition": "agent_dev", "positive_items": ["B08MZ7QXP3", "B07YYZY148", "B07BBNS4ZL"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing an import-style electric guitar and need an adjustable replacement bridge, matching control hardware, and a secure wall-mounted way to store and display it at home."}
{"candidate_id": "dev-d40a1cb3841bc480e3297b6d", "partition": "agent_dev", "positive_items": ["B07HBG8JGT", "B07Q4HQKF1", "B077SVN4X7", "B016QVUZP6", "B000EENBF8"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m building a compact jazz percussion setup for recording, with a replacement 14-inch wood batter hoop, gentle bamboo sticks, a boom-mounted trashy cymbal effect, and removable dampers to control unwanted resonance."}
{"candidate_id": "dev-d460204a1a097b1198366c5b", "partition": "agent_dev", "positive_items": ["B097Q9W8MW", "B00RVE9X06", "B00H35YIJE"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up my electric guitar for rehearsals and small gigs, and need reliable transport protection, a way to keep the strap securely attached, and a long cable for connecting to my amplifier."}
{"candidate_id": "dev-d464f0d120f84e70fc260829", "partition": "agent_dev", "positive_items": ["B09Z93N9WG", "B00O5EL4MA", "B00NPAMDQ6"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a small live music PA and need long balanced connections for microphones, plus a way to duplicate a stereo signal into two mixer inputs."}
{"candidate_id": "dev-d4a19cc6205849bbeb7d2eb8", "partition": "agent_dev", "positive_items": ["B01AW50ADE", "B0939BV175", "B081T636X2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small amplified jazz-funk performance where I’ll play saxophone alongside electronic instruments, so I need comfortable hands-free support, a cable to connect an instrument to the rig, and short balanced patch connections between the audio gear."}
{"candidate_id": "dev-d4dfb9626421407c40672239", "partition": "agent_dev", "positive_items": ["B09PBL98Q4", "B0009FJ1NS", "B008J7XSFK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my 4-string bass setup: I want a warm, clear, low-noise pickup upgrade, flexible long-lasting stainless strings, and compact connectors for chaining pedals on a space-saving board."}
{"candidate_id": "dev-d4eb28df9e147853db122d9b", "partition": "agent_dev", "positive_items": ["B0179C3Q20", "B0B6H49Q71", "B004STXT2K"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a polished small event stage and need colorful RGB and UV lighting, an easy way to link fixtures to power, and a tidy cover to hide cords and tripod legs."}
{"candidate_id": "dev-d544c583162009d2cac3ecd4", "partition": "agent_dev", "positive_items": ["B076YGNCLW", "B01FX69CHW", "B003E1LE7A"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a small live-band setup and need a five-string bass with powerful sound, a mixer that can handle the group, and a comfortable strap for long rehearsals and performances."}
{"candidate_id": "dev-d54993b02ec7165f0f8026d1", "partition": "agent_dev", "positive_items": ["B07C91JT14", "B08DBDD6CM", "B01822KRA0"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a small live vocal performance with several singers, reliable XLR connections to the mixer, and a rugged floor monitor so performers can hear themselves clearly."}
{"candidate_id": "dev-d550dc8d8086bcd0d74907bd", "partition": "agent_dev", "positive_items": ["B096GKS5SZ", "B0B6JP6KZ6", "B00GM0NX3S"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a compact setup for rehearsing and recording pop covers, with creative vocal effects, a bright accent for my drum kit, and a space-saving way to carry sticks and mallets."}
{"candidate_id": "dev-d552096c12b460cebfaf7fd6", "partition": "agent_dev", "positive_items": ["B081MBZ38C", "B01LT6Z0XA", "B07LBF9F4X"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m restoring a vintage-style four-string bass and need compatible replacement hardware to refresh the headstock tuning, fit a new bone nut, and properly retain the strings."}
{"candidate_id": "dev-d583a4637b4a1052633afb98", "partition": "agent_dev", "positive_items": ["B07CXJ8VWD", "B00IPHSRN2", "B01AW50JXA"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a reliable guitar rig for live gigs and need a way to secure my strap, connect compact effects pedals neatly, and keep my wireless transmitter or receiver protected while performing."}
{"candidate_id": "dev-d589c277cee9ed86e3f4cd72", "partition": "agent_dev", "positive_items": ["B01DPCONFM", "B09N425TWM", "B07D1WM2G6", "B07226MCY6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for an electric guitar performance and need a reliable setup for hands-free amp effects and preset changes, comfortable support, dependable connection, and making replacement picks."}
{"candidate_id": "dev-d59fc590157c85a86a6192b2", "partition": "agent_dev", "positive_items": ["B09JMYM88H", "B0BXT6TM6N", "B01K1EJQ9U"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a compact guitar practice station for two instruments, with secure storage, picks within easy reach, and one versatile tool for quick hardware and strap-lock adjustments."}
{"candidate_id": "dev-d5ad63f5bf9828a5056a495c", "partition": "agent_dev", "positive_items": ["B01F09PI2U", "B079TLFL33", "B07T41F22R"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refurbishing my metric Les Paul-style electric guitar and need parts to update the control knobs, redo the internal wiring, and secure the strap connection for dependable playing."}
{"candidate_id": "dev-d5bc61f066345ce991ff7710", "partition": "agent_dev", "positive_items": ["B07GSJNMBQ", "B01DK43HMK", "B000165DSM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home recording rig for vocals and keyboard parts, and need reliable connections for a condenser microphone, MIDI equipment, and routing the mic signal into my mixer or interface."}
{"candidate_id": "dev-d5d63f8ecfb7e8ec41b08166", "partition": "agent_dev", "positive_items": ["B07RBPRZ3X", "B08XNVH7WT", "B07VTP4MM5"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a small live-sound setup and need to run speakers over a long distance, make custom microphone and mixer cables, and install secure XLR connections into a rack or patch panel."}
{"candidate_id": "dev-d5dc1375e2b1801fd8a25894", "partition": "agent_dev", "positive_items": ["B001PGMNRG", "B091YFQGCJ", "B07477HRCN", "B003UNL46I", "B00ANR1QA8"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m outfitting a compact rehearsal and recording room for a multi-instrument ensemble, with secure storage for bowed and fretted instruments, stable support for a two-keyboard setup, a ported bass drum front head, and convenient high-precision monitor volume control."}
{"candidate_id": "dev-d619a8fc2ce4f5d13761f4bf", "partition": "agent_dev", "positive_items": ["B07T65GWFV", "B06Y5L3CYJ", "B07FXWLZ9D"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m starting electric guitar lessons and need a compact short-scale instrument that’s easy to carry, protected during trips, and supported with the basic tools for string changes, cleaning, and setup."}
{"candidate_id": "dev-d68962a0ffd0e409966d2cd4", "partition": "agent_dev", "positive_items": ["B0BLYBWB8R", "B00CGS5Z6S", "B0928J8MWV"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a powerful rock drum setup for rehearsals and live practice, with an explosive crash sound, stable hardware for mounting and playing, and a comfortable adjustable throne for long sessions."}
{"candidate_id": "dev-d6a594cf094d16b4b6f50617", "partition": "agent_dev", "positive_items": ["B017WAUTL0", "B01D0XWVBY", "B017WAMNTQ", "B09PJ3N73Y"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I'm building a compact electric-guitar rig for rehearsals and gigs: I need several short angled patch leads to connect my effects pedals neatly, plus a case for transporting a Stratocaster- or Telecaster-style guitar."}
{"candidate_id": "dev-d6e24d525235533065b1f9a3", "partition": "agent_dev", "positive_items": ["B00186L9X2", "B073XXLVWT", "B088DD5M4V"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact electric guitar pedalboard for atmospheric practice and small gigs, with clear instrument connections, spacious repeating effects, and dependable isolated power."}
{"candidate_id": "dev-d7275212051c58bc14479abf", "partition": "agent_dev", "positive_items": ["B09RN7GR8F", "B0BYXQHW7Y", "B0BYXJ6JKZ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home podcast recording station and need a broadcast-style microphone, an adjustable boom arm to position it, and an audio interface with enough inputs for adding instruments or another microphone later."}
{"candidate_id": "dev-d7300e3e970fe120697d709b", "partition": "agent_dev", "positive_items": ["B086QNCLQ8", "B0775GHCMS", "B0817D9XBH"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m recording an experimental bass track and need a compact setup for adding harmonics without losing attack, creating punchy analog-style synth textures, and shaping everything through a versatile overdriven preamp for a polished studio tone."}
{"candidate_id": "dev-d767ccb39b1f8b6930033ba9", "partition": "agent_dev", "positive_items": ["B07BHM7RKB", "B09VGKX444", "B09HGWCKK9", "B00OO0XTB4", "B09G5KLKX2", "B09Y8JZTQH"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m assembling a DIY ST-style electric guitar and need the hardware for stable tuning and string guidance, expanded pickup switching, reliable control knobs, and a warm-sounding set of nickel strings to finish the build."}
{"candidate_id": "dev-d7a230c47ba79b7a13bfa1a0", "partition": "agent_dev", "positive_items": ["B075MPFFRV", "B0BJ3713V2", "B06X1C3GWZ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing my guitar rig for rehearsals and small gigs, with hands-free tuning, replacement parts to get my full-size volume pedal working properly, and pop-in wheels to make moving my amp around easier."}
{"candidate_id": "dev-d7b2390779d770772f71a8b7", "partition": "agent_dev", "positive_items": ["B07TB5G826", "B0BKZ3CWFB", "B07P51VX37"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my Epiphone Les Paul or SG for a cleaner vintage look and better playability, with replacement humbucker surrounds, a new toggle selector plate, and durable medium picks for setup and testing."}
{"candidate_id": "dev-d7c30343518bbc77a221f351", "partition": "agent_dev", "positive_items": ["B00N4Q25R8", "B0BMD89RVL", "B0024VWZUG"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m assembling a rack-mounted sound system for a rehearsal space and need to measure and tune the room, power passive speakers cleanly, and securely mount the equipment in the rack."}
{"candidate_id": "dev-d7cbe1e355a2b61f7376a159", "partition": "agent_dev", "positive_items": ["B004TQJ174", "B01DE4D4LU", "B00RVE9X06"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact electric-guitar pedalboard and need a long cable to connect my guitar, a short right-angle patch lead for tight pedal spacing, and a distortion pedal for saturated rhythm and lead tones."}
{"candidate_id": "dev-d7d846bd74dceb856ef71c27", "partition": "agent_dev", "positive_items": ["B07DK59QNR", "B0BSGM6CQ9", "B07B8WL33G", "B01DE4DTAG", "B01DE4DPSC", "B08JMQR2JK", "B06XB3FQKB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a small electric-guitar rehearsal space and need secure stands for several instruments, connection leads in different layouts and lengths, a heavier-gauge string set, finish and fretboard care, and compact 9V pedalboard power."}
{"candidate_id": "dev-d7ebf1025af97edb361ccebe", "partition": "agent_dev", "positive_items": ["B09396NY1C", "B09G5KLKX2", "B0BYJN7JWQ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my electric guitar setup for a warm classic-rock tone and need everything to restring it, connect it to my gear, and play comfortably."}
{"candidate_id": "dev-d8116df94293e0f2d702d77c", "partition": "agent_dev", "positive_items": ["B0098DFNY8", "B018Z5C4QE", "B01DE4DTAG", "B01M0IQ5QI", "B07D78R96K", "B00BJLC50M"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring an electric guitar and need materials to refret the neck, replace the tuning hardware, refresh the volume and tone controls, install reliable output jacks, and test the finished instrument with a suitable cable."}
{"candidate_id": "dev-d833a712ed92143a409d0cd1", "partition": "agent_dev", "positive_items": ["B01MRA6A7C", "B00EB11U8U", "B08VJB4D5X"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m restoring and customizing my electric guitar, improving tuning stability, upgrading its neck and bridge tones, and adding durable racing stripes for a distinctive finish."}
{"candidate_id": "dev-d88214f6f06a48f8e6f1e0fd", "partition": "agent_dev", "positive_items": ["B0BJ8WDC13", "B00RVE9X06", "B077GK1J7N"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a blues practice and jam setup for electric guitar and harmonica, with an expressive foot-controlled wah, a long instrument cable for connecting to my amp, and a C harmonica for classic blues phrases."}
{"candidate_id": "dev-d8d2bafb6643dec6ee949e09", "partition": "agent_dev", "positive_items": ["B006WAB01U", "B017Y3WS3M", "B0BKNRQ8Y4", "B09R2TMLJR"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a beginner-friendly left-handed guitar practice rig and need an easy chord-learning aid with tuning, comfortable hands-free support, a cable for connecting to an amp, and precise picks for practicing."}
{"candidate_id": "dev-d91ea8220dcbfeb61ee77c24", "partition": "agent_dev", "positive_items": ["B086KQWM26", "B07XH591BH", "B07N4365G6", "B07SRDVZSL"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a small DIY synth rig for experimenting and recording, and need flexible patching for modular signals, a way to connect the instrument cleanly to a mixer, and accurate headphones for monitoring and mixing."}
{"candidate_id": "dev-d93ac8e211334779941f37d4", "partition": "agent_dev", "positive_items": ["B077GH8LF6", "B0032WBK5M", "B071H41DFS", "B0C621L9FB", "B004LG93KC"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I'm building a versatile electric-guitar pedalboard for recording classic rock and atmospheric parts, with smooth overdrive, controlled hiss, lush modulation, swirling phase, and warm adjustable repeats."}
{"candidate_id": "dev-d94ff9671e2feadb96988a3c", "partition": "agent_dev", "positive_items": ["B0938M9LX7", "B09P3ZVLV8", "B00KCXL09A", "B09396NY1C"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact live acoustic performance setup with a guitar, vocal microphone, mixer, and powered speakers, and need reliable instrument, balanced XLR, and right-angle connections for routing everything cleanly."}
{"candidate_id": "dev-d9c2fd93caa5dd06b177f9ad", "partition": "agent_dev", "positive_items": ["B0BCXRXTNY", "B004W7ZWB4", "B00HMRXEUW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my Telecaster with a distinctive new look, adding a custom neck plate, a mint green pickguard, and an adjustable tan strap for playing comfort."}
{"candidate_id": "dev-d9c76cc398bf6ab50c5d420e", "partition": "agent_dev", "positive_items": ["B00B7G2OAU", "B0BKZ2BPGS", "B09LJ2796G"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m upgrading my drum kit for energetic rehearsals and need a bright cutting accent, a durable resonant metallic percussion voice, and matched tom heads that balance attack, tone, and sustain across different sizes."}
{"candidate_id": "dev-d9f7ed7f11db7b38fb21347b", "partition": "agent_dev", "positive_items": ["B0B8M5FJB6", "B09S3XJJD5", "B0928HW2P4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring my guitar for regular playing and need to clean and condition the fretboard, handle a proper setup and adjustments, and add a comfortable adjustable strap for rehearsals and gigs."}
{"candidate_id": "dev-da2fc12b795626b533cea52a", "partition": "agent_dev", "positive_items": ["B00BESRB8Q", "B0BKZ3GCGR", "B0BT862N4P"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a simple setup for practicing six-string guitar at home, with flexible amplification, quick key changes for different songs, and comfortable picks for playing."}
{"candidate_id": "dev-da5ab7365ce0a132e5959641", "partition": "agent_dev", "positive_items": ["B07N5J3GTB", "B091MZPYBQ", "B08DBDD6CM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home vocal recording session and need a handheld microphone with clear projection, a long XLR connection to my mixer or recorder, and protection from wind and moisture during singing."}
{"candidate_id": "dev-da5c2949195f9f9e2f3f07e0", "partition": "agent_dev", "positive_items": ["B0BMZ3PZ3G", "B07MZX2WQQ", "B07B4ZZVDV"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a post-rehearsal care routine for our band’s French horn and tenor saxophone, with safe internal horn cleaning, a quick way to remove moisture from brass instruments, and something to keep the saxophone’s pads clean and playing consistently."}
{"candidate_id": "dev-da6e06e074ab7d6b894e088f", "partition": "agent_dev", "positive_items": ["B08BSFDY99", "B0002D0CAI", "B00IFHCOUO"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my acoustic guitar for regular practice and want the essentials to restring it, tune it accurately, and have a comfortable selection of picks for exploring different playing styles."}
{"candidate_id": "dev-da88847c31e3ba611108f986", "partition": "agent_dev", "positive_items": ["B00N4ZHQ14", "B071RLH95D", "B0BGQG84Y4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a versatile beginner guitar practice space with both acoustic and electric tones, plus easy one-handed pitch changes for learning songs across different instruments."}
{"candidate_id": "dev-da90483d3bd3db5766295d80", "partition": "agent_dev", "positive_items": ["B08DBDD6CM", "B07N5J3GTB", "B001PGXIVG", "B0B8FSCM9L"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a guitar-and-vocal rehearsal setup with accurate guitar tuning, finger-strength and callus practice away from the instrument, plus a dynamic vocal mic and 20-foot XLR connection for recording or routing through my mixer."}
{"candidate_id": "dev-da9248fe5081d74466ea36b0", "partition": "agent_dev", "positive_items": ["B00KCXL09A", "B0829XV248", "B0BS7YRB5G"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable DJ setup for small events and need a wheeled case that fits two turntables and a 10/12-inch mixer, plus short balanced connections and a way to split an XLR signal to multiple mixer inputs."}
{"candidate_id": "dev-da96b51bbeaf3c8491cc4acc", "partition": "agent_dev", "positive_items": ["B00N5TH2H2", "B01K1EJQ9U", "B074WXM13T"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my electric bass ready for rehearsals and gigs and need an easy way to carry it, keep it secure while traveling, and access picks quickly while playing."}
{"candidate_id": "dev-daadd9200f0dd4855ca4c55d", "partition": "agent_dev", "positive_items": ["B0B8LSRYSJ", "B07CQ19T1J", "B076T5BQJ2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a vintage-style electric guitar rig for rehearsals and small gigs, and need reliable pedal power, a compatible 6L6GC replacement power tube for my amp, and a durable adjustable strap for playing comfortably onstage."}
{"candidate_id": "dev-dab87f71473f2eb7b7d3ad95", "partition": "agent_dev", "positive_items": ["B00IPH8MD2", "B08JMQR2JK", "B074WXM13T"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small guitar practice and jam area, and need to keep several guitars safely accessible, play standing, and try different pick styles while practicing."}
{"candidate_id": "dev-daff3ac7f1dd73f725cc5c60", "partition": "agent_dev", "positive_items": ["B0002GXPRM", "B0002T67K6", "B0179C3V7K"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a small vocal performance and need a stable floor-mounted microphone setup with a secure mic holder and adjustable boom positioning for different singers."}
{"candidate_id": "dev-db20cb83f37821c42d595982", "partition": "agent_dev", "positive_items": ["B01M0IQ5QI", "B013W4593I", "B0B8F6LD9F"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring a three-string cigar box electric guitar and need reliable hardware for mounting the strings, vintage-style wiring for the electronics, and a replacement input connection to finish the rebuild."}
{"candidate_id": "dev-db39d938c7846eab11abab8b", "partition": "agent_dev", "positive_items": ["B0CBSSQ6RC", "B0BKZ3GCGR", "B0BSGM6CQ9", "B09M7P8SBH"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a new electric guitar for regular practice and want picks plus spare light-gauge and heavier-gauge strings so I can compare tension and tone while finding my preferred setup."}
{"candidate_id": "dev-db7003f9c7663f9813668fb6", "partition": "agent_dev", "positive_items": ["B06XF6NF5Y", "B0C5YS1Q4S", "B01C5G2UYK", "B01B15JPCQ"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a beginner-friendly home piano station and need a compact keyboard with learning support, a height-adjustable stand, a comfortable matching seat, and a compatible sustain pedal for expressive practice."}
{"candidate_id": "dev-dbe722bff0a7d44eec62c389", "partition": "agent_dev", "positive_items": ["B006MH1GFI", "B00DM4LT10", "B008TNAHX0", "B06XCZXQ1K"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m assembling a compact acoustic guitar effects rig for small live performances, with smooth compression, spacious chorus, reliable power for multiple pedals, and flexible connectors to fit everything neatly on a pedalboard."}
{"candidate_id": "dev-dbec0845b6c45f762ae39042", "partition": "agent_dev", "positive_items": ["B000FNDREI", "B000B6DTZQ", "B001QXDVME"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a compact live percussion setup for funk and electronic grooves, with an auxiliary hi-hat, mounted block sounds, and a reliable boom stand for positioning everything."}
{"candidate_id": "dev-dbf9950b0a6f13b867b059e4", "partition": "agent_dev", "positive_items": ["B0002F740C", "B0002CZT1G", "B09MJWYTQW", "B0BSGM6CQ9"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for a small rock band rehearsal and need to refresh both an electric and a classical guitar, while also picking up dependable accessories for playing guitar and drums in one order."}
{"candidate_id": "dev-dc41eb1e1b8b1c52cbbf7b3e", "partition": "agent_dev", "positive_items": ["B0047VIXBG", "B08FYJWN21", "B09398HH18"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live music performance and need to split one microphone signal across two mixer channels, connect the mixer with outboard effects or amps over long balanced runs, and keep printed arrangements readable while performing."}
{"candidate_id": "dev-dc4eb0d53c2c08427f5de92d", "partition": "agent_dev", "positive_items": ["B0B89ZSYS7", "B09RN7GR8F", "B00NPAMDQ6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home podcast and vocal-recording station and need a warm-sounding broadcast mic, a USB interface for high-quality recording, and long XLR connections so I can position everything comfortably."}
{"candidate_id": "dev-dc618c4bd212416997207454", "partition": "agent_dev", "positive_items": ["B0C4RBG7N1", "B075ZDCFFX", "B005SN72XW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for a small live percussion performance and need protective bags for my bongos and mixer, plus a stackable rolling case with wheels and a retractable handle for transporting the setup."}
{"candidate_id": "dev-dc7f5a9a1061f37bae257739", "partition": "agent_dev", "positive_items": ["B07CRK35NG", "B0BFKQ9QXD", "B074KRRZCH"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refreshing an acoustic guitar for a recording and need a warm-toned full string set, an extra plain steel replacement for a custom setup, plus polish and a cloth to clean the body and reduce light scratches."}
{"candidate_id": "dev-dc86e8e3fae89cd09cfaae02", "partition": "agent_dev", "positive_items": ["B00U31IDXM", "B01AW50JXA", "B01K1EJQ9U", "B015XDJB9E"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a guitar rig for live rock gigs and need reliable tuning, heavier overdrive tones, quick access to spare picks, and a secure way to carry my wireless bodypack."}
{"candidate_id": "dev-dc924ff9d3026cf2eaa1dfd5", "partition": "agent_dev", "positive_items": ["B07D1GNLDM", "B07HQ948LD", "B01MSJW92G"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a compact hands-on electronic music setup for composing and performing, with an accessible semi-modular sound source, a portable analog sequencer, and a dedicated digital percussion unit for creating rhythmic patterns."}
{"candidate_id": "dev-dc9a11370fa3fcde626b4132", "partition": "agent_dev", "positive_items": ["B00IHAQR5W", "B0087HEO64", "B0BV2F2YFC", "B0018GR9VI"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m putting together a portable world-music performance and recording setup: I need an easy-to-play didgeridoo with a protective carry solution, an ocarina for melodic parts, and a versatile microphone kit for capturing everything at home or on the go."}
{"candidate_id": "dev-dcb2b06f354b877ac5400122", "partition": "agent_dev", "positive_items": ["B079C7K7TD", "B00IKVD02G", "B0BKZ3886V"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a mobile drum gig and small live-sound setup, so I need a durable way to carry sticks, route multiple stage inputs to the mixer, and quickly check assorted audio cables for continuity before playing."}
{"candidate_id": "dev-dcd8d56251df252d2405b80a", "partition": "agent_dev", "positive_items": ["B013MN8CKG", "B072538J3S", "B0B8M2Q1DS"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up my Telecaster for live gigs and need to modernize its wiring, build tidy custom-length connections for my effects pedals, and play comfortably with an adjustable leather strap."}
{"candidate_id": "dev-dce4f2f3a11f7644deebe5af", "partition": "agent_dev", "positive_items": ["B005SUX1ZS", "B000RLK84U", "B000EEL7B8", "B000EENEY6"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I'm preparing my alto saxophone for marching band and need a way to hold music while playing, keep the instrument clean, protect its end during transport, and support practice with a portable stand."}
{"candidate_id": "dev-dcf8a40121a9e2ad89f4542d", "partition": "agent_dev", "positive_items": ["B0BG95DG2H", "B091BHPJTP", "B07ZXWW1FP"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a left-handed electric guitar for regular practice and want a comfortable instrument, plenty of picks for playing, and a secure way to hold it while I clean, restring, and perform basic maintenance."}
{"candidate_id": "dev-dd0dc54983b058ccaf55c2ef", "partition": "agent_dev", "positive_items": ["B01BLLCOGY", "B0C3LKRRFZ", "B0B9TT7SR7"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a home bass practice and looping station, and need a versatile four-string bass, a precise way to check its string height, plus hands-free control for presets, effects, tuning, and loops."}
{"candidate_id": "dev-dd1c776bf32acee38d5b90ed", "partition": "agent_dev", "positive_items": ["B08DBDD6CM", "B0C4XQ496G", "B00NACMTGI", "B0C698B5WR"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a small home recording setup with two microphones on adjustable stands, several balanced XLR signal runs, and a way to connect an XLR output to a 1/4-inch input."}
{"candidate_id": "dev-dd1dc6900073c41898d3176a", "partition": "agent_dev", "positive_items": ["B0762RWRTW", "B07Y6TSTS2", "B075MCRFYZ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a compact live guitar pedalboard and need tidy short connections between effects, plus external controls for setting delay tempo and switching a compatible function on or off with clear status indication."}
{"candidate_id": "dev-dd44eedc2743c1e0471406b3", "partition": "agent_dev", "positive_items": ["B08R5GM6YB", "B00H4PEMM6", "B079T9KWGQ"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m restringing my 12-string acoustic for mellow fingerstyle playing and need low-tension strings, an all-in-one tool for winding and trimming, plus a capo for changing keys."}
{"candidate_id": "dev-dd5be5be7c888199a4ef875d", "partition": "agent_dev", "positive_items": ["B01DK1RHK6", "B002G1UT5C", "B00CGFRJ2Y", "B000EEJJI6", "B005ZV5K0O", "B08R5GM6YB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact guitar practice station where I can safely wall-mount my guitar, restring it, experiment with finger and flat picking, change keys with a capo, and connect my phone’s audio output to an amp for play-along practice."}
{"candidate_id": "dev-ddac68024d7b12a5de2c08f4", "partition": "agent_dev", "positive_items": ["B09QZJ57YW", "B07CRK35NG", "B00TV90MT0"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m repairing and restringing my guitar and need a soft neck support for safe maintenance, a replacement plain steel string, and comfortable picks for testing it afterward."}
{"candidate_id": "dev-ddd6381c84f1debc60193daf", "partition": "agent_dev", "positive_items": ["B01DK40R3M", "B08BW2TBD7", "B011DWBHNC", "B008I5QPVM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting on a small live guitar show and need a portable setup with secure guitar storage, compact pedalboard connections, and reliable long-distance DMX control for stage lighting."}
{"candidate_id": "dev-ddd6b5b6e1f0d9598e7db0c5", "partition": "agent_dev", "positive_items": ["B00CE2GO3E", "B001AWWN6Q", "B0006V6SB8"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up my electric and acoustic guitars for a blues and roots recording session, wanting warm, sustained electric tones, bright projecting acoustic accompaniment, and a glass slide for expressive bottleneck parts."}
{"candidate_id": "dev-ddf2c7900fcb690ec8fba0f2", "partition": "agent_dev", "positive_items": ["B08R5GM6YB", "B00GI2L1RK", "B01L3RKEW2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for a small acoustic open-mic set and need a setup for singing, keeping rhythm with hand percussion, and restringing my guitar so everything sounds polished and stage-ready."}
{"candidate_id": "dev-de0521b8f33d11653718bc74", "partition": "agent_dev", "positive_items": ["B07QRS6X5D", "B0188WO6OC", "B097FMTZCP", "B0BR2G8WYG"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m doing a careful setup on my Fender American Stratocaster and need a protected bench surface, a way to keep the guitar secure, versatile nut adjustments, and a replacement spring to steady the tremolo arm."}
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{"candidate_id": "dev-de47abba0e32ae22c82ebdaf", "partition": "agent_dev", "positive_items": ["B0B8M5FJB6", "B09LS8JNPL", "B07XP6MHQT", "B01DE4DVO0", "B072DXPHC3", "B00CPLODUU", "B00CIO6BEA"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a versatile guitar setup for practice and small performances, with adjustable strap support, quick instrument changes, thumb-picking options, reliable amplification connection, fast acoustic transposition, and a way to carry both ready-made and custom picks."}
{"candidate_id": "dev-de4a7cbe177de90bc3ed4198", "partition": "agent_dev", "positive_items": ["B088KV7L18", "B07C855XSB", "B0928KFR97", "B08T2LJ62N", "B0C5Y549L5", "B0B3LJZXK7", "B0C621L9YS"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m building a compact home setup for recording guitar and electronic parts: I need reliable pedalboard power, tidy patching, accurate tuning, flexible EQ, a switchable vintage-style phaser mod, plus MIDI keys and an interface with mic, headphones, and software for production."}
{"candidate_id": "dev-de4a7d6a2950333698e188b5", "partition": "agent_dev", "positive_items": ["B00M1L1ADM", "B000OC1QTS", "B07BYFZWTL"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m upgrading my vinyl and home-theater listening setup and need a detailed moving-coil cartridge, reliable headshell wiring for installation, and an isolation platform to reduce subwoofer vibrations and coloration."}
{"candidate_id": "dev-de52e847007fbf3eee16eac0", "partition": "agent_dev", "positive_items": ["B07DWLYGKH", "B07MGDNP57", "B09QZJ57YW", "B018FCZKR2"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m getting my acoustic guitar ready for regular practice and small jam sessions, so I need longer-lasting strings, options for both thumb-led fingerpicking and strumming, and a stable folding stand to keep the instrument safely within reach."}
{"candidate_id": "dev-de56345c6418f1564568311f", "partition": "agent_dev", "positive_items": ["B01GMLOKD8", "B075MRMFM8", "B082WVC3RT"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my drum kit for rehearsals and gigs, and need durable replacement heads in the right sizes plus a convenient way to keep my sticks, mallets, brushes, and drum key organized and within reach."}
{"candidate_id": "dev-de7e0f139a8678131905b43f", "partition": "agent_dev", "positive_items": ["B07PSWC1XY", "B01DPCONFM", "B0036E8DE2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home recording session for vocals and electric guitar, and need a way to reduce vocal plosives, combine several microphone and instrument signals, and connect the guitar reliably to the recording setup."}
{"candidate_id": "dev-de93362427b9f288746876ef", "partition": "agent_dev", "positive_items": ["B08R5GM6YB", "B093YKLWVN", "B0BFKKVQZT", "B00CGFRJ2Y"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my acoustic guitar for regular playing and need bright replacement strings, an easy way to remove and install them, fretboard cleaning oil, and comfortable thin picks for practice."}
{"candidate_id": "dev-dec48a7bdfddcc5c3d422bd1", "partition": "agent_dev", "positive_items": ["B016N63LHI", "B0BK6SKPRP", "B093YLCJVH"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a comfortable home piano practice station and need a full-size digital piano with realistic tones, a compatible damper-style sustain control, and an adjustable padded bench that folds away for storage."}
{"candidate_id": "dev-decff175f5a2f319044898e9", "partition": "agent_dev", "positive_items": ["B005T800V2", "B093T1LQV3", "B00NPAMDQ6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live music and recording rig and need reliable connections for microphones, a long run to the mixer, splitting one signal between systems, and organizing several instruments or effects pedals."}
{"candidate_id": "dev-dedb21be11c1797ebff9fe64", "partition": "agent_dev", "positive_items": ["B07GC8BN6B", "B078X2XFW3", "B01DP0H4N2", "B06XWLXCFC"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live guitar-and-vocal performance and need a compact guitar amp, reliable XLR connections for the microphone, and a DMX lighting control setup with cabling for programmable stage scenes."}
{"candidate_id": "dev-df037942515f281570c075da", "partition": "agent_dev", "positive_items": ["B0092S3XEQ", "B0C4DG9Z5G", "B01BHPZQ1O"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact solo acoustic-guitar setup for live performances, with hands-free realistic drum accompaniment, reliable wireless freedom onstage, and simple onboard tone shaping and gain control for a clear amplified sound."}
{"candidate_id": "dev-df329d36cd403a369d823934", "partition": "agent_dev", "positive_items": ["B07DWRNL54", "B00N4ZHQ14", "B09BF8XDF4"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m getting ready for a casual acoustic-guitar and bass jam, so I need durable replacement strings for both instruments and lightweight capos to switch keys quickly during practice and performance."}
{"candidate_id": "dev-dfb75738184800d75265e2d8", "partition": "agent_dev", "positive_items": ["B01MRJUB7Z", "B01878M5JK", "B07226MCY6", "B00EM5UOE6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a beginner-friendly guitar setup for practicing at home and recording demos, with room-filling amplified sound, comfortable hands-free playing, quick key changes, and a simple way to capture both vocals and guitar on my computer."}
{"candidate_id": "dev-dffe6689e9edc06f1de77afc", "partition": "agent_dev", "positive_items": ["B0BF3RB6DS", "B000S5JFZI", "B00WUT50GI"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact setup for recording and performing acoustic-style songs with my electric guitar, including a pedalboard for organized effects and a hands-free microphone for clear vocals."}
{"candidate_id": "dev-e011aaf4cea9dc612bea97cf", "partition": "agent_dev", "positive_items": ["B0BQ4HSKC9", "B0BM71QK8M", "B0039PPW60"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home recording and rehearsal station and need a USB mixer plus reliable balanced connections for microphones, including both a long run across the room and a short patch connection."}
{"candidate_id": "dev-e03ce03d7530234c7b3a012f", "partition": "agent_dev", "positive_items": ["B00N5TH2H2", "B00H4PEMM6", "B0B96H2CHT", "B08JMQR2JK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for a small band rehearsal and need a practical way to carry and protect the bass, keep multiple instruments safely off the floor, quickly change guitar keys, and play comfortably while standing."}
{"candidate_id": "dev-e03f1a89358f5783614c1723", "partition": "agent_dev", "positive_items": ["B07TC29D61", "B075B63CXK", "B073V4YPN7"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring my 4-string Jazz Bass and want a coordinated upgrade that protects the bridge, refreshes both pickup areas, and replaces the control knobs with USA-spec compatible hardware."}
{"candidate_id": "dev-e050a2c5b011fab95398bbab", "partition": "agent_dev", "positive_items": ["B012P7NEW6", "B0BKZ6LS16", "B0002OSF0Q"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing to write and perform original acoustic guitar songs, so I need durable music manuscript paper for composing, reliable medium picks for playing, and a protective padded bag for transporting my guitar."}
{"candidate_id": "dev-e09d0780258db84b34b0a4cd", "partition": "agent_dev", "positive_items": ["B015TBAAT0", "B0B8P1YW7L", "B09V4JQTN4"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m getting my acoustic guitar ready for regular practice and small performances, and need comfortable hands-free support, reliable clip-on tuning in dim venues, and durable strings that can handle frequent playing."}
{"candidate_id": "dev-e0f494507ef5e95c049f765a", "partition": "agent_dev", "positive_items": ["B004FLN6TM", "B0002F4NMY", "B000VI8ZOY"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m restarting violin practice and want to refresh my bow with new natural hair, add suitable rosin, and follow a structured method book covering technique, theory, and duet playing."}
{"candidate_id": "dev-e109de39a729e1f484b8ef93", "partition": "agent_dev", "positive_items": ["B00IYYRPJS", "B0002DV0CW", "B001ECQQ8I", "B01HRGQOEA"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m assembling a compact home music workstation with a MIDI controller connected to my computer or iPad, balanced audio routed into my sound setup, and rack equipment securely mounted while keeping the enclosure properly ventilated."}
{"candidate_id": "dev-e12b6cd7dd6d0e39abd60f35", "partition": "agent_dev", "positive_items": ["B00GK73HI4", "B008ON48AI", "B002NLYIBG"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing a Fender-style electric guitar and need a compatible pre-slotted nut, traditional chrome control hardware, and a passive electronics refresh for three volume/tone controls with a .022uF tone capacitor."}
{"candidate_id": "dev-e14938e3fca787512e0a72a6", "partition": "agent_dev", "positive_items": ["B06ZZB4VD2", "B077H2LW3Y", "B00NPAMDQ6", "B017DNYI0E", "B01B15JPCQ", "B00RVE9X06", "B01DL6E84I"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable seated keyboard-and-vocal setup for small gigs and rehearsals, with stable support for the keyboard and microphone, reliable audio connections, comfortable playing height, and a padded way to transport the keyboard safely."}
{"candidate_id": "dev-e14c35820045756adb71c1ed", "partition": "agent_dev", "positive_items": ["B00186L9X2", "B004U1QDL0", "B077GK1J7N"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m building an electric guitar pedalboard for a psychedelic blues set, with spacious repeats, pulsing volume movement, and expressive frequency sweeps for live performance."}
{"candidate_id": "dev-e19e66f788aaf77b30fa8e3d", "partition": "agent_dev", "positive_items": ["B07N5J1YNN", "B07LG345LV", "B0002F79E8"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m organizing a playful group music workshop and need simple hand percussion, plenty of colorful wind instruments for participants, and an adjustable stand to display music or activity instructions."}
{"candidate_id": "dev-e1ab93c69a13cc736aca2cca", "partition": "agent_dev", "positive_items": ["B0027V760M", "B09BF8XDF4", "B09R2TMLJR"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my acoustic guitar for a small amplified recording or gig and need fresh long-lasting medium-gauge strings, precise picks, and a reliable way to send the instrument’s signal cleanly to a mixer while managing hum."}
{"candidate_id": "dev-e1d27912f836c2d365eab0d6", "partition": "agent_dev", "positive_items": ["B002G1UT5C", "B0B8P1YW7L", "B09RN7GR8F"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a guitar recording session and need fingerstyle picking support, quick clip-on tuning, and high-quality USB recording with enough inputs and outputs to add microphones or other instruments."}
{"candidate_id": "dev-e1ea5aa871ef8a6f2aa38d1a", "partition": "agent_dev", "positive_items": ["B08NCLL528", "B0719KM5Y8", "B07SRDVZSL", "B00CAKSVTU", "B07CYRYQ8G"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home studio to restore an electric guitar’s controls and tone circuit, then record it alongside an analog synth through a multichannel interface while monitoring and mixing accurately."}
{"candidate_id": "dev-e1fd5a91c3403fbf00b4ab28", "partition": "agent_dev", "positive_items": ["B088JQZDLZ", "B09W4R3MQ6", "B0749YR91Y"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a home-and-travel setup for my acoustic guitar, with secure wall display, lightweight protective transport, and comfortable pick options for different playing tones."}
{"candidate_id": "dev-e20ba9a0369021bf9e770025", "partition": "agent_dev", "positive_items": ["B08DM9NFLH", "B00H35YIJE", "B0B8LK7MTH"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home guitar station and need a way to hang my instrument without marking its finish, use a strap while playing, and securely attach the strap so it won’t come loose."}
{"candidate_id": "dev-e2275ccfe2b34cd4f1236455", "partition": "agent_dev", "positive_items": ["B0BT8GVK6M", "B014395NKU", "B078JX247H"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my guitar corner with a compact setup for playing and singing, replacement control knobs for my guitar, and a distinctive wall hanger to store and display it."}
{"candidate_id": "dev-e23419a2a0a58e414b8c34dc", "partition": "agent_dev", "positive_items": ["B09SZK8WJ5", "B0BPCBF14C", "B0C6HXYY3R"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home electric-guitar practice area where I can keep my instrument safely on the wall, tune it accurately, and plug in for amplified playing with the basic accessories I need."}
{"candidate_id": "dev-e2387cbba6ecd67248b1e0c5", "partition": "agent_dev", "positive_items": ["B004MN99AI", "B0002F6RUA", "B001JBXF2O", "B0B8Z6192W"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m upgrading my electric guitar into a versatile HSS-style instrument, replacing a worn Floyd Rose saddle, installing a noise-reduced single-coil and rail humbucker, and adding a reliable five-way pickup selector with matching hardware."}
{"candidate_id": "dev-e25e201394f74466a7deeb63", "partition": "agent_dev", "positive_items": ["B00LWHC1A2", "B0BKR9BCVK", "B077H1WCSS", "B09JWL3BF9"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my full-size violin for a recital: replace its worn strings, remove old rosin and grime, polish the instrument without scratching it, and prepare the bow for smooth, reliable playing."}
{"candidate_id": "dev-e2be85ecc02cf2ec926b7fdf", "partition": "agent_dev", "positive_items": ["B0BKKRKM2Q", "B0BXT6TM6N", "B0B8YWPB3K", "B0BT2Q355P"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my steel-string guitar and need to change the strings efficiently, make careful tuning-machine and hardware adjustments without scratching the finish, then check the completed setup while playing capoed chords."}
{"candidate_id": "dev-e2f9f3e509a56c54855080a2", "partition": "agent_dev", "positive_items": ["B08DM9NFLH", "B07GFH8NTB", "B08R5GM6YB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small acoustic-guitar corner at home and want to mount the instrument safely while giving it a fresh, warm-sounding set of strings, with a practical tool to remove the old strings and restring it cleanly."}
{"candidate_id": "dev-e3158b452444ddca65e30026", "partition": "agent_dev", "positive_items": ["B072HG7ZZ1", "B094DT79SM", "B008R2WZ92"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable live music setup and need clear onstage monitoring, protected transport for rack gear, and a cable to connect a stereo source to the PA."}
{"candidate_id": "dev-e33535b55c5826982bfd7239", "partition": "agent_dev", "positive_items": ["B01FPQ11BK", "B00E3XY6LE", "B09C1BN6LL"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m recording a small live music session and need a portable multitrack setup with expandable microphone and instrument inputs, plus closed-back headphones for monitoring performances on location."}
{"candidate_id": "dev-e36725fc15d546d3d80e0c13", "partition": "agent_dev", "positive_items": ["B0C3LHMKVN", "B005J3EZZY", "B09V4JQTN4"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing for a small multi-instrument performance where I’ll switch between guitar and baritone saxophone, so I need comfortable hands-free support for playing, plus a stable, adjustable stand to safely hold the sax between sets."}
{"candidate_id": "dev-e37168f78246f511e1d0e6fc", "partition": "agent_dev", "positive_items": ["B08XYTW5S2", "B08953DWNX", "B071956ZTY", "B0BL8897K3"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m restoring my electric guitar and need a stable work stand, tools to reshape and polish worn frets, plus padded storage for transporting it safely afterward."}
{"candidate_id": "dev-e38383de6e34a9733fe80779", "partition": "agent_dev", "positive_items": ["B00LTDOL02", "B00CIO6BEA", "B001677QO4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my acoustic guitar setup for regular practice and want fresh light-gauge strings, comfortable heavy picks, and a secure wall-mounted way to store the guitar without damaging its finish."}
{"candidate_id": "dev-e390ad80b38bf663cef1938a", "partition": "agent_dev", "positive_items": ["B0CBSR9VF7", "B0BLLXSJMM", "B07NSWD8BR"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a small karaoke and announcements station for a community party, with wireless music playback, clear vocal input, and an elevated, adjustable speaker setup."}
{"candidate_id": "dev-e3bcc6fa8e6e09d3015989ac", "partition": "agent_dev", "positive_items": ["B003B1GY8M", "B0BK6S85WX", "B016T96QQ2", "B0B949FD92"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a comfortable alto sax setup for regular practice and small rehearsals, with a responsive mouthpiece and secure fit, adjustable neck support, and a portable stand for keeping sheet music at eye level."}
{"candidate_id": "dev-e3d1f32b030b3e47a1b982c4", "partition": "agent_dev", "positive_items": ["B091F4D8NF", "B0B8M1RZWV", "B08JMQR2JK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m outfitting a small guitar rehearsal space and need adjustable playing support, replacement strap-mount hardware, and secure padded stands for several instruments."}
{"candidate_id": "dev-e433f5db4cc217e22c4a078f", "partition": "agent_dev", "positive_items": ["B0CB98SMQR", "B003GEBGA0", "B002A4H3XQ", "B07F5PX9Y3"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing a home guitar-and-vocal recording project: I want to refresh my Stratocaster’s electronics, have reliable picks for tracking, capture the amplified guitar with a dynamic mic, and record vocals through a separate handheld mic and cable."}
{"candidate_id": "dev-e44b6f5cb3257ba072625ac2", "partition": "agent_dev", "positive_items": ["B01DN7OC00", "B01LW9JEWQ", "B0B95V41NR", "B000165DSM"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a small live acoustic performance with guitar, a PA speaker on a tripod stand, an XLR microphone run, and a way to connect a 3.5mm camera microphone output to the mixer."}
{"candidate_id": "dev-e4881b7e9ef8128c7b1e72c2", "partition": "agent_dev", "positive_items": ["B09SQ4LFTH", "B005SUX05Y", "B093YGLXQP"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a simple worship music setup to learn guitar with guided lessons while adding hand percussion and crisp pedal-controlled jingle accents for practicing and accompanying songs at home."}
{"candidate_id": "dev-e4bbd24f7b43002cafbba262", "partition": "agent_dev", "positive_items": ["B00GQ5FQV6", "B002N8CCIU", "B00H7Y32C0"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact home band and karaoke setup, and need reliable rhythm triggering, comfortable support for a guitar while playing, and colorful foam covers for several handheld microphones."}
{"candidate_id": "dev-e4ce35e3b67aac59688a199d", "partition": "agent_dev", "positive_items": ["B09D8VQY2D", "B0BKZ1KXLM", "B09MMT45P1"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a portable drum rehearsal and recording station, with replacement heads for my 12- and 13-inch drums plus an adjustable stand to hold my laptop or mixer at a comfortable playing height."}
{"candidate_id": "dev-e4da7bb59ef042df88028d07", "partition": "agent_dev", "positive_items": ["B071H7DRWY", "B008BPI2OW", "B0C5PRQ9K6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home guitar practice and performance area and need a secure way to store my instruments, speed up string changes with a cordless screwdriver, and connect my amp from across the room."}
{"candidate_id": "dev-e5908fe006e03338317d0497", "partition": "agent_dev", "positive_items": ["B0883TDWNT", "B0B31RCL2G", "B003M551ZO"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m upgrading my electronic drum kit for a small live performance and need an additional mesh tom, expressive ride sounds, and a compact mixer to combine the kit’s audio."}
{"candidate_id": "dev-e5dd77ae3710cd8008ac4865", "partition": "agent_dev", "positive_items": ["B01DPCONFM", "B01DK40R3M", "B001CWHI1Y"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact electric-guitar pedalboard for rehearsals and small gigs, with a classic fuzz sound, dependable connections between pedals, and a long cable to reach my amp."}
{"candidate_id": "dev-e5ec94bacafacc3c63b09f6f", "partition": "agent_dev", "positive_items": ["B0158GWWJ2", "B09BF8XDF4", "B00C86FA0E"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my steel-string acoustic guitar for a home recording session, with fresh long-lasting strings, easy key changes, and vibration-isolated condenser mic placement."}
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{"candidate_id": "dev-e61d46bbc5334a03754d1812", "partition": "agent_dev", "positive_items": ["B003HZNP1G", "B09N425TWM", "B074JF4CMN", "B0BLLXXT6F", "B07MG8PHF2"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing a live solo guitar-and-vocal setup: I need a warmer bridge pickup, hands-free wireless singing, a secure way to carry the transmitter on my strap, an adapter for the bodypack’s audio connection, and foot control for amp effects and presets."}
{"candidate_id": "dev-e662e575398e87e9296419f9", "partition": "agent_dev", "positive_items": ["B00AU9U3ZS", "B09ZTJH58K", "B071CSRJ1S"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a small stage lighting rig and need to control several RGB or RGBW LED fixtures, connect them reliably in a DMX chain, and terminate the line properly."}
{"candidate_id": "dev-e6937227743f255c292e7d1a", "partition": "agent_dev", "positive_items": ["B00Y3T1292", "B01JKHKXZK", "B00HX40OL6", "B0C29K9R76"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m filming outdoor interviews and field videos, and need a compact on-camera audio setup with secure lavalier mounting, replacement foam covers, and furry wind protection for clearer speech in breezy conditions."}
{"candidate_id": "dev-e7431224ed395a0e1366270f", "partition": "agent_dev", "positive_items": ["B06X1D2Z7L", "B07F59MTVD", "B076KT6T8R", "B00NJ2DFEO"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a custom electric guitar and need reliable neck reinforcement, accurately shaped fret wire, versatile dual pickups, and a durable adjustable strap for playing it comfortably."}
{"candidate_id": "dev-e75f4b287fb08ad6ba5702fc", "partition": "agent_dev", "positive_items": ["B07BHJH2Y8", "B09198262S", "B00JL5I57U", "B08BW2TBD7"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact practice station for guitar and baritone ukulele, needing fresh DGBE strings, reliable clip-on tuning, sturdy foldable instrument storage, and durable picks for guitar practice."}
{"candidate_id": "dev-e772d9d8dccdfffe7d86d9b6", "partition": "agent_dev", "positive_items": ["B007MY5BDI", "B0BPKH4HB2", "B08R5GM6YB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing the strings on both my steel-string acoustic and classical guitars and need an easy-to-play, projecting set for the acoustic, a light-tension warm, mellow set for the classical, plus one tool to wind, cut, and remove bridge pins."}
{"candidate_id": "dev-e7b637267fa174091bfb8788", "partition": "agent_dev", "positive_items": ["B0007Y8GSM", "B01KPTR5A8", "B004XLATPI"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a compact percussion setup for studio sessions and need organized, protected access to my sticks, a breathy accent cymbal for fills, and a smooth, soft shaker for subtle acoustic textures."}
{"candidate_id": "dev-e7efef726b9af6b46e65b69d", "partition": "agent_dev", "positive_items": ["B0889S5HMH", "B00NPAMDQ6", "B014PEZVKU"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a live guitar-and-vocal performance and need reliable connections for my microphone and GK-compatible guitar, plus a secure strap attachment for moving safely onstage."}
{"candidate_id": "dev-e844bad6b09c90b809d1edec", "partition": "agent_dev", "positive_items": ["B004OK1G64", "B01DK40R3M", "B0B59DLBMD"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact electric guitar pedalboard for rehearsals and want gritty, adjustable drive, tidy short connections between effects, and durable picks for playing and testing tones."}
{"candidate_id": "dev-e84e996fe91e42dccdc474a0", "partition": "agent_dev", "positive_items": ["B07ND5PQTP", "B09PN341YN", "B0BPJ4Q6FJ", "B092J5RWDP"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing a six-string electric guitar and need compatible two-point tremolo hardware, six sealed tuning machines, a way to polish the frets while the strings are off, and a bright, light-gauge set for restringing it in Nashville tuning."}
{"candidate_id": "dev-e8782ee8fe0b0fda9b7a8642", "partition": "agent_dev", "positive_items": ["B01K1EJQ9U", "B0BKZ3GCGR", "B018FCZKR2", "B0BT862N4P"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a beginner-friendly guitar practice corner where I can keep my instrument safely supported, have picks within easy reach, and plug in for clean or driven amplified practice with optional backing tracks and headphones."}
{"candidate_id": "dev-e87f84e438ad0a09a682744e", "partition": "agent_dev", "positive_items": ["B0C3LHVY8X", "B09HTV1RV3", "B00INNJZPC"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact classic-rock performance rig and need a way to stack a second keyboard, add adjustable distortion and sustain to my electric guitar, and control either instrument’s volume hands-free."}
{"candidate_id": "dev-e880813f3233c1fd2d7d1c9f", "partition": "agent_dev", "positive_items": ["B01MRSPOWU", "B00PGY0E9C", "B01DE4D4LU", "B006QUGBVK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a compact live looping rig for guitar and vocals, with guitar amp-style tone, flexible EQ for different rooms, vocal looping and microphone preamp support, plus short right-angle connections to keep the pedalboard tidy."}
{"candidate_id": "dev-e886904e0341719cd08cc16c", "partition": "agent_dev", "positive_items": ["B003HGR6VA", "B003A02PMS", "B0002E51C6", "B01G5YA7C0", "B078Y7ZDPK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a portable drum setup for recording and live gigs, with reliable bass-drum control, lightweight hardware, close-miking, and clamp-on mounts for auxiliary percussion and an additional hi-hat."}
{"candidate_id": "dev-e89d15f7ee7ac1e27a02ca04", "partition": "agent_dev", "positive_items": ["B015X653AM", "B0002F5GYS", "B000NGVQKO"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m learning mountain dulcimer and need comfortable fingerstyle control, a way to play the strings with a noter and pick, plus padded transport for the instrument and accessories."}
{"candidate_id": "dev-e8b31b5e635561613e0e574f", "partition": "agent_dev", "positive_items": ["B0BKZ3GCGR", "B0C4S58NLX", "B01LYJMH9P"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a portable practice rig for my single-cut electric guitar and need protective transport, a compact stand for safe resting between sessions, and comfortable picks for playing."}
{"candidate_id": "dev-e8e1b7206d9c0a19bb5c7162", "partition": "agent_dev", "positive_items": ["B079F1246V", "B0BJ3713V2", "B0BPJ4Q6FJ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring a compact electric-guitar rig for recording layered Nashville-style parts and gigs, so I need a high-strung six-string setup, replacement parts to get my volume pedal working, and protection for its 10-inch speaker."}
{"candidate_id": "dev-e93c9e11bdc1e956ac1fbe43", "partition": "agent_dev", "positive_items": ["B00H8BRK0M", "B07M81HC4C", "B07B9RTW7L", "B0007M424Q"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a full-size violin practice rig for quiet home playing and occasional recording, with warm stable strings, extra volume reduction, and accurate chromatic tuning."}
{"candidate_id": "dev-e975da19ace73ed4077b6a78", "partition": "agent_dev", "positive_items": ["B07683KZRF", "B096K2LZKH", "B0B8Z6HSK5"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a flexible guitar performance rig and need an easy way to switch between two amplifiers, keep my instrument securely attached while playing, and tune it accurately."}
{"candidate_id": "dev-e98766f45e8263df4137d98f", "partition": "agent_dev", "positive_items": ["B00BMJ3N4S", "B09BF8XDF4", "B0BKZ3GCGR"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m starting acoustic guitar and need a complete beginner setup: a dreadnought instrument, reliable long-lasting replacement strings, comfortable picks, and the essentials to tune, carry, and play it standing up."}
{"candidate_id": "dev-e9de85575d93ca9ef39f8564", "partition": "agent_dev", "positive_items": ["B01MA1PDIJ", "B01E6T547Y", "B07JNKY9T8"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m creating a small studio recording of didgeridoo and vocals, and need a compact instrument with authentic drone tones, a detailed condenser mic, and enough simultaneous inputs for clean computer recording."}
{"candidate_id": "dev-e9e25607b6cff9852b75eacd", "partition": "agent_dev", "positive_items": ["B071H41DFS", "B0731HKT3X", "B07FYL7LW1"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together an Eddie Van Halen-inspired guitar rig for live playing and need a comfortable adjustable strap alongside pedalboard-friendly phaser and flanger effects for swirling, classic rock tones."}
{"candidate_id": "dev-ea47006daea1ee1035f5004d", "partition": "agent_dev", "positive_items": ["B0C38LLMXG", "B0C3PY6TBR", "B0C5PRQ9K6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable PA for a small outdoor music performance and need a stable way to elevate the speakers, run them from the amplifier, and make short balanced connections between the audio gear."}
{"candidate_id": "dev-ea55aa6140e22ee6ba017280", "partition": "agent_dev", "positive_items": ["B00VMB7E0U", "B00JJIBUQW", "B079SYCBJ4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my bass for long-term storage and setup, so I need sturdy protective protection, a way to maintain safe humidity inside the case, and a precise tool for checking string action and saddle adjustments."}
{"candidate_id": "dev-ea65ba2f37df0a168a39ab64", "partition": "agent_dev", "positive_items": ["B007X7DN5M", "B001LXMXU0", "B09ZTJH58K", "B09ZSKPVVJ"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a computer-controlled DMX light show for a small event and need software for programming, reliable cables to link the fixtures and controller, a short stage connection, and proper termination for the lighting chain."}
{"candidate_id": "dev-ea76d5a30ad09fcefbe479cd", "partition": "agent_dev", "positive_items": ["B0BCHJXLV3", "B07ZKDBDK4", "B073R9B7T1"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m building a custom LP-style electric guitar and matching effects setup. I need a compatible unfinished 22-fret neck, quiet Alnico humbuckers for both positions, and clean isolated power for several pedals, including higher-current digital effects."}
{"candidate_id": "dev-ea9b5129fa5cc5074321077e", "partition": "agent_dev", "positive_items": ["B01448UA08", "B01MRJUB7Z", "B0BCL6T9CD", "B0BXBFG6BX"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing a solo acoustic guitar-and-vocal live set and need reliable connections for my instrument, flexibility for different song keys, and simple vocal doubling, reverb, and pitch correction for a fuller performance."}
{"candidate_id": "dev-eab7ccb30f267a9989359805", "partition": "agent_dev", "positive_items": ["B0BKZ3GCGR", "B00W4LSC6M", "B0BT8FDL8B"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing my Les Paul-style electric guitar for home practice and need replacement hardware for accurate intonation, comfortable picks for playing, and a compact amp for audible classic guitar tones."}
{"candidate_id": "dev-eac61629b42e8773bdafa37a", "partition": "agent_dev", "positive_items": ["B008TNAHXU", "B01ISJ8K8I", "B07CYRYQ8G"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home session to record blues guitar tracks with classic overdrive, spacious reverb, and enough simultaneous inputs for microphones and other sources."}
{"candidate_id": "dev-ead202dad98c7ceec65fec88", "partition": "agent_dev", "positive_items": ["B0BT8FDL8B", "B00IFOTSJW", "B01DPCONFM", "B0BKZ3GCGR"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact electric guitar setup for practicing and playing at home, with reliable tuning, comfortable picks, a way to connect the instrument, and small-scale amplification."}
{"candidate_id": "dev-eb376794fea3b0ae342bfa0d", "partition": "agent_dev", "positive_items": ["B00AY7XQNM", "B01DGCU7GK", "B001P3URBI"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring my four-string Jazz Bass and want a vintage-style appearance, clearer higher-output tones with reduced noise, and reliable replacement hardware for the strings and mounting."}
{"candidate_id": "dev-eb82ab77c098858d264ba137", "partition": "agent_dev", "positive_items": ["B00JL5HQXE", "B0741SXP2K", "B0BSGM6CQ9"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my electric guitar with a heavier-gauge setup and preparing a Mustang amp rig for rehearsal, including dependable picks and hands-free control of tuning, banks, and effects."}
{"candidate_id": "dev-eba88aeba06a060957a38b14", "partition": "agent_dev", "positive_items": ["B00RVE9X06", "B079HP2PFK", "B07X2LN3FV"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home guitar practice and display wall, with a reliable lead for plugging in, a glass slide for expressive playing, and secure mounts to organize several guitars safely."}
{"candidate_id": "dev-ebb31ebbce2ef363681b5a0d", "partition": "agent_dev", "positive_items": ["B0C5PRQ9K6", "B08ZYXT8W6", "B0C4YN3MMY"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing a small live acoustic-guitar performance and need to amplify the guitar, connect the sound system reliably, raise the PA speakers, and keep power and audio cables secured in a neat setup."}
{"candidate_id": "dev-ebca53dd9f2ef3062282b77f", "partition": "agent_dev", "positive_items": ["B007ZXWQ8E", "B073XXLVWT", "B008YTY9EC", "B0B2M1GPR7"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing my electric guitar and building a reliable performance setup, with replacement hardware for stable tuning and intonation plus a pitch-shifting effect and isolated power solution for my pedalboard."}
{"candidate_id": "dev-ebec9287b0523d52695f2ff2", "partition": "agent_dev", "positive_items": ["B00U5MZUBM", "B00XKP67V8", "B0039OMQ4M"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing my Floyd Rose-equipped electric guitar and pedalboard, so I need several low-noise, right-angle patch connections for the effects chain plus a compatible black replacement tremolo arm."}
{"candidate_id": "dev-ebee207872ad7db64dc56839", "partition": "agent_dev", "positive_items": ["B00FJEJLS4", "B07BWB1JC9", "B00B5I9GYW", "B01K1EJQ9U", "B0BPLFP5P6", "B0BKZ3GCGR", "B08R5GM6YB"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a home guitar station for both electric and acoustic instruments, with supplies for restringing and tuning, powered effects pedals, and convenient access to picks during practice and recording."}
{"candidate_id": "dev-ebf7a4d2a9668c60f65e2d42", "partition": "agent_dev", "positive_items": ["B086QMZG22", "B07DK59QNR", "B01DPCONFM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a simple electric guitar rig for practicing and playing loud rock tones, with an adjustable distortion sound, a long cable to reach my amp, and compact 9V power for the pedal."}
{"candidate_id": "dev-ec504abce991c6734a1de1ed", "partition": "agent_dev", "positive_items": ["B00KIZROW4", "B07NKRZ1KQ", "B00IFOTSJW"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a compact home guitar station and need a secure way to hang my classical guitar, quickly tune it for practice, and make string changes easier."}
{"candidate_id": "dev-ec75d0126787709fc7967567", "partition": "agent_dev", "positive_items": ["B017NT392Q", "B07XW3F5H5", "B0B7C7PYVC", "B01GGUTOFE"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a small vocal-and-bass rehearsal where three singers rotate through one adjustable boom position, so I need rugged handheld vocal mics with secure holders plus a fresh, smooth-feeling bass string set."}
{"candidate_id": "dev-ec9001473135836fe5d0da27", "partition": "agent_dev", "positive_items": ["B015XTFNP4", "B015JTEBN8", "B00CS4L7DK"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a compact home studio to record vocals and guitar demos on my iPad, with stable microphone positioning, cleaner vocal takes, and an interface for connecting my instruments to mobile recording apps."}
{"candidate_id": "dev-ecb527763ee873f50db8328a", "partition": "agent_dev", "positive_items": ["B0BLFYF2YK", "B07WW5PKCP", "B093YKLWVN", "B079TLFL33", "B096BHMVN1"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my guitar for live gigs and need an easy way to tune it, refresh the body and fretboard, and safely attach a comfortable adjustable strap that won’t come loose during playing."}
{"candidate_id": "dev-ecf021e52f4db3cf0b6f2280", "partition": "agent_dev", "positive_items": ["B000P3WE60", "B0002F54DQ", "B000GCO9OA"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m upgrading my trem-equipped electric guitar with a warm, punchy bridge sound and expressive neck tones, while building a portable rhythm section for writing and practicing new rock songs."}
{"candidate_id": "dev-ed07d3c87765b5d6846fe9be", "partition": "agent_dev", "positive_items": ["B07BBNS4ZL", "B002AKTLVM", "B079TLFL33"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home guitar practice corner where I can secure my strap, store the guitar safely on the wall, and keep sheet music at a comfortable, adjustable height while I play."}
{"candidate_id": "dev-ed0e1d2e530098725d83afb2", "partition": "agent_dev", "positive_items": ["B0BFKQ9QXD", "B00RX5HQS4", "B01H31ITWE"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refreshing my acoustic-electric guitar for practice and small amplified sessions, needing fresh rich-sounding strings, a range of picks to test my attack, and a dependable long instrument cable."}
{"candidate_id": "dev-ed1a3982aafa41ebaed95315", "partition": "agent_dev", "positive_items": ["B07X2LN3FV", "B07N5MJDBF", "B0BTC9YJ2W"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my 12-string acoustic ready for a slide-focused recording session and need a warm-toned slide, fresh extra-light strings, and everything necessary to clean, condition, and polish the guitar."}
{"candidate_id": "dev-ed43f0557c497271db98f28b", "partition": "agent_dev", "positive_items": ["B09KWWS7DH", "B0B8Z34DV5", "B09YDBKT7M", "B08XZQ5TRF"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a compact electric-guitar rig for recording and want a dependable long connection, convincing cabinet simulation without a full amp, and supplies to clean and protect the instrument and keep its strings feeling and sounding fresh."}
{"candidate_id": "dev-ed513caa6d17749c70ae424f", "partition": "agent_dev", "positive_items": ["B00GESEQ4S", "B0BT2XJDBM", "B00B5LFEMC", "B06XJ9CLN8", "B07FYRND1N", "B0064RTS0G"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home rehearsal and recording setup for electric guitar and mandolin, and need fresh strings, a secure playing strap and durable picks, hardware for a pickguard repair, a stand for the vocal mic, and fitted protection for my combo amp."}
{"candidate_id": "dev-ed56443e2df8bf22828ae55e", "partition": "agent_dev", "positive_items": ["B0BFKKVQZT", "B00IPHIPS4", "B0BZ5KMS85", "B0BSGM6CQ9"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for a live set and need to restring both my acoustic and electric guitars, while adding hands-free support and a large slide for expressive blues-style playing."}
{"candidate_id": "dev-ed613144fc4a56e4111c2712", "partition": "agent_dev", "positive_items": ["B01LKYTQOK", "B00LMRNIUE", "B07C9YCY5J"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a small tube-amp setup for practicing and performing with my ukulele, and need a reliable way to secure its strap plus the correct EL84 replacement for the compact combo amp."}
{"candidate_id": "dev-ed8694bf6b7068762cef79a9", "partition": "agent_dev", "positive_items": ["B091C1BDYV", "B0C4SP3PH1", "B075R58Q4Y"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing for a small acoustic gig and need to refresh my guitar’s strings, change keys quickly during songs, and run the guitar and other inputs through a powered mixer with effects and playback."}
{"candidate_id": "dev-ed883ec901a4b867d30d19d1", "partition": "agent_dev", "positive_items": ["B07PYQM5RY", "B002Q0WSMU", "B07K6PTRMV"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up my 4/4 cello for consistent practice and small performances, and need dependable bow control, easier precise tuning, and portable rhythm support."}
{"candidate_id": "dev-eda5959f8be2f5735c4d2754", "partition": "agent_dev", "positive_items": ["B07BR4GNMB", "B01447KF9U", "B096K2LZKH"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a reliable guitar rig for rehearsals and performances, with A/B signal routing, a secure strap connection, and right-angle 1/4-inch cable adapters for guitars with awkward bottom or front-facing jacks."}
{"candidate_id": "dev-ede1250f9d836fcdd2dce804", "partition": "agent_dev", "positive_items": ["B0C3LHMKWL", "B07MVPFQ2Y", "B09CLX9RDW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up for a multi-instrument woodwind rehearsal and need a secure stand for several saxophones and smaller winds, moisture-resistant tenor reeds for quick instrument changes, and an adjustable neck strap for my alto or soprano."}
{"candidate_id": "dev-ee04acba13a66a5d60f54f99", "partition": "agent_dev", "positive_items": ["B09HCVLH2K", "B001SRPZOU", "B0002D0LSG", "B0BKZ74NPY", "B074CM9YNY"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my drum kit ready for a gig: I need to service the snare, control unwanted overtones, refresh a 16-inch tom, make tuning adjustments, and safely transport the toms and percussion gear."}
{"candidate_id": "dev-ee18a850856df817c4040d26", "partition": "agent_dev", "positive_items": ["B000LPUV8K", "B0B2Z13RCR", "B09R2XFGH4"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m restoring my acoustic guitar and need parts to replace the worn bridge hardware, plus reliable picks for playing and an adjustable, comfortable strap for rehearsals and gigs."}
{"candidate_id": "dev-ee403c176f5318e0867ed095", "partition": "agent_dev", "positive_items": ["B074MJHWNW", "B072L41LP9", "B004LLV04E"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I want to develop and record a guitar song at home, capturing riff ideas, shaping a stronger guitar tone, and tracking polished parts with a microphone, headphones, and computer recording software."}
{"candidate_id": "dev-ee831abf9d87825362834df1", "partition": "agent_dev", "positive_items": ["B09B45DLQG", "B01BT1SUL4", "B001JJB2GM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home recording and mixing station and need reliable power management, accurate headphone monitoring, and powered low-end reinforcement for evaluating my mixes."}
{"candidate_id": "dev-ee89c764094d9200b6521058", "partition": "agent_dev", "positive_items": ["B003D2YRLA", "B0BPJ4Q6FJ", "B001W99HE8"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m recording a layered electric-guitar demo and need a Shure-compatible headset for hands-free vocals, a dynamic microphone to capture the amp or percussion, and light-gauge strings for Nashville tuning."}
{"candidate_id": "dev-ee8ce870fc0b1898da88aaf6", "partition": "agent_dev", "positive_items": ["B001VNYB14", "B0B2TND26L", "B0BKZ59BQZ"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refreshing my rock drum kit for an upcoming gig and need durable, punchy heads for the snare and multiple toms, plus reliable nylon-tip sticks for rehearsals and live playing."}
{"candidate_id": "dev-ee925fa3323dabbb5c663162", "partition": "agent_dev", "positive_items": ["B07GS5R4TX", "B00M6SGT7M", "B00EM5UOE6", "B00VRPHV2M", "B01DECWM0G"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a compact solo guitar songwriting setup for home practice, with automatic bass and drum backing, amplified guitar tones, a small mixer for balancing sources, and dependable cables to connect the rig."}
{"candidate_id": "dev-ee9b2e08f286bf233a189c55", "partition": "agent_dev", "positive_items": ["B000X2WRPQ", "B004R90IAW", "B07L8ZZFF5", "B00RX5HQS4", "B07T7ZSJXH"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a portable cello practice and rehearsal station with a stable stand, guided study material and play-along tracks, a replacement G string, and the ability to connect the instrument to an acoustic amplifier for louder playing."}
{"candidate_id": "dev-eeec03e926410a4c89ef8e1d", "partition": "agent_dev", "positive_items": ["B0BS8PZNGK", "B084F2HHWW", "B018FCZKR2", "B081T636X2", "B0CB98SMQR"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m putting together a compact rehearsal and small-gig setup for keyboard and guitar: I need a wheeled protective case for transporting the keyboard, reliable instrument connections, a stable guitar stand, and a versatile mic for capturing or amplifying the performance."}
{"candidate_id": "dev-ef0d323945c8ef1a36a3cc61", "partition": "agent_dev", "positive_items": ["B0002GJHYM", "B0BR2KL6QL", "B016QUXTZU"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home voiceover station and need adjustable microphone positioning, protection from plosive bursts, and isolation from desk vibrations so my speech recordings sound clean and consistent."}
{"candidate_id": "dev-ef222922f0595cf29f08d03a", "partition": "agent_dev", "positive_items": ["B0152ZZ7HI", "B0BHG58G2F", "B0BTC9YJ2W", "B00IFOTSJW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my acoustic 12-string and five-string bass ready for a gig: I need fresh strings for both, replacement tuning hardware for the bass, and a clip-on tuner to set everything up accurately."}
{"candidate_id": "dev-ef31efdffd1dccbd2823e9ef", "partition": "agent_dev", "positive_items": ["B01FS4JNVY", "B0002F6JFS", "B017DNZ3XK", "B07MZYNZ1C"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a comfortable home keyboard practice area and need an adjustable, stable playing position, seating suitable for long sessions, a way to keep my music organized, and protection from dust when everything is stored."}
{"candidate_id": "dev-ef5dd931e0f2c3d557d23ea3", "partition": "agent_dev", "positive_items": ["B0C1WLGB2J", "B000EENC70", "B0002H00ZQ", "B000EEHGE0", "B0BKZ6JR1L"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing a compact drum kit and need to restore the snare’s crisp response and reliable release, position it securely for playing, and properly fasten the bass drum hardware during setup."}
{"candidate_id": "dev-ef8fa359759f0a5bf280eb84", "partition": "agent_dev", "positive_items": ["B077Z9HF27", "B08ZFQ8GLV", "B017NT392Q", "B07PSWC1XY"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I want to set up a home vocal-recording station with a sensitive studio microphone, stable adjustable positioning, protection from plosive sounds, and USB connectivity for capturing clean performances on my computer."}
{"candidate_id": "dev-efa0f5d198053c3c84b5d69b", "partition": "agent_dev", "positive_items": ["B08V4QJ56P", "B0792VMY2Q", "B0BZ5QTMKT", "B07KP4G7LK", "B0BX8GFGCZ", "B00E6H5WV0", "B09RJZSQML"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home guitar recording rig and need reliable connections from my guitar through several pedals, shared pedal power, a flexible cable to the amp, and a close-miking setup for the speaker, plus durable picks for tracking parts."}
{"candidate_id": "dev-efa8e53e15b55d678d1664ab", "partition": "agent_dev", "positive_items": ["B0BBPRC48V", "B0042X9PIE", "B0007YNGRI"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m refreshing my rock drum kit for a deep, punchy classic-rock sound, with a resonant bass drum head that helps control muffling plus durable two-ply tom heads for low tuning, including both coated and clear finishes."}
{"candidate_id": "dev-efd78cd62379af483958955c", "partition": "agent_dev", "positive_items": ["B00CPLODUU", "B015X0KYCA", "B0002F75EM", "B0BXT384GR"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a small acoustic-and-drums performance and need rehearsal accessories that let me change keys on my six-string acoustic guitar, keep picks within reach, and practice steady drum parts with reliable wooden sticks and timing."}
{"candidate_id": "dev-f00696ecca230dc5a9c3468c", "partition": "agent_dev", "positive_items": ["B0BJB9NN5C", "B09JMYM88H", "B07M6H5RM9"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a family guitar duet and need a stable stand for two instruments, plus two personalized adjustable straps with secure hardware and picks—one suitable for a child and one for an adult performer."}
{"candidate_id": "dev-f03d0867b579638900a74734", "partition": "agent_dev", "positive_items": ["B003GEBGA0", "B0BYXVCSGG", "B091MZPYBQ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small two-singer karaoke rehearsal and need rugged handheld vocal microphones with direct quarter-inch connections, plus foam protection to reduce breath, wind, and spit noise."}
{"candidate_id": "dev-f09927774d7850ab786db3cb", "partition": "agent_dev", "positive_items": ["B07CVTQ2KL", "B0774P2S9J", "B09ZTHNN9L"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing a glossy Fender/Squier-style electric bass and want replacement control knobs, safe cleaner and polish for the finished instrument, plus a way to achieve a vintage, thumpy muted tone."}
{"candidate_id": "dev-f0a8a87e83a4256262ea0f2c", "partition": "agent_dev", "positive_items": ["B01DPJT1VG", "B016PHN84Q", "B097Q9W8MW"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m getting a 7-string electric guitar ready for rehearsals and gigs, and need a protective hard case plus replacement string sets so I can transport it safely and keep it playable."}
{"candidate_id": "dev-f0e940f0e996bef266e1083f", "partition": "agent_dev", "positive_items": ["B0BL8897K3", "B01N0FH0Q8", "B07NY3GK3W", "B09KM9V21Y"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring a guitar neck and need a complete fret replacement setup: accurately check slot depth, prepare fret ends for a bound or unbound fingerboard, install pre-radiused replacement wire, and crown the frets cleanly afterward."}
{"candidate_id": "dev-f133b0ad681439c72a53d0d5", "partition": "agent_dev", "positive_items": ["B00XH2Q9TO", "B09VTHS814", "B07CLRNBY7"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring my Les Paul-style electric guitar and want a cohesive upgrade with vintage-warm humbucker tone, more precise string height and intonation adjustment, and durable black controls for the volume and tone settings."}
{"candidate_id": "dev-f145d7ed96bda96f56e823ff", "partition": "agent_dev", "positive_items": ["B076346CZ9", "B075SVSZJ8", "B07TC4YV9V"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m restoring an Epiphone-style Les Paul and need reliable replacement tuning hardware, a blank three-hole neck cover, and a comfortable adjustable strap that can keep my picks handy."}
{"candidate_id": "dev-f15de033208d1db202028881", "partition": "agent_dev", "positive_items": ["B003FK9C7Y", "B07MDPF4SZ", "B001HNA6ZI"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a small percussion performance featuring a frame drum and frog-like rhythmic sounds, and I need dependable instrument protection plus an organized way to carry and access my playing sticks."}
{"candidate_id": "dev-f1732d59c4a59c5c538bf138", "partition": "agent_dev", "positive_items": ["B06Y1KSVDK", "B01LX96P3A", "B096FZ5TKG"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live music stage and need reliable microphone positioning for an amp or kick drum, a balanced connection to the audio system, and compatible fluid for atmospheric fog during the performance."}
{"candidate_id": "dev-f18d9956bf2df8dbb7806ef8", "partition": "agent_dev", "positive_items": ["B00IFOTSJW", "B015TBAFYK", "B01DPCONFM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for a small live set with acoustic and electric guitar, so I need to refresh the acoustic’s strings, tune both instruments accurately, and connect the electric guitar reliably to my amp or PA."}
{"candidate_id": "dev-f1ab888aed312f3fb0fe50c3", "partition": "agent_dev", "positive_items": ["B09ZL57R95", "B0BMYLLCF6", "B06XNBTLHC"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m recording an acoustic guitar-and-vocal demo at home and need fresh extra-light strings, a dynamic vocal microphone, and a mixer that can handle the inputs and send the performance to my computer."}
{"candidate_id": "dev-f1acfcb1267778fe9e2e8f81", "partition": "agent_dev", "positive_items": ["B00B2HDB4C", "B01DE4DPSC", "B07NDC53ZK", "B01L3JPHIG", "B00JL5I61A", "B0B8LZKBN7"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a practical setup for learning and rehearsing five-string electric bass: I need the instrument, fresh bright strings, reliable tuning, an amp connection, comfortable support, and durable picks."}
{"candidate_id": "dev-f1c7a4aa70bb1fe91578ee5d", "partition": "agent_dev", "positive_items": ["B0C159Y982", "B003SQK1HK", "B0012HMBXE"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m organizing a beginner percussion ensemble and need a compact set of classroom instruments for bright ringing accents, jingling rhythms, and clear wooden click patterns, ideally with simple accessories for safe storage and handling."}
{"candidate_id": "dev-f1c8ab4bf5441fecaa51f39f", "partition": "agent_dev", "positive_items": ["B000EELFNS", "B0BT9R8MMV", "B00TZH5DJW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a portable 61-key keyboard rig for rehearsals and small gigs, so I need stable adjustable support, piano-style sustain, and a protective padded way to carry the keyboard and essential accessories."}
{"candidate_id": "dev-f1dd2627e87f50109eec2de3", "partition": "agent_dev", "positive_items": ["B09CGJ6XK2", "B01H8E58SY", "B00CJ3AGU0", "B00NPAMDQ6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small acoustic livestream with guitar and vocals, and need reliable long balanced connections for the microphones plus a way to split one mic feed between inputs, along with a capo for quick key changes."}
{"candidate_id": "dev-f1f38d8b3bf1585bec08ffa9", "partition": "agent_dev", "positive_items": ["B08CSQNMN5", "B0764G5LLF", "B00Y4TY3JM"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m putting together a portable rehearsal and recording rig with protected rack-mounted audio gear, a reliable balanced connection to the sound system, and handy tools for quickly tuning and adjusting the drum kit."}
{"candidate_id": "dev-f225724fb9390a99e5edb13e", "partition": "agent_dev", "positive_items": ["B00JKML35A", "B06W2NS7RW", "B01D2GAKV2", "B00OJMMUNA", "B00E4SN4VQ", "B00IDSVPR8"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring a Strat-style electric guitar and need materials to rewire its controls quietly, replace the neck mounting plate and pickguard fasteners, and add secure strap attachment points with an adjustable strap for playing."}
{"candidate_id": "dev-f24146bfc35bdf57bdbff7ec", "partition": "agent_dev", "positive_items": ["B002AMUQGY", "B076BWPKRL", "B0002F71QY"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m upgrading a compact percussion setup for Latin-inflected performances and need a small bright auxiliary drum, a short ratcheting boom to position it securely, and a focused, durable 20-inch drumhead for my bass drum."}
{"candidate_id": "dev-f24794c2f37ff8a281ac04f4", "partition": "agent_dev", "positive_items": ["B01JB0SPEC", "B01KINJI2O", "B097Q9W8MW"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing my acoustic and electric guitars for regular gigs and need secure transport and storage for both, plus reliable tuning tools to get them stage-ready quickly."}
{"candidate_id": "dev-f24da45c607f6d0474ff74a0", "partition": "agent_dev", "positive_items": ["B01DF5OYA8", "B000EEL50Q", "B095XCZXNQ", "B00CPLODUU", "B0951C4RGR"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home-and-travel practice kit for my acoustic guitar and ukulele: I need padded transport, quick key changes, gentle cleaning and conditioning, secure wall storage, and soft reusable picks for quiet strumming."}
{"candidate_id": "dev-f25f6a80d7bc7e0b60783f4d", "partition": "agent_dev", "positive_items": ["B074CGMLQ7", "B018FCZKR2", "B00BESRB8Q"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m starting a small acoustic-guitar practice setup for learning songs, with a six-string instrument, a safe place to keep it between sessions, and an easy way to change keys while playing."}
{"candidate_id": "dev-f27aac20d60295ad0d5c7382", "partition": "agent_dev", "positive_items": ["B00RX5HQS4", "B07ZLL3JPB", "B0BK6PMJD2", "B0CB98SMQR"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home studio to record a live singer-songwriter demo and need dedicated close vocal capture, a detailed condenser mic for acoustic or room sound, a rugged mic for guitar amp or percussion, and a dependable 1/4-inch instrument cable."}
{"candidate_id": "dev-f27e2248d6413cf1e7a3c18a", "partition": "agent_dev", "positive_items": ["B071ZQK57R", "B0179C3V7K", "B00RVE9X06"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a small amplified practice and performance station for rotating between violin and ukulele or mandolin, with hands-free microphone placement, accessible instrument storage, and a long cable for connecting my instrument."}
{"candidate_id": "dev-f27fe1e37edb2c9faac82f7a", "partition": "agent_dev", "positive_items": ["B089GLLS7D", "B09ZTK33ZC", "B08T2DMFKD", "B0BK9ZT28X"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up and refreshing my guitar at home, so I need a safe padded work surface and neck support, tools to check and adjust relief, radius, frets, and string action, plus supplies for dry detailing, finish polishing, hardware care, and fretboard conditioning."}
{"candidate_id": "dev-f27ffc27b63ee01ab14c0261", "partition": "agent_dev", "positive_items": ["B01DK40R3M", "B015XDJB9E", "B0B95V41NR"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m assembling a compact electric guitar pedalboard and need an accurate tuner plus low-profile, reliable cables to connect my effects pedals and maintain a clean signal during rehearsals and live gigs."}
{"candidate_id": "dev-f2ada88cd400ccba2bf4a5bb", "partition": "agent_dev", "positive_items": ["B00VRPHV2M", "B01DE4DEGK", "B01H0PACWI"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small laptop-based rehearsal and recording station and need to blend the computer’s stereo audio with other sources, using reliable quarter-inch connections between the mixer and audio gear."}
{"candidate_id": "dev-f2ba31612a00a1c2f5e228d3", "partition": "agent_dev", "positive_items": ["B007XED9CW", "B09NN5M6YM", "B075RBB3KX"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable DJ setup for a small dance party and need compact mixing controls, a clean way to hide PA stand cables, and compatible water-based haze fluid for atmospheric lighting effects."}
{"candidate_id": "dev-f2fda3986f70b45b79b85f61", "partition": "agent_dev", "positive_items": ["B01DN7OAWU", "B09MKNSYCK", "B092LF6RLS", "B00UL3ENW2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a branded street-interview recording kit and need a handheld reporter microphone, a customizable logo marker, and flexible cables to connect it to camera or audio equipment from a comfortable distance."}
{"candidate_id": "dev-f31dbf449826a6c8e0d7c868", "partition": "agent_dev", "positive_items": ["B0BGQG84Y4", "B00HZH4D04", "B01DPCONFM", "B00GR81ST6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable electric-guitar practice setup for learning and playing anywhere, with a beginner-friendly solid-body instrument, hands-free support, dependable connection to an amp, and compact battery-powered amplification with built-in tone options."}
{"candidate_id": "dev-f335ca1f4e4320aec072b312", "partition": "agent_dev", "positive_items": ["B09TQ5K47S", "B09SQ2Y148", "B0B949FD92"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for clarinet rehearsals and small performances and need a dependable way to support my instrument between songs, keep sheet music easy to read, and maintain a clear, responsive tone with suitable replacement reeds."}
{"candidate_id": "dev-f338eff7980fb4b3761dd40b", "partition": "agent_dev", "positive_items": ["B00T6MQMPA", "B01L8C14VW", "B0B2M1GPR7"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m upgrading my electric guitar for faster runs and bends, dependable tuning during aggressive tremolo use, and a coordinated black-and-gold hardware refresh with screw-on control knobs."}
{"candidate_id": "dev-f34aff7cbc54419cb2acc5b3", "partition": "agent_dev", "positive_items": ["B07DWY44X8", "B07N5NKMFM", "B09BF8XDF4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing the string setup for a small folk recording session, needing mellow flatwound bass tone, long-lasting coated acoustic guitar strings, and durable light strings for the mandolin parts."}
{"candidate_id": "dev-f37fe2d489bbc5fc53f6346a", "partition": "agent_dev", "positive_items": ["B0B949FD92", "B07PPHHG34", "B00IFOTSJW"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a compact acoustic guitar practice and performance corner where I can safely display my instrument, tune it accurately, and keep song sheets at a comfortable reading height."}
{"candidate_id": "dev-f38d28fe4625be4786b9136f", "partition": "agent_dev", "positive_items": ["B016QUXTZU", "B0BL8X66ZY", "B07GSJNMBQ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home vocal-recording station and need a versatile condenser mic, reliable 48V power, and a clamp-on screen to reduce harsh vocal pops during takes."}
{"candidate_id": "dev-f3a94e5eff7bcd7197666a26", "partition": "agent_dev", "positive_items": ["B0BCXS7X26", "B07P57ZGLJ", "B001L8PKWS", "B07NWZSBF3", "B00DJB1Z1U"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing a Telecaster for reliable gigging and need replacement string-through ferrules, a fresh 10–48 string setup, updated gold control hardware with black dome knobs, and secure rotating strap attachments."}
{"candidate_id": "dev-f3c986b9128fa7a9f137b544", "partition": "agent_dev", "positive_items": ["B097Q9W8MW", "B09S2VB3KW", "B00EM5UOE6", "B01DPCONFM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a beginner electric-guitar practice setup for home and occasional transport, with a reliable signal connection, comfortable durable picks, an easy-to-use amp for varied sounds, and sturdy protection for the instrument."}
{"candidate_id": "dev-f4171dd43001c759d774a0a9", "partition": "agent_dev", "positive_items": ["B0002D0CAI", "B00N5THBGO", "B0178NTJOY"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a small acoustic rehearsal and need fresh strings for guitar and acoustic bass, plus a stable stand to keep both instruments safely accessible between songs."}
{"candidate_id": "dev-f42d20d9354bc94e1e35a985", "partition": "agent_dev", "positive_items": ["B075Z4JHN2", "B0723C1BDG", "B07CNTZYP5", "B0002D0IUM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable drum setup for regular gigs and need expressive hi-hat and ride sounds, plus protective storage for my cymbals and a wheeled case to transport the rest of my hardware."}
{"candidate_id": "dev-f460e6e48610ed1e001cf03e", "partition": "agent_dev", "positive_items": ["B002G1UT5C", "B08T2N25MR", "B0B8FSCM9L", "B08DM9NFLH", "B074WXM13T", "B08R5GM6YB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home electric-guitar practice station and need everything for playing amplified, practicing fingerstyle, supporting the guitar comfortably, keeping it safely mounted, handling restringing, and building finger strength and calluses between sessions."}
{"candidate_id": "dev-f49cc883d84e3aca75495c28", "partition": "agent_dev", "positive_items": ["B07Y9NF428", "B008EM2ONW", "B09Z5BSB4B"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I'm setting up a retro-themed dance floor for a party and need a DMX lighting setup that can control the atmosphere while slowly rotating a ceiling-mounted mirror ball for classic glittering effects."}
{"candidate_id": "dev-f4e9f8cfe7e9483aca1c8486", "partition": "agent_dev", "positive_items": ["B075CBYCX1", "B00HAHTGEM", "B075TS3934"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a compact guitar rig for rehearsals and small gigs, with versatile modulation sounds, a comfortable strap for playing standing up, and a small pedalboard with protection for transport."}
{"candidate_id": "dev-f50af0db18e6b39fc736f42e", "partition": "agent_dev", "positive_items": ["B07XP6MHQT", "B0C3Q29DML", "B008BPI2OW", "B0047VIXBG"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my acoustic guitar for practice and a small performance: I need to change strings efficiently while safely supporting the neck, add a convenient quick-release strap setup, keep thumb picks handy, and display sheet music at a comfortable angle."}
{"candidate_id": "dev-f54766595fe63572454b77be", "partition": "agent_dev", "positive_items": ["B071DG54MX", "B07PYQM5RY", "B09VSJD5GP"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m working on guitar song demos at home and need a comfortable way to play standing, keep steady time while practicing, and capture several parts with a compact battery-powered recorder."}
{"candidate_id": "dev-f5563c9bd1f1ef7faabef5a2", "partition": "agent_dev", "positive_items": ["B0002ORP8E", "B07K2HX6XN", "B0BKKP8RLG", "B07BKVXYSK"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m putting together a small outdoor live-music event and need a portable PA with dual speakers and mixer, a boom-mounted microphone setup, and a long 1/4-inch cable for connecting an instrument."}
{"candidate_id": "dev-f5993aea6e4d9dbd4d637046", "partition": "agent_dev", "positive_items": ["B079Z72D57", "B0C4XQ496G", "B08DBDD6CM"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a portable presentation for a small panel and need a compact stand for the display, two adjustable floor microphone positions, and a long XLR connection for the audio setup."}
{"candidate_id": "dev-f607d9f8f63705da99e185b5", "partition": "agent_dev", "positive_items": ["B079C7K7TD", "B0B3NJ1TDB", "B07GS5R4TX"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live rehearsal rig and need reliable ways to connect a microphone and guitar over different cable lengths, while checking continuity and troubleshooting connections before the session."}
{"candidate_id": "dev-f60fd914c612bed7aae63879", "partition": "agent_dev", "positive_items": ["B07BHJH2Y8", "B09M7P8SBH", "B07R3S93K8"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my electric guitar and baritone ukulele, while organizing my guitars on the wall with protective hangers."}
{"candidate_id": "dev-f623c5f112a6350d2137e327", "partition": "agent_dev", "positive_items": ["B00646MZHK", "B01DE4DPSC", "B08BW2TBD7", "B074WXM13T"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a portable guitar setup for practicing and small gigs, with reliable sound connection, easy tuning, comfortable hands-free playing, and a secure way to set the instrument down between songs."}
{"candidate_id": "dev-f64e9166d3e815971ecd9a47", "partition": "agent_dev", "positive_items": ["B07NFMHLM6", "B081382HN4", "B00TH3Y96M"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m assembling a tenor saxophone setup for regular rehearsals and gigs, with a standard mouthpiece, consistent synthetic reeds, and a humidity-managed case to keep my reeds protected."}
{"candidate_id": "dev-f6bcf62fec169eec30fd9510", "partition": "agent_dev", "positive_items": ["B0107BCV1M", "B0BL8897K3", "B0B2M1GPR7"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m building and setting up an electric guitar for reliable tuning and a properly finished fretboard, and I need the guitar, replacement tuning machines, and a fret-crowning tool for the project."}
{"candidate_id": "dev-f6c4bb59117fb33f8c15d78e", "partition": "agent_dev", "positive_items": ["B00ASWGGBW", "B09V91H5XM", "B01BVPEUJY", "B07C38K7ZH", "B07GFH8NTB", "B0010XSZ3A", "B07V46KRD8"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a small live acoustic music setup and need to restring my acoustic and seven-string electric guitars, keep the acoustic protected between sessions, add hand percussion, and make the vocal microphone easy to mount while comfortably securing my guitar onstage."}
{"candidate_id": "dev-f6c9d349d1b2497adb4df3bb", "partition": "agent_dev", "positive_items": ["B097FMTZCP", "B00BQYOGKY", "B004SX1BCG"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a compact guitar practice and maintenance station at home, with reliable tempo practice, a secure place to rest the guitar on a desk, and a safe way to tighten a loose output jack."}
{"candidate_id": "dev-f716e70476568a3dc582b89c", "partition": "agent_dev", "positive_items": ["B0B8F6LD9F", "B00EBY8VZC", "B06ZZ375CD"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring a Fender Stratocaster and want to rewire the controls with vintage-style cloth-covered solderable wire, upgrade the volume and tone circuitry with correctly sized pots and capacitor, and finish it with matching aged knobs."}
{"candidate_id": "dev-f74831a503cdaaf54fdf60ae", "partition": "agent_dev", "positive_items": ["B08WB8CKB1", "B07ND1S862", "B00G6H0S1W", "B00Y4TY3JM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing my drum kit and need tools for tuning, a small splash cymbal for bright accents, and replacement snare hardware and wires to restore reliable snare response."}
{"candidate_id": "dev-f7515898ac37c030e66d02b9", "partition": "agent_dev", "positive_items": ["B00CK2DM7Y", "B07BFVF7LZ", "B0BG95DG2H", "B09YDBKT7M"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my electric guitar ready for quiet home practice and better playability, so I need a way to check the string radius, clean and refresh the strings and fingerboard, and keep plenty of reliable picks on hand."}
{"candidate_id": "dev-f794e0cad65d666bbdbbab8d", "partition": "agent_dev", "positive_items": ["B092LF6RLS", "B08NFD8DTM", "B016YKWKL6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a simple home studio to record vocals and acoustic guitar, and need a quality condenser microphone, a dependable long XLR connection, and an easy USB interface for capturing polished tracks."}
{"candidate_id": "dev-f7ae127614ff5fd23b140cce", "partition": "agent_dev", "positive_items": ["B0B89ZSYS7", "B06X9KG3HW", "B09RN7GR8F"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a home podcast and voice-recording station and need a professional dynamic vocal mic, balanced XLR connections, and a USB interface with enough inputs and outputs for future instruments."}
{"candidate_id": "dev-f7d585d9f19fb31178cc2cf3", "partition": "agent_dev", "positive_items": ["B08DBDD6CM", "B00Y3NG5HM", "B0036ECH1M"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a small live music and vocal performance and need a mixer for multiple inputs, reliable XLR and audio connections, plus adjustable stands to position the PA speakers."}
{"candidate_id": "dev-f7f4d38089d920b76dca8165", "partition": "agent_dev", "positive_items": ["B07228YGKK", "B005BSOW32", "B0002E513U"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small live karaoke and performance sound system and need to accommodate several wireless singers, shape the stereo mix, suppress feedback, and add polished reverb and other effects for the PA."}
{"candidate_id": "dev-f7f7ec981cea93f862d46732", "partition": "agent_dev", "positive_items": ["B08BW2TBD7", "B07226MCY6", "B09WVFZPLS"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up for casual guitar practice and small jam sessions and need a stable place to park my instrument, comfortable hands-free support, and a reliable pick for playing."}
{"candidate_id": "dev-f8079f8c8f3793c3725713c6", "partition": "agent_dev", "positive_items": ["B07CQMZVYL", "B0B6H7J2SN", "B097CN8G2N"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a compact home studio where I can record microphones and instruments, create parts with a computer-connected keyboard, and position my studio monitors securely for accurate mixing."}
{"candidate_id": "dev-f83b77c784be30f18aa7cd06", "partition": "agent_dev", "positive_items": ["B07PZCVFXG", "B00G964BUY", "B00EB123MM", "B0BXSYL7S4", "B0B29N7VC8"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing a Tele-style electric guitar and need better intonation and string guidance, refreshed chrome control and output hardware, and a properly fitted hard case for safe storage and transport."}
{"candidate_id": "dev-f83c593053c106e285dd8e56", "partition": "agent_dev", "positive_items": ["B002SW3802", "B0B58LVCTX", "B0026RNEM6"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a beginner children’s rhythm circle and need a mounted accent instrument plus easy handheld shakers and maracas for group practice, including glow-in-the-dark sound makers."}
{"candidate_id": "dev-f84f3b89a1cb3c2780532ed3", "partition": "agent_dev", "positive_items": ["B00CIO6BEA", "B01K1EJQ9U", "B01DE4DTAG", "B08BW2TBD7"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a portable guitar practice setup with secure instrument storage, picks always within reach, and enough cable length to connect comfortably while playing."}
{"candidate_id": "dev-f85b55c52cc8c34913ff3ad8", "partition": "agent_dev", "positive_items": ["B06X9KG3HW", "B016QUXTZU", "B00LOAASPC", "B07CYRYQ8G"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home podcast recording station and need reliable balanced mic connections, a stable adjustable desktop position, plosive reduction, and enough interface inputs for recording several voices together."}
{"candidate_id": "dev-f8aabb836d585823c5d5c012", "partition": "agent_dev", "positive_items": ["B07FTVKZB3", "B09QZJ57YW", "B00RJHGOE8"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m starting acoustic guitar lessons and need a comfortable adjustable way to play standing, dependable picks for practice, and protective backpack-style storage for the instrument and small accessories."}
{"candidate_id": "dev-f8fff69974dff7f8e4eb923f", "partition": "agent_dev", "positive_items": ["B0BKRBZ29M", "B0BSCFTV2G", "B01DE4DTAG"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing for a guitar rehearsal and need a comfortable way to keep the instrument supported, make quick key changes, and connect reliably to my amplifier across the stage."}
{"candidate_id": "dev-f958812ebf82239c698ad1e9", "partition": "agent_dev", "positive_items": ["B0C5PRQ9K6", "B0C9NGP88D", "B0BSCFTV2G"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up for a guitar performance and need an easy way to change keys, keep my instrument precisely in tune, and connect the amp reliably onstage."}
{"candidate_id": "dev-f967e845ff9aaf730ef11d24", "partition": "agent_dev", "positive_items": ["B00NPAMDQ6", "B06XDBGL88", "B00M6SI0X8", "B001DTNKNG", "B0BZ5JK2GC", "B09T7P2RNC"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m recording a small acoustic and electric string ensemble at home and need fresh strings for both guitars, bow rosin, a versatile condenser microphone, long balanced leads, and compact studio connections."}
{"candidate_id": "dev-f96a8d3b4bfbabbe4f388a78", "partition": "agent_dev", "positive_items": ["B00ICR9G2Q", "B07C91JT14", "B0C39H86Q1", "B0C5PRQ9K6", "B01MSM3JFO"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m organizing a small school concert with singers, instruments, and a Bb clarinet, and need reliable sound connections to amplification, a way to carry the microphone gear, and a suitable clarinet mouthpiece for the performer."}
{"candidate_id": "dev-f9721cec133839d1a6ff65ff", "partition": "agent_dev", "positive_items": ["B0BHSG5C3G", "B076YPR9PH", "B08JMQR2JK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable mini-acoustic-guitar setup for rehearsals and small performances, with easy backpack transport, secure padded places to park several instruments, and quick tuning before playing."}
{"candidate_id": "dev-f977d2a66628a5f31bc1d228", "partition": "agent_dev", "positive_items": ["B015JTEBN8", "B08ZFQ8GLV", "B01H0PACWI"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a simple home recording setup for vocals and guitar, with a sensitive studio microphone, adjustable positioning, and a way to connect my laptop’s stereo audio to quarter-inch inputs."}
{"candidate_id": "dev-f9be5ff764d3abe852eb6a2f", "partition": "agent_dev", "positive_items": ["B002NM0JA4", "B00OSHIHDI", "B00PZGTVAE"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing my bass and building a compact effects setup, so I need hardware for smoother stringing and stable tension, a blank nut for fitting the neck, and short low-profile cables to connect the pedals."}
{"candidate_id": "dev-f9d3cdbc68640e03e66ccbd5", "partition": "agent_dev", "positive_items": ["B078X3SSY7", "B0753DV9TH", "B001LXMXU0"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable stage-lighting setup for small events and need to safely secure fixtures overhead, connect them reliably to a DMX controller, and transport several lights and their cables without damage."}
{"candidate_id": "dev-fa1c7a083a0994e210960528", "partition": "agent_dev", "positive_items": ["B0064RTS0G", "B00E4DEZGO", "B08VF4K987", "B000UJHHLQ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my Telecaster for slide playing and live practice, with reliable tuning, fresh bright strings, a durable new look, and a large glass slide for warm, thick tones."}
{"candidate_id": "dev-fa667bef74ed255f7c2a4743", "partition": "agent_dev", "positive_items": ["B07BSSS8VZ", "B093YML8MZ", "B001LNO9JI", "B09RJZSQML"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a portable guitar performance rig and need light, durable picks for acoustic strumming, a long 5-pin MIDI connection for floor-based control, and padded protection for transporting the programmable foot controller."}
{"candidate_id": "dev-fa6ddb15b41dfe0ee5a37e6e", "partition": "agent_dev", "positive_items": ["B01K1EJQ9U", "B08R5GM6YB", "B0BSGM6CQ9"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restringing my electric guitar with a heavier gauge and want one compact helper for the job, plus convenient nearby storage for standard picks."}
{"candidate_id": "dev-fa9aaa18a5f75b9257a8c12e", "partition": "agent_dev", "positive_items": ["B01DPJSI0G", "B0B28TXFWZ", "B018FCZKR2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m starting electric guitar practice at home and need a solid-body instrument, a stable stand with protective padding for storage, and a reliable cable to connect it to my amp."}
{"candidate_id": "dev-fab03b0628294362f519bb1f", "partition": "agent_dev", "positive_items": ["B0BSGM6CQ9", "B0BKZ5F8BS", "B07V46KRD8", "B01H7JKRMW", "B0002E56IA", "B00OSHRM48", "B00170GDPS"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small home studio to record a warm, polished multi-guitar demo, and need fresh strings for bass, seven-string and heavier-gauge electric, plus acoustic guitar, a pedalboard for effects, and a replacement vocal mic grille with a tube preamp for clean recording."}
{"candidate_id": "dev-fae5e4e301322e45b60f43bc", "partition": "agent_dev", "positive_items": ["B00CIO6BEA", "B00LTDOIXW", "B00IFOTSJW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a tidy guitar practice corner and need durable heavy-gauge picks, an accurate clip-on tuner for rehearsing or playing live, and secure wall-mounted storage for my instruments."}
{"candidate_id": "dev-fb18b68d7c8d684b5dce6b76", "partition": "agent_dev", "positive_items": ["B0BXZFS2QH", "B098KXQJVY", "B00JL5I57U"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing my 7-string electric guitar for regular practice and small performances, and need long-lasting strings, durable grippy picks, plus a versatile portable amp for shaping and projecting my tone."}
{"candidate_id": "dev-fb257fcc62607d4bd90dca6c", "partition": "agent_dev", "positive_items": ["B003THDD2S", "B0B58LVCTX", "B0002F79E8", "B016QUXTZU"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a child-friendly rhythm and singing recording session, with easy handheld percussion, a tambourine that can attach to a stand for hands-free playing, and a pop filter for clearer vocals."}
{"candidate_id": "dev-fb3454080e46167ac19fada8", "partition": "agent_dev", "positive_items": ["B08VHZ4FFW", "B096FZ5TKG", "B091MZPYBQ", "B0B8Z59D2M", "B0B949FD92", "B07FZBF5HY", "B07N5J3GTB"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a portable vocal performance and need a reliable handheld microphone setup with stand compatibility, cable connection to audio equipment, wind and spit protection, plus a folding, illuminated music stand for reading lyrics while performing."}
{"candidate_id": "dev-fb4beb4b146042873c97aa6d", "partition": "agent_dev", "positive_items": ["B0179A4ILK", "B000K67U52", "B005WFTVH6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my classical guitar and vocal setup ready for a small live performance: I need fresh, expressive strings, a secure strap solution, and a way to tame the shared microphone’s input level."}
{"candidate_id": "dev-fb84350289b2f608a368c675", "partition": "agent_dev", "positive_items": ["B00A2GZFZC", "B00646MZHK", "B00UV7Q3HG"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m recording a gritty blues session with drums and harmonica, so I need close-miking for the kick, snare, and toms, dependable cables and mounts, plus a clip-on tuner to keep the instruments in tune."}
{"candidate_id": "dev-fb875e18c5bbebf293738a38", "partition": "agent_dev", "positive_items": ["B09V54V8SN", "B0925F8LPD", "B0BRSFKQD4"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a versatile drum kit for recording and practice, with expressive hi-hat articulation, a customizable double-kick setup, and an easy way to control unwanted ring and overtones."}
{"candidate_id": "dev-fb9ea191fe861828f1940251", "partition": "agent_dev", "positive_items": ["B07N5G6Y5G", "B0043NQVJY", "B003WUK0XW"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m upgrading my Floyd Rose electric guitar for studio use, aiming to reduce tremolo noise, improve tuning at the headstock, and replace a worn audio-taper control with a compatible 500K split-shaft pot."}
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{"candidate_id": "dev-fbada2923b7a499bdc8d4ae5", "partition": "agent_dev", "positive_items": ["B07BQVJY7W", "B0BCXMFM46", "B0025PM6DM", "B0009EQMZE", "B00HU25WSQ"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my Stratocaster’s appearance and hardware, replacing the guard and related fittings, adding the needed pickup and switch fasteners, and preparing for both regular picking and warm-toned slide playing."}
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{"candidate_id": "dev-fbd8b30472e02916bd7341d2", "partition": "agent_dev", "positive_items": ["B00L9R9YVO", "B00Y9AD4HS", "B0002GYX5K"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a compact home guitar practice and recording corner, needing replacement .010 plain strings, a long XLR microphone connection, and secure wall storage for two instruments."}
{"candidate_id": "dev-fbfc49e386b6fedc336d06ba", "partition": "agent_dev", "positive_items": ["B0BT9R8MMV", "B07MZYNZ1C", "B095JX9GZY"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a comfortable home practice station for my electronic keyboard and need stable adjustable support, a padded height-adjustable seat, and hands-free sustain control."}
{"candidate_id": "dev-fc018eb1f48992e6c961ae4a", "partition": "agent_dev", "positive_items": ["B017DNYI0E", "B0C3PWFLWL", "B09J69QB6Q"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m setting up a portable keyboard production rig for rehearsals and small studio sessions, with an adjustable stable playing surface, elevated monitors for accurate mixing, and padded protection for transporting the keyboard safely."}
{"candidate_id": "dev-fc1429308f4cda0700551b2f", "partition": "agent_dev", "positive_items": ["B0189X4BYK", "B01K1EJQ9U", "B00H4PEMM6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a simple setup for practicing and performing classical-style songs, with an acoustic-electric guitar, a convenient way to keep picks within reach, and a capo for changing keys quickly."}
{"candidate_id": "dev-fc15545fc5fa96460eac8545", "partition": "agent_dev", "positive_items": ["B07XGB34DF", "B0798JKW8W", "B000EEJH9C"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m upgrading an electric bass with replacement pickup electronics, fresh coated strings, and a metal output-jack plate for a complete, tidy, playable rewiring project."}
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{"candidate_id": "dev-fc2f18ef73ab6808ea2f3f10", "partition": "agent_dev", "positive_items": ["B00IFOTSJW", "B0002GXPRM", "B00CGFRJ2Y"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing for a small guitar-and-vocal performance and need a simple setup for securely mounting the microphone, keeping my guitar in tune, and playing comfortably with dependable picks."}
{"candidate_id": "dev-fc2fc20ab44befe999b0478d", "partition": "agent_dev", "positive_items": ["B003ZK2B9A", "B07N2TTQ9K", "B0B3VPXH4Q"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my drum kit for more comfortable playing and a cleaner studio setup, with extended sticks, improved cymbal suspension and isolation, and a way to cover holes left after removing the bass drum bracket."}
{"candidate_id": "dev-fc3cb3978b2ff30cc8d36e3c", "partition": "agent_dev", "positive_items": ["B0BTC9YJ2W", "B000NGVQKO", "B0BPKH7FJ2"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for an acoustic bluegrass-style performance and need to refresh the strings on my 5-string banjo and 12-string guitar, plus improve controlled fingerstyle picking across both instruments."}
{"candidate_id": "dev-fc6dd31cac86bea926d92cbd", "partition": "agent_dev", "positive_items": ["B018FCZKR2", "B0BHSG5C3G", "B01DPCONFM"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a simple electric guitar rehearsal setup and need an easy way to tune accurately, connect the instrument to my gear, and keep it safely supported between practice sessions."}
{"candidate_id": "dev-fcadfb1aa8a0b4fc69bb8f4a", "partition": "agent_dev", "positive_items": ["B01IZX531O", "B073XXLVWT", "B004OK1G64", "B004J27QXY"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m building a guitar effects rig for live looping and rehearsing, with a warm overdriven tone, dependable isolated power for multiple pedals, and a sturdy board to organize and transport everything."}
{"candidate_id": "dev-fcaeccbafe7f199c3382e4aa", "partition": "agent_dev", "positive_items": ["B0C9NGP88D", "B00HXE4KAC", "B0BCL4K9GF"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m starting mandolin practice and need a quality instrument, a readable clip-on tuner for quick setup, and an adjustable metronome to keep steady rhythms during lessons and rehearsals."}
{"candidate_id": "dev-fcb55188b89f88275411927c", "partition": "agent_dev", "positive_items": ["B00INCGKSI", "B00N4ZHQ14", "B0002D0C1C", "B08JMQR2JK"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing for a small acoustic guitar rehearsal and need fresh strings, simple string and fingerboard care, quick key changes, and secure places to hold multiple instruments between songs."}
{"candidate_id": "dev-fcc9a7ef5a346afc2caa7910", "partition": "agent_dev", "positive_items": ["B09Q247NC8", "B079P45BVX", "B00NPAMDQ6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m preparing a portable DJ setup for gigs and need protective fitted covers for my performance gear plus long, reliable XLR connections for microphones or stage equipment."}
{"candidate_id": "dev-fcde72df4751f0ca981e3e29", "partition": "agent_dev", "positive_items": ["B07J5FVQNT", "B0BHG58G2F", "B0BG95DG2H"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my 5-string bass for rehearsals and gigs and need fresh bright strings, something to clean and restore its surface, and a reliable supply of comfortable heavy picks for playing."}
{"candidate_id": "dev-fcfd6b346d483e2930b4a62c", "partition": "agent_dev", "positive_items": ["B00HTWQWWM", "B07N5NMWXK", "B005OZE9SA"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I want to record a home demo exploring contrasting slide-guitar tones, with smooth and metallic options for different parts and a simple USB interface for capturing clean takes."}
{"candidate_id": "dev-fd2ce102466dcecda28f89cc", "partition": "agent_dev", "positive_items": ["B0BCW884JL", "B07MPCQMZS", "B0B7C2NM84"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m getting my guitar-and-bass setup ready for a small live show: I need a secure replacement case for my Les Paul-style guitar, fresh strings for my five-string bass, and sturdy hardware so my instruments can be played comfortably with straps."}
{"candidate_id": "dev-fd475b20307a058f054891eb", "partition": "agent_dev", "positive_items": ["B000SAGSRQ", "B06VX6T3RG", "B001D2TPZU"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a blues harmonica performance in C and need a suitable harmonica, a hand-friendly microphone that connects to my amplifier, and a secure way to keep my drink off the floor and away from my gear."}
{"candidate_id": "dev-fd6655e41b5b2dee62b796ee", "partition": "agent_dev", "positive_items": ["B078KTV8L4", "B0002D0CAI", "B0B8M5FJ9W", "B0C6H9T5T6", "B08JMQR2JK"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a home acoustic-guitar recording and livestream corner: I need fresh strings, a secure strap, a stable place to park the guitar, humidity upkeep, and a plug-and-play mic for vocals and instrument."}
{"candidate_id": "dev-fd6d4a4114b8f86d237f26a0", "partition": "agent_dev", "positive_items": ["B0149GAEVA", "B00GDY6KL0", "B06W2NS7RW"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refurbishing an import-style electric guitar and want a cohesive hardware upgrade that improves control feel, restores the cable connection, and lets me attach a strap securely without bulky hardware."}
{"candidate_id": "dev-fd7627fb2e00067d3419f2e3", "partition": "agent_dev", "positive_items": ["B07BLM53Z1", "B00X7YJUGG", "B005YYO2LA"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I'm setting up a small live performance and need long cables for microphones and instruments, plus padded protection to transport my Mackie Thump speaker safely."}
{"candidate_id": "dev-fd9b494e7d0ef329548e4ef5", "partition": "agent_dev", "positive_items": ["B00HY64WLQ", "B08MZ6YT6L", "B08T2N25MR"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m restoring my Les Paul-style electric guitar and need matching black control hardware, a replacement rhythm/treble switch marker, plus a compact practice setup with cable and picks for testing the repaired instrument."}
{"candidate_id": "dev-fdba5b9e222f1eacff1e4687", "partition": "agent_dev", "positive_items": ["B0BG95DG2H", "B00IFOTSJW", "B074V129H6"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together an electric guitar setup for practicing and performing lead parts, with reliable clip-on tuning, expressive wah and driven tones, and plenty of comfortable picks for rehearsals and gigs."}
{"candidate_id": "dev-fdcbfd3e4da34559f4d94b14", "partition": "agent_dev", "positive_items": ["B087RSX4YM", "B0B89ZSYS7", "B07H5HM6F6"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a home podcast and voice-recording station and need a smooth dynamic microphone, extra clean gain for a quieter signal, closed-back headphones for monitoring, and reliable long XLR connections."}
{"candidate_id": "dev-fdda112fd92dabffddfe624d", "partition": "agent_dev", "positive_items": ["B09397DT4Y", "B076GHR7DN", "B0BKZ3GCGR"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m setting up a beginner-friendly full-size acoustic guitar for someone learning to play, with essential starter accessories, comfortable picks, and decorative self-adhesive protection for the guitar’s body."}
{"candidate_id": "dev-fdea70f271a897c90c9679c0", "partition": "agent_dev", "positive_items": ["B0928KFR97", "B00DT59450", "B0716QP8SR"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m building a compact electric-guitar pedal setup for recording gritty, amp-like overdrive, with a way to tame hiss and shape the frequencies afterward so lead tones stay clear and feedback is manageable."}
{"candidate_id": "dev-fe1e9ce1bd5aaea241196097", "partition": "agent_dev", "positive_items": ["B008I4ZEME", "B0052ND7H8", "B0002GW668"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m upgrading my Nashville Tele-style guitar with a replacement pickguard, expanded seven-way tone control, and onboard electronics that let me blend its piezo bridge and magnetic pickup signals."}
{"candidate_id": "dev-fe510c3cf68e6f7b18b78e96", "partition": "agent_dev", "positive_items": ["B073RTT48C", "B00LYFFW9O", "B00NS76420"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m upgrading my electric guitar for more reliable tuning and a vintage-style electronics refresh, including new headstock tuners, rewiring the controls, and adding a three-way pickup selector."}
{"candidate_id": "dev-feb9866525e94a697dba069b", "partition": "agent_dev", "positive_items": ["B000VTBHSE", "B0002GL38K", "B0002F4UD6", "B09LYNWVPC", "B0C159Y982"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a Latin percussion setup for salsa rehearsals and live performances, with deep and medium handbell tones, a dedicated beater, lower-pitched hardwood claves, and clear, durable maracas."}
{"candidate_id": "dev-fecf2f19437d705bd9506357", "partition": "agent_dev", "positive_items": ["B003KR2MTC", "B003KR0Y88", "B001KF1F12"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my guitar practice setup and repairing the amp’s front-panel lighting, so I need a stable padded guitar stand along with compatible replacement indicator bulbs and a blue amp jewel."}
{"candidate_id": "dev-fee119c5240d45bfab6520e2", "partition": "agent_dev", "positive_items": ["B072C42CQ5", "B014ZYPT34", "B0BKR2ZM9X"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m upgrading my Strat-style electric guitar for richer sustain and harmonics, a fresh SSS appearance, and more stable tuning with locking machine heads. Please help me find compatible parts."}
{"candidate_id": "dev-ff05ca9d0a6e57ed454abfe8", "partition": "agent_dev", "positive_items": ["B00GFG19G2", "B0149GFCX0", "B0BVHFTP4P", "B07C484BHP"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small acoustic ensemble recording and live-monitoring session, needing a compact stage-to-interface connection, stereo overhead coverage for drums and strings, a focused large-diaphragm mic, and a versatile tube condenser for lead vocals or room ambience."}
{"candidate_id": "dev-ff11d0f0d47ea8c45b9f884d", "partition": "agent_dev", "positive_items": ["B07P72FCR5", "B000FCPIQY", "B00067G66Y"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m putting together a beginner-friendly classroom music activity where kids can explore buzzing tones, sliding pitches, and mouth-shaped rhythms using simple, durable instruments."}
{"candidate_id": "dev-ff270f862b6b890d39dac29b", "partition": "agent_dev", "positive_items": ["B0C5CT47DX", "B07Q28P6JM", "B09PBL98Q4", "B014ZYPT34"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m refreshing my Strat rig with a compatible replacement pickguard, vintage overdrive tones, flexible A/B signal routing, and compact pedalboard connections to keep the setup tidy."}
{"candidate_id": "dev-ffa77bd991eb6b5dd4006714", "partition": "agent_dev", "positive_items": ["B07CNZJRR1", "B07C3NTDTQ", "B0BYYGJ2CF"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a comfortable home piano practice space and need an 88-key weighted digital piano with power and sustain support, a matching furniture-style stand, and a cushioned bench with room for storing sheet music."}
{"candidate_id": "dev-ffc1c4d3d5fc6f5d39e4bd0a", "partition": "agent_dev", "positive_items": ["B00O5ELFU6", "B09B42MLXS", "B0069V4AGY"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m setting up a small community presentation and need hands-free wireless speech, a compact powered PA mixer for flexible audio inputs, and reliable balanced connections throughout the sound system."}
{"candidate_id": "dev-ffd7907ddf5d352380fdd212", "partition": "agent_dev", "positive_items": ["B08WB7T4P7", "B09MWFZYLQ", "B0753PSL2D"], "prompt_optimizer_exposure": "unseen_in_prompt_optimizer", "query": "I’m rebuilding my 20-inch bass drum and need a warm, versatile coated batter head, a matching natural maple hoop, and a ported front head for the resonant side."}
{"candidate_id": "dev-ffe7b242baf9e42ecec7c339", "partition": "agent_dev", "positive_items": ["B0C6H9T5T6", "B016QUXTZU", "B00DQJU0U2"], "prompt_optimizer_exposure": "prompt_optimizer_tune", "query": "I’m building an immersive gaming and streaming setup with clear, plosive-free commentary and low-frequency vibration through my chair for more physical in-game feedback."}
{"candidate_id": "dev-ffe85cca0b2348ed93c1dca4", "partition": "agent_dev", "positive_items": ["B08BW2TBD7", "B086QMZG22", "B0BRQ3FT7P"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m putting together a portable rock guitar setup for rehearsals and small gigs, with a way to create heavy distorted tones, play comfortably for long sessions, and safely store my guitar between sets."}
{"candidate_id": "dev-fffcfabe7906065bb05d988b", "partition": "agent_dev", "positive_items": ["B09BLF74DJ", "B09DC1L84K", "B09989XQD7"], "prompt_optimizer_exposure": "prompt_optimizer_holdout", "query": "I’m preparing my electric, five-string bass, and classical guitars for a recording session and need suitable nickel and nylon string sets for each instrument."}