{
    "meta_info": {
        "case_id": "SEED-V-03.cnt",
        "bench_subset": "NeuroBench-Core",
        "difficult": 1.5,
        "original_dataset": "SEED-V"
    },
    "agent_input": {
        "data_path": "data/core/SEED-V-03.cnt",
        "instruction": "Please select only the real EEG channels from the raw signal, apply a 50Hz FIR notch filter, plot the power spectral density using the full available signal, and save the PSD figure to the file_check directory with the filename SEED-V_03_case17_psd.png."
    },
    "eval_config": {
        "parser_prompt": "### ROLE\nYou are a precise JSON Extraction Engine for neurophysiological data. Your sole task is to convert natural language reports into structured JSON data.\n\n### TASK\nExtract the saved image file path from the agent report.\n\n### STRICT CONSTRAINTS (MANDATORY)\n1. Output ONLY a valid JSON object.\n2. DO NOT include Markdown code blocks.\n3. DO NOT include any conversational text or explanations.\n4. The JSON key must be EXACTLY \"file_path\".\n5. The value must be a string file path or null.\n6. If the report does not clearly provide a saved image file path, return null.\n\n### OUTPUT TEMPLATE\n{\"file_path\": \"file_check/example_psd.png\"}",
        "metrics": [
            {
                "metric_id": "save_psd_png_status",
                "type": "file_status_check",
                "target_key": "file_path",
                "weight": 100,
                "params": {
                    "match_mode": "image_file_match",
                    "validator_config": {
                        "file_name": {
                            "value": "SEED-V_03_case17_psd.png"
                        },
                        "vlm_prompt": {
                            "value": "You are judging whether a saved image correctly satisfies an EEG plotting task. Check the image only. The task requirement is: select real EEG channels, apply a 50Hz notch filter, and plot the power spectral density (PSD) over the full available signal. Return pass only if the image is clearly an EEG PSD plot and visually consistent with a 50Hz notch-filtered spectrum. Specifically verify: (1) this is a PSD/frequency-domain plot rather than a waveform, topomap, or unrelated figure; (2) the plot shows PSD-style curves or a standard PSD rendering for EEG channels; (3) the frequency axis reaches at least the region around 50Hz; (4) around 50Hz there is a visible attenuation notch, dip, or discontinuity consistent with 50Hz notch filtering, not a smooth uninterrupted peak; (5) the image is not blank, corrupted, pure black, pure white, or only an empty coordinate frame. If any of these checks fail or cannot be confidently confirmed, return fail. Output only a valid JSON object. The JSON must contain exactly one key named status. The value of status must be either True or False. Do not output Markdown, explanations, additional fields, or any natural language.",
                            "weight": 100
                        }
                    }
                }
            }
        ]
    }
}