{
  "dataset_root": "/data/home/raychai/hf_datasets/maze2d_easy_native256_stopreq_stepmsg_fixedstart_ordered_20260606_stepmsg_fixedstart_v2",
  "dataset_tag": "20260606_stepmsg_fixedstart_v2",
  "difficulty": "easy",
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    "100000 train and 100 test manifest rows",
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    "fixed start [1,1] and centered target",
    "hard action length <= 40",
    "deterministic CoT ABCD candidate order",
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  "manifest_validation_summary": "/data/home/raychai/hf_datasets/maze2d_easy_native256_stopreq_stepmsg_fixedstart_ordered_20260606_stepmsg_fixedstart_v2/metadata/manifest_validation_summary.json",
  "ok": true,
  "raw_visible_hash_audit": "/data/home/raychai/hf_datasets/maze2d_easy_native256_stopreq_stepmsg_fixedstart_ordered_20260606_stepmsg_fixedstart_v2/metadata/raw_visible_hash_audit.json",
  "raw_visible_hash_checks": [
    "replayed raw accepted surplus generation for train and test",
    "independently hashed only env_id,width,height,target_in_center,maze_map,agent_location,target_location",
    "checked current row hash equals independent visible hash",
    "counted raw accepted visible-hash duplicates before retain"
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      "unique_visible_hashes": 120
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  "sampled_media_checks": [
    "1000 train rows and full 100 test rows per plain/COT root",
    "prompt contract for step 0 and step > 0",
    "JPEG decode as 256x256 RGB",
    "plain image_prev == image",
    "plain image_next replay match",
    "CoT branch image replay match"
  ],
  "sampled_validation_summary": "/data/home/raychai/hf_datasets/maze2d_easy_native256_stopreq_stepmsg_fixedstart_ordered_20260606_stepmsg_fixedstart_v2/metadata/sampled_validation_summary.json",
  "validation_mode": "full_manifest_hash_order_start_length_dedup_overlap_plus_sampled_media_replay",
  "variant": "plain"
}