{
  "schema_version": 1,
  "review_type": "ai_assisted_visual_review",
  "human": false,
  "reviewed_tile_count": 48,
  "coverage": "all canonical V73 training tiles",
  "decision": "suitable_for_non_promotable_experiment_only",
  "observations": [
    "GRB bounding boxes generally cover visible building roofs across all selected contexts.",
    "Rotated and complex footprints produce intentionally loose axis-aligned detection boxes.",
    "Sparse and empty field tiles are present; background_candidate does not imply pure empty.",
    "The first export contained 60 overlapping edge-cover tiles; all were removed before training.",
    "This review does not satisfy the independent human release gate."
  ],
  "contact_sheets": [
    "contact_sheet_001.png",
    "contact_sheet_002.png"
  ]
}