{
  "validation": {
    "raw_count": 256,
    "effective_count": 254,
    "excluded": [
      {
        "id": "0092_00927567",
        "reasons": [
          "gt_contains_two_outline_views_only",
          "third_outline_view_missing",
          "orphan_native_dimension",
          "sidecar_reference_view_count_mismatch",
          "prompt_negative_extrusion_depth"
        ]
      },
      {
        "id": "0093_00937357",
        "reasons": [
          "gt_contains_two_outline_views_only",
          "third_outline_view_missing",
          "orphan_native_dimension",
          "sidecar_reference_view_count_mismatch"
        ]
      }
    ]
  },
  "test": {
    "raw_count": 1048,
    "effective_count": 1045,
    "excluded_ids": [
      "0042_00422612",
      "0051_00511376",
      "0086_00862775"
    ],
    "reason": "view_split_not_found_or_target_semantic_partition_ambiguous"
  },
  "policy": "Preserve all original records and assets. Exclusions are evaluation masks, not deleted samples. Model failures are not dataset exclusions."
}