{
  "schema": "MAKNOW_LAB_CHECK_RULES_v1",
  "lesson_id": "MKN-010",
  "lab_id": "MKN-010-LAB1",
  "required_fields": [
    "utterance_id",
    "text_version",
    "token_id",
    "char_start",
    "char_length",
    "audio_asset_ref",
    "timing_source",
    "start_ms",
    "end_ms",
    "elapsed_ms",
    "confidence",
    "cue_id",
    "drift_ms",
    "sync_state",
    "fallback_mode",
    "review_owner"
  ],
  "local_rules": {
    "confidence_min": 0.85,
    "max_word_drift_ms": 120
  },
  "rules_version": "v1"
}