{
  "evaluation_scope": "deployed_roi_screening",
  "record_count": 432,
  "validation_size": 44,
  "metrics": {
    "accuracy": 0.8864,
    "precision": 0.8462,
    "recall": 0.7857,
    "f1": 0.8148,
    "split_strategy": "group-shuffle-balance-select: roi_original + deployed quality gate"
  },
  "operating_counts": {
    "blocked_positive": 1,
    "blocked_negative": 9,
    "blocked_total": 10,
    "likely_count": 13,
    "uncertain_count": 17
  }
}