{
  "formula_id": "PREDICTION_ACCURACY_HARNESS_V4",
  "generated_at": "2026-05-31T00:00:00+09:00",
  "builder_version": "v4.todo.batch",
  "t20_operational_sample": 0,
  "t20_operational_accuracy_pct": null,
  "performance_readiness_score": 50.0
}