{
  "schema_version": 2,
  "date": "2026-10-28",
  "synthetic_only": true,
  "runs": [
    {
      "result_name": "202610281948_synthetic_regression",
      "status": "succeeded",
      "utc_offset": "+08:00",
      "started_at": "2026-10-28T19:48:00.164453+08:00",
      "finished_at": "2026-10-28T19:48:08.903466+08:00",
      "event_count": 11,
      "sealed_files": 35,
      "independent_metrics": {
        "val": {
          "n": 100,
          "rmse": 1.4096490967700073,
          "mae": 1.0269596099467457,
          "r_squared": 0.8622920173607511
        },
        "test": {
          "n": 100,
          "rmse": 1.3146584703862008,
          "mae": 0.9916670195192064,
          "r_squared": 0.8615238681100172
        }
      },
      "baseline": {
        "val": {
          "rmse": 3.7987902163294054,
          "mae": 3.0044955588232822,
          "r_squared": -6.379042604920393e-05
        },
        "test": {
          "rmse": 3.5374308097119247,
          "mae": 2.7560807177322437,
          "r_squared": -0.002593636794261167
        }
      },
      "llm_generation_in_this_run": false,
      "source_snapshot_created": false,
      "generation_record_type": "declared_design_basis_before_computation",
      "trace_coverage": "observed_controller_boundaries_not_full_agent_or_R_trace"
    }
  ],
  "directory_time_precision": "minute",
  "directory_format": "YYYYMMDDHHmm_task",
  "same_minute_same_task": "reject_without_overwrite",
  "checks": {
    "status": "passed",
    "passed_tests": 29,
    "synthetic_task": "passed",
    "public_files_checked": 15,
    "language_pairs_checked": 6,
    "issues": [],
    "delivery_hashes": "passed",
    "directory_format": "YYYYMMDDHHmm_task",
    "cleanup": "blocked_by_automatic_approval_policy"
  },
  "cleanup": {
    "status": "blocked_by_automatic_approval_policy",
    "reason_returned": "blocked by policy",
    "more_specific_reason_available": false,
    "deleted_directories": 0,
    "retained_result": "202610281948_synthetic_regression",
    "verified_target_directories": 12,
    "active_process_matches": 0,
    "target_file_count": 281,
    "scope": "only_previous_synthetic_workflow_batches_and_their_receipts",
    "scientific_project_results": "not_touched"
  },
  "scientific_validation": "not_applicable_to_synthetic_check"
}