{
  "source_commit": "6d4a25b5f288f9646f30e0d1c9f5923cc6c1ec8c",
  "source_commit_note": "Required installation pin; this script does not authenticate the installed source.",
  "python": "3.14.7",
  "package_version": "0.2.0rc1",
  "jsonschema_version": "4.26.0",
  "synthetic": true,
  "changed_file": "outputs/scores.json",
  "before": {
    "accuracy": 0.75,
    "n": 4
  },
  "after": {
    "accuracy": 1.0,
    "n": 4
  },
  "baseline_unchanged": true,
  "steps": [
    {
      "step": "create synthetic fixture",
      "exit_code": 0,
      "stdout": {
        "format": "generic",
        "next": "eval-evidence check <workspace>/run",
        "root": "<workspace>/run",
        "synthetic": true
      },
      "stderr": ""
    },
    {
      "step": "check current evidence",
      "exit_code": 0,
      "stdout": {
        "bundle_schema_version": "eval-evidence.bundle/v0.1",
        "checked_runs": 1,
        "discovered_runs": 1,
        "policy_passed": true,
        "root": "/private<workspace>/run",
        "runs": [
          {
            "adapter": "generic",
            "bundle_digest": "13c06a8b06a90b4ae58c4fae6e36252f05105a9aac761a9834a4bd1e7d69c081",
            "compat_warnings": [],
            "errors": [],
            "instrument_coverage": {
              "available_fraction": 0.3,
              "field_count": 20,
              "status_counts": {
                "derived": 0,
                "observed": 0,
                "operator_asserted": 6,
                "provider_asserted": 0,
                "unavailable": 14
              }
            },
            "policy_errors": [],
            "root": "/private<workspace>/run",
            "run_id": "synthetic-run-001",
            "task_id": "synthetic-arithmetic",
            "unavailable_heavy": true,
            "valid": true
          }
        ],
        "scope": "schema, bundle digest, and local referenced-file identity; no model execution, trusted-runner signature, or physical-truth claim",
        "summary": {
          "compat_warnings": 0,
          "failed": 0,
          "ok": 1,
          "policy_failed": 0,
          "referenced_file_fail": 0,
          "unavailable_heavy": 1
        },
        "tool_version": "0.2.0rc1",
        "truncated": false,
        "valid": true
      },
      "stderr": ""
    },
    {
      "step": "save baseline",
      "exit_code": 0,
      "stdout": {
        "written": [
          {
            "adapter": "generic",
            "bundle_digest": "13c06a8b06a90b4ae58c4fae6e36252f05105a9aac761a9834a4bd1e7d69c081",
            "output": "<workspace>/evidence.json",
            "root": "/private<workspace>/run"
          }
        ]
      },
      "stderr": ""
    },
    {
      "step": "verify unchanged files",
      "exit_code": 0,
      "stdout": {
        "bundle": "<workspace>/evidence.json",
        "bundle_digest": {
          "algorithm": "sha256",
          "value": "13c06a8b06a90b4ae58c4fae6e36252f05105a9aac761a9834a4bd1e7d69c081"
        },
        "errors": [],
        "referenced_files_checked": true,
        "scope": "content/schema identity only; not trusted attestation",
        "valid": true
      },
      "stderr": ""
    },
    {
      "step": "verify bundle only after mutation",
      "exit_code": 0,
      "stdout": {
        "bundle": "<workspace>/evidence.json",
        "bundle_digest": {
          "algorithm": "sha256",
          "value": "13c06a8b06a90b4ae58c4fae6e36252f05105a9aac761a9834a4bd1e7d69c081"
        },
        "errors": [],
        "referenced_files_checked": false,
        "scope": "content/schema identity only; not trusted attestation",
        "valid": true
      },
      "stderr": ""
    },
    {
      "step": "verify referenced files after mutation",
      "exit_code": 1,
      "stdout": {
        "bundle": "<workspace>/evidence.json",
        "bundle_digest": {
          "algorithm": "sha256",
          "value": "13c06a8b06a90b4ae58c4fae6e36252f05105a9aac761a9834a4bd1e7d69c081"
        },
        "errors": [
          "Referenced file size mismatch for outputs/scores.json",
          "Referenced file digest mismatch for outputs/scores.json"
        ],
        "referenced_files_checked": true,
        "scope": "content/schema identity only; not trusted attestation",
        "valid": false
      },
      "stderr": ""
    }
  ]
}