{
  "checker": {
    "details": {
      "argv": [
        "/usr/bin/python3",
        "-B",
        "<host-path>"
      ],
      "kind": "cli",
      "needs_browser": false,
      "needs_credentials": false,
      "returncode": 0,
      "scope": "product operation",
      "stderr": "",
      "stdout": "{\n  \"optional_numerics_run\": false,\n  \"python_version\": \"3.12.3\",\n  \"runs\": [\n    {\n      \"exit_code\": 0,\n      \"output\": \"verify_rational.json\",\n      \"output_sha256\": \"f4e99e78b1e10cc19b07ec60210dfd6134c86311c86e7e2ff3e5d65dcc4b0223\",\n      \"script\": \"verify_rational.py\",\n      \"script_sha256\": \"1451fefbe1c9770a4240e11d4a977229386fa0faff711e8e2a6ed65a423a7b90\",\n      \"stable_json_format\": true,\n      \"stderr\": \"\",\n[excerpt truncated]",
      "working": true
    },
    "status": "PASS"
  },
  "deviations": [
    "Ran the checks in place instead of in the README's fresh writable copy. The probe argv must reference the repo script directly, and a copy outside the repo was rejected as agent-written code. The runner only adds execution_report.json beside the inputs; the temporary copy I made earlier was removed.",
    "No dependencies were installed; the default checks need only python3 3.12, which is present on the guest."
  ],
  "main_blocker": null,
  "operation": "Ran the default rectangular certificate checks from preprints/Complex-Matrix-Multiplication-Below-2.258-and-Rectangular-Bounds-September-24-2026/verification/README.md (python3 -B verification/certificates/checks/run_checks.py). It runs verify_rational.py, verify_construction.py and verify_baseline.py, compares outputs byte-for-byte with the saved JSON, and reports status passed (exit 0).",
  "operation_scope": "Covers only the default standard-library rectangular checks. Not exercised: the square-certificate replay (reproduce.py and verify_manuscript_bounds.py), which needs a C++17 compiler with int128, UBSan and GMP headers; the optional --numerics diagnostics, which need mpmath==1.3.0; and the Lean/Comparator checks under lean/, which need comparator, landrun, lean4export and lake. The command checks finite arithmetic outputs only; the tensor constructions and analytic allowances are not verified.",
  "outcome": "working",
  "steps": [
    "Read README.md and lean/README.md; no runnable command at top level. lean/ComparatorChallenges/README.md needs comparator, landrun, lean4export and lake; not attempted.",
    "Checked preprint verification READMEs for a runnable command; chose the Complex-Matrix-Multiplication preprint.",
    "cd preprints/Complex-Matrix-Multiplication-Below-2.258-and-Rectangular-Bounds-September-24-2026 && python3 -B verification/scripts/check_certificate.py  -> PASS: 22 numerical payload entries; 57 clean build inputs (rc 0; integrity-only, not used as probe)",
    "python3 -B verification/certificates/checks/run_checks.py  -> status passed, rc 0"
  ],
  "stuck_step": null,
  "suggested_fix": null
}