{
  "checker": {
    "claims": [
      {
        "claim": "With no listener the script reports NOT CHECKED rather than a successful endpoint check",
        "command": "/opt/homebrew/bin/python3 /private<guest-path> --port 9222",
        "evidence": "NOT CHECKED: nothing is listening on port 9222 (CDP endpoint unavailable; skipped this run).\n",
        "expected": "NOT CHECKED notice on stderr, exit 0",
        "input": "--port 9222 with nothing listening",
        "kind": "claim",
        "outcome": "Real input produced the expected result: NOT CHECKED: nothing is listening on port 9222",
        "returncode": 0,
        "source": "is available, the script prints **`NOT CHECKED: nothing is listening on port 9222`**",
        "source_checked": true,
        "source_file": "README.md",
        "verdict": "yes"
      }
    ],
    "cycle_checks": [
      {
        "claim": "Scheduled or looping main behavior",
        "command": "",
        "evidence": "Entry points inspected: close_idle_tabs.py has no loop, daemon, --once/--now or built-in scheduler; each run is a single pass that compares tabs with the saved state file. Scheduling is external: README describes cron/systemd timers and examples/cdpidletabs.timer.in runs the service every 60 seconds. The timer template is not a product cycle and was not run.",
        "expected": "identify the product trigger",
        "input": "source inspection",
        "kind": "cycle",
        "outcome": "Entry points inspected: close_idle_tabs.py has no loop, daemon, --once/--now or built-in scheduler; each run is a single pass that compares tabs with the saved state file. Scheduling is external: README describes cron/systemd timers and examples/cdpidletabs.timer.in runs the service every 60 seconds. The timer template is not a product cycle and was not run.",
        "source": "repository entry points",
        "verdict": "yes"
      }
    ],
    "details": {
      "argv": [
        "/opt/homebrew/bin/python3",
        "/private<guest-path>",
        "--port",
        "9222"
      ],
      "kind": "cli",
      "needs_browser": false,
      "needs_credentials": false,
      "returncode": 0,
      "scope": "product operation",
      "stderr": "NOT CHECKED: nothing is listening on port 9222 (CDP endpoint unavailable; skipped this run).",
      "stdout": "",
      "working": true
    },
    "evidence_strength": "readme_checked",
    "example_checks": [
      {
        "claim": "Offline unit test suite from the README runs",
        "command": "/opt/homebrew/bin/python3 -m unittest discover -s tests -q",
        "deferred": false,
        "evidence": "<email>/3.14.8/Frameworks/Python.framework/Versions/3.14/lib/python3.14/tempfile.py:484: ResourceWarning: Implicitly cleaning up <HTTPError 403: 'denied'>\n  _warnings.warn(self.warn_message, ResourceWarning)\n----------------------------------------------------------------------\nRan 52 tests in 0.199s\n\nOK",
        "expected": "Ran 52 tests OK",
        "input": "python3 -m unittest discover -s tests -q",
        "kind": "example",
        "outcome": "command completed successfully",
        "returncode": 0,
        "source": "README.md: Automated tests use mocked HTTP responses and temporary state files",
        "verdict": "yes"
      },
      {
        "claim": "Live tab report against a Chrome debugging endpoint",
        "command": "",
        "deferred": false,
        "evidence": "Missing prerequisite: no Chrome is installed on this macOS guest (/Applications has only Safari), no shared <env-var> is supplied, and nothing listens on 127.0.0.1:9222. Installing a browser is forbidden for this run, so the README example was not executed.",
        "expected": "documented command completes successfully",
        "input": "",
        "kind": "example",
        "outcome": "Missing prerequisite: no Chrome is installed on this macOS guest (/Applications has only Safari), no shared <env-var> is supplied, and nothing listens on 127.0.0.1:9222. Installing a browser is forbidden for this run, so the README example was not executed.",
        "source": "README.md: Example",
        "verdict": "blocked"
      }
    ],
    "status": "PASS"
  },
  "deviations": [
    "No Chrome installed and no <env-var> supplied, so the live README example and the Chrome-launch steps were not run.",
    "Checker rejected the relative script path because macOS /tmp resolves to /private/tmp; the probe and claim use the absolute path /private<guest-path> to the same README entrypoint.",
    "The --help claim was dropped because help output is setup-only for the checker.",
    "No Python or Node installs were needed; the repo uses only the standard library."
  ],
  "fault_owner": "prerequisite",
  "main_blocker": null,
  "operation": "Report idle Chrome tabs by comparing tab title and URL against a saved observation (close_idle_tabs.py, dry run) through a Chrome DevTools endpoint",
  "operation_scope": "The stdlib-only script itself was verified: Python 3.14.8 is present (README needs 3.8+), the offline unit test suite passes (52 tests OK), and with no listener it reports NOT CHECKED and exits 0. Live tab observation was NOT exercised because this macOS guest has no Chrome and no shared <env-var>, and installing a browser is forbidden for this run.",
  "outcome": "working",
  "plain_failure": "The tool's tab-checking step could not be tested live, because there is no Chrome browser running here to check. The script itself runs and its tests pass; it just reports that it could not reach a browser.",
  "steps": [
    "python3 --version (3.14.8 at /opt/homebrew/bin/python3)",
    "/opt/homebrew/bin/python3 close_idle_tabs.py --help (setup only)",
    "/opt/homebrew/bin/python3 -m unittest discover -s tests -q (52 tests OK)",
    "/opt/homebrew/bin/python3 close_idle_tabs.py --port 9222 (prints NOT CHECKED: nothing is listening on port 9222, exit 0)",
    "Starting Chrome with debugging (README macOS section) was not possible: Google Chrome.app is not installed and a browser may not be downloaded in this run"
  ],
  "stuck_step": "Starting or attaching to a Chrome instance with --remote-debugging-port (README: Starting Chrome with debugging, macOS)",
  "suggested_fix": "Provide a shared Chrome DevTools endpoint (set <env-var>) or pre-install Google Chrome on the guest, then rerun the README example: python3 close_idle_tabs.py --idle-seconds 600 --keep 'https://example.com/docs/*' twice with a gap."
}
