{
  "checker": {
    "details": {
      "argv": [
        "<host-path>",
        "fetch",
        "https://blog.cloudflare.com/the-agentic-internet/",
        "-o",
        "/tmp/md4a-probe-out.md"
      ],
      "blocker": "product invocation failed: {\"returncode\": 0, \"stdout\": \"\", \"stderr\": \"\", \"needs_credentials\": false, \"needs_browser\": false}",
      "kind": "cli",
      "needs_browser": false,
      "needs_credentials": false,
      "returncode": 0,
      "stderr": "",
      "stdout": "",
      "working": false
    },
    "status": "FAIL"
  },
  "deviations": [
    "README 'Development setup' uses uv; uv not used. Instead python3 -m venv + pip install -e '.[server]' per README pip path.",
    "python3 -m venv failed: ensurepip missing; ran 'sudo -n apt-get install -y python3.12-venv' (apt without sudo failed with permission denied)."
  ],
  "main_blocker": "product invocation failed: {\"returncode\": 0, \"stdout\": \"\", \"stderr\": \"\", \"needs_credentials\": false, \"needs_browser\": false}",
  "operation": "md4a fetch of a remote Markdown-for-Agents page (https://blog.cloudflare.com/the-agentic-internet/) saved to a file via the README's documented CLI command",
  "operation_scope": "Verified the origin returns text/markdown and writes the article; did not run the standalone server, unit tests, or lint suites",
  "outcome": "blocked",
  "steps": [
    "python3 -m venv .venv (after installing python3.12-venv via sudo apt-get)",
    "python -m pip install -e '.[server]' (README Installation / Remote discovery)",
    "md4a -h",
    "md4a fetch https://blog.cloudflare.com/the-agentic-internet/ -o <file>"
  ],
  "stuck_step": "<host-path> fetch https://blog.cloudflare.com/the-agentic-internet/ -o /tmp/md4a-probe-out.md",
  "suggested_fix": null
}