{
  "checker": {
    "claims": [],
    "claims_note": "README makes no concrete product claims.",
    "cycle_checks": [
      {
        "claim": "Scheduled or looping main behavior",
        "command": "",
        "evidence": "README describes CLI setup and MCP operation; no product scheduler or periodic cycle was found in the documented entry point. Setup could not run due to unsupported Node 18 runtime.",
        "expected": "identify the product trigger",
        "input": "source inspection",
        "kind": "cycle",
        "outcome": "README describes CLI setup and MCP operation; no product scheduler or periodic cycle was found in the documented entry point. Setup could not run due to unsupported Node 18 runtime.",
        "source": "repository entry points",
        "verdict": "yes"
      }
    ],
    "details": {
      "argv": [
        "npx",
        "-y",
        "ruflo@latest",
        "init",
        "wizard"
      ],
      "blocker": "product invocation failed: {\"argv\": [\"npx\", \"-y\", \"ruflo@latest\", \"init\", \"wizard\"], \"returncode\": 0, \"stdout\": \"\\nRuFlo V3 Setup Wizard\\nAnswer questions to configure your project\\n\\n\\n? Select configuration preset:\\n  (Use arrow keys to navigate, enter to select)\\n\\n  > Default - Recommended settings for most projects\\n    Minimal - Core features only\\n    Full - All features enabled\\n    Custom - Choose each component\\n\", \"stderr\": \"\", \"needs_credentials\": false, \"needs_browser\": false}",
      "kind": "cli",
      "needs_browser": false,
      "needs_credentials": false,
      "returncode": 0,
      "stderr": "",
      "stdout": "\nRuFlo V3 Setup Wizard\nAnswer questions to configure your project\n\n\n? Select configuration preset:\n  (Use arrow keys to navigate, enter to select)\n\n  > Default - Recommended settings for most projects\n    Minimal - Core features only\n    Full - All features enabled\n    Custom - Choose each component",
      "working": false
    },
    "evidence_strength": "nothing_checked",
    "example_checks": [
      {
        "claim": "Install prerequisite runtime and invoke README quick start",
        "command": "",
        "deferred": false,
        "evidence": "README command npx ruflo@latest init wizard attempted after installing Ubuntu nodejs/npm; node v18.19.1 violates package engine >=20, and npm install --global n && n 22.14.0 failed with exit 243 and no output. Initial npx did install package but emitted EBADENGINE and did not establish successful operation.",
        "expected": "documented command completes successfully",
        "input": "",
        "kind": "example",
        "outcome": "README command npx ruflo@latest init wizard attempted after installing Ubuntu nodejs/npm; node v18.19.1 violates package engine >=20, and npm install --global n && n 22.14.0 failed with exit 243 and no output. Initial npx did install package but emitted EBADENGINE and did not establish successful operation.",
        "source": "README.md, Get started with Ruflo",
        "verdict": "blocked"
      }
    ],
    "status": "FAIL"
  },
  "deviations": [
    "Ubuntu nodejs/npm installed Node 18.19.1, below package engine >=20",
    "npm install --global n && n 22.14.0 failed with exit 243 and no output"
  ],
  "fault_owner": "prerequisite",
  "main_blocker": "Node.js >=20 required; available install attempt did not provide it",
  "operation": "npx ruflo@latest init wizard",
  "operation_scope": "README Quick Start requires Node >=20; installed guest Node is 18.19.1",
  "outcome": "blocked",
  "plain_failure": "The documented Ruflo setup did not run successfully because the guest has Node 18, while Ruflo requires Node 20 or newer.",
  "steps": [
    "git fetch pinned commit 88349655ebc2de8f9bf702aaf31d6be768e1ea11",
    "sudo -n apt-get update",
    "sudo -n apt-get install -y nodejs npm",
    "NODE_USE_ENV_PROXY=1 npx -y ruflo@latest init wizard --help"
  ],
  "stuck_step": "README quick start invocation",
  "suggested_fix": "Install Node.js 20 or newer in the guest, then rerun npx ruflo@latest init wizard and validate MCP functionality."
}