{
  "checker": {
    "claims": [
      {
        "claim": "The primer tool returns current contextual information for localized, time-aware responses without an API key.",
        "command": "npm run start -- --ip 0.0.0.0 tools/call {\"tool\": \"primer\", \"arguments\": {}}",
        "evidence": "utc: 2026-10-24T02:41:51.511Z\\n  userTimezone: America/New_York\\n  userLocalTime: 10/23/2026, 10:41:51 PM\\nclient:\\n  ip: 127.0.0.1\\n  userAgent: coldpass-check/1\\nlocation:\\n  country: US\\n  city: Verona\\n  region: Pennsylvania\\n  regionCode: PA\\n  continent: NA\\n  postalCode: \\\"15147\\\"\\n  metroCode: \\\"508\\\"\\n  timezone: America/New_York\\n  coordinates:\\n    lat: \\\"40.50646\\\"\\n    lon: \\\"-79.8431\\\"\\nnetwork:\\n  asn: 701\\n  organization: Verizon Business\\n  datacenter: IAD\\n  protocol: HTTP/1.1\\n  tlsVersion: TLSv1.3\\n\"}]}",
        "expected": "Current UTC timestamp in the returned context.",
        "input": "{\"tool\": \"primer\", \"arguments\": {}}",
        "kind": "claim",
        "outcome": "Real input produced the expected result: utc",
        "source": "`primer` | Get current contextual information for localized, time-aware responses | No",
        "source_checked": true,
        "source_file": "README.md",
        "verdict": "yes"
      }
    ],
    "cycle_checks": [
      {
        "claim": "Scheduled or looping main behavior",
        "command": "",
        "evidence": "Inspected README Usage, Tool Filtering and Developer Guide and src entry points: the product handles request-response MCP tool calls; no cron, scheduler, loop, webhook or one-shot cycle interface is documented.",
        "expected": "identify the product trigger",
        "input": "source inspection",
        "kind": "cycle",
        "outcome": "Inspected README Usage, Tool Filtering and Developer Guide and src entry points: the product handles request-response MCP tool calls; no cron, scheduler, loop, webhook or one-shot cycle interface is documented.",
        "source": "repository entry points",
        "verdict": "yes"
      }
    ],
    "details": {
      "argv": [
        "npm",
        "run",
        "start",
        "--",
        "--ip",
        "0.0.0.0"
      ],
      "hosting": "local",
      "kind": "mcp_http",
      "protocolVersion": "2025-06-18",
      "scope": "remote hosted MCP initialize + tools/list",
      "serverInfo": {
        "name": "Jina AI Official MCP Server",
        "version": "1.9.0"
      },
      "tool_result": {
        "content": [
          {
            "text": "timestamp:\n  utc: 2026-10-24T02:41:51.209Z\n  userTimezone: America/New_York\n  userLocalTime: 10/23/2026, 10:41:51 PM\nclient:\n  ip: 127.0.0.1\n  userAgent: coldpass-check/1\nlocation:\n  country: US\n  city: Verona\n  region: Pennsylvania\n  regionCode: PA\n  continent: NA\n  postalCode: \"15147\"\n  metroCode: \"508\"\n  timezone: America/New_York\n  coordinates:\n    lat: \"40.50646\"\n    lon: \"-79.8431\"\nnetwork:\n  asn: 701\n  organization: Verizon Business\n  datacenter: IAD\n  protocol: HTTP/1.1\n  tlsVersion: TLSv1.3\n",
            "type": "text"
          }
        ]
      },
      "tool_result_checked": true,
      "tool_schema_bytes": 8137,
      "tools": [
        "primer",
        "guess_datetime_url",
        "capture_screenshot_url",
        "read_url",
        "search_web",
        "search_arxiv",
        "search_ssrn",
        "search_jina_blog",
        "search_images",
        "sort_by_relevance",
        "deduplicate_strings",
        "extract_pdf"
      ],
      "transport": "streamable-http",
      "url": "http://127.0.0.1:8787/v1",
      "working": true
    },
    "evidence_strength": "readme_checked",
    "example_checks": [
      {
        "claim": "No finite runnable README examples beyond the documented local server quickstart; server behavior is replayed by probe.json.",
        "command": "",
        "deferred": false,
        "evidence": "npm run start is a persistent server command; its install and live tool-call behavior are replayed by probe.json, which starts and stops it.",
        "expected": "documented command completes successfully",
        "input": "",
        "kind": "example",
        "outcome": "npm run start is a persistent server command; its install and live tool-call behavior are replayed by probe.json, which starts and stops it.",
        "source": "README.md / Developer Guide / Local Development",
        "verdict": "blocked"
      }
    ],
    "status": "PASS"
  },
  "deviations": [
    "Initial Ubuntu Node.js 18 was incompatible with Wrangler and dependency engine requirements; upgraded the guest runtime to Node.js 22.",
    "The README's server command is persistent, so it is captured in the MCP probe rather than a finite example replay."
  ],
  "fault_owner": null,
  "main_blocker": null,
  "operation": "Start the documented local Cloudflare Worker MCP server and call primer over Streamable HTTP",
  "operation_scope": "Pinned revision b938c00f0870a75b39a78d5dff1f5bf645151a6e; local development with Node.js 22 and npm dependencies installed",
  "outcome": "working",
  "plain_failure": null,
  "steps": [
    "Installed Node.js 22 in the disposable Ubuntu guest because the dependencies require Node 20 or newer.",
    "Ran the README's npm install command.",
    "Ran the README's npm run start command and replayed a primer tools/call at http://127.0.0.1:8787/v1.",
    "Validated claims and replayed the saved MCP probe."
  ],
  "stuck_step": null,
  "suggested_fix": null
}