{
  "slug": "chrome-devtools-mcp-adds-the-lighthouse-audit-tool-eef75e562db0",
  "title": "chrome-devtools-mcp adds the lighthouse_audit tool",
  "tools": [
    "chrome-devtools-mcp"
  ],
  "tags": [
    "agent"
  ],
  "introduced_at": "2026-03-05T18:23:50.000Z",
  "announced_at": "2026-03-05T18:23:50.000Z",
  "effective_at": null,
  "date_basis": "source-publication",
  "status": "unknown",
  "how": {
    "incantation": "When reviewing a page for accessibility, SEO, or best practices, call `lighthouse_audit` with `device` set to `desktop` or `mobile` and `mode` set to `navigation` to reload and audit, or `snapshot` to audit the current state.",
    "examples": [
      "{\"device\":\"desktop\",\"mode\":\"navigation\"}",
      "{\"device\":\"mobile\",\"mode\":\"snapshot\",\"outputDirPath\":\"<reports-directory>\"}"
    ],
    "gotchas": [
      "Version: 0.19.0",
      "device: Device to emulate; allowed values: `desktop`, `mobile`.",
      "mode: Audit mode; `navigation` reloads and audits, `snapshot` analyzes the current state.",
      "outputDirPath: Directory for reports; omitted means temporary files are used.",
      "Performance audits are handled by existing tools.",
      "If `outputDirPath` is omitted, temporary files are used."
    ]
  },
  "why_it_matters": "When reviewing a page in a repository's development workflow, run an accessibility, SEO, or best-practices audit.",
  "sources": [
    "https://github.com/ChromeDevTools/chrome-devtools-mcp/releases/tag/chrome-devtools-mcp-v0.19.0",
    "https://github.com/ChromeDevTools/chrome-devtools-mcp/pull/831",
    "https://github.com/ChromeDevTools/chrome-devtools-mcp/blob/dfdac2648e560d756a8711ad3bb1fa470be8e7c9/docs/tool-reference.md"
  ],
  "rank": 0.99043,
  "judge": {
    "publish": true,
    "judge_model": "codex-cli/gpt-6-luna+typesafe/jev-1.13.0",
    "prompt_version": "extract-v7+enrich-v1+judge-v2x3+jev-publish-v1"
  },
  "review_state": "approved",
  "provenance": {
    "run_id": "ghtools-20261008",
    "verdict_id": "ghtools-20261008:ghtools-20261008-cc1bd4ca877efb04-2:gate",
    "evidence_hash": "56231dffaba49cf8e90262718bcdb1642f05b9bbfde182e5b15d80d21cd1f33d"
  },
  "review": {
    "draft_hash": "27e6e2e474938a90cc127bba7022f2498e0ee69070df7f07d23983f705bc69d7",
    "reviewer": "publication-gate",
    "reviewed_at": "2026-10-07T00:00:00.000Z",
    "decision": "ghtools-20261008:gate",
    "reason": "3 of 3 judge runs approved with p_yes >= 0.9 (mean 0.99 >= 0.9; 2 needed) and Jev gave 0.84 (>= 0.6 needed)."
  }
}