lighthouse-scanner

<!-- CANONICAL SOURCE: .github/skills/lighthouse-scanner/SKILL.md -- Edit the canonical source; sync to Gemini via scripts/check-gemini-sync.ps1 --> # Lighthouse CI Accessibility Integration ## What Is Lighthouse CI? [Lighthouse CI](https://github.com/GoogleChrome/lighthouse-ci) is a suite of tools for running Google Lighthouse audits in CI pipelines. The most common GitHub Actions integration uses [`treosh/lighthouse-ci-action`](https://github.com/treosh/lighthouse-ci-action). Lighthouse provides: - Performance, accessibility, best practices, and SEO scoring (0-100) - Individual audit results with pass/fail status and detailed findings - Score budgets and assertions to fail builds on regressions - HTML and JSON report artifacts - Score comparison across runs for trend tracking **Accessibility focus:** The Lighthouse accessibility category runs a subset of axe-core rules and reports a weighted score from 0-100 along with individual audit violations. ## Detecting Lighthouse CI Presence ### Workflow File Detection Search for workflow files referencing Lighthouse CI: ```bash # Search for the treosh Lighthouse CI action grep -rl "treosh/lighthouse-ci-action" .github/workflows/ # Search for official Lighthouse CI CLI usage grep -rl "lhci autorun\|lighthouse-ci" .github/workflows/ ``` **Patterns to match in YAML:** ```yaml - uses: treosh/lighthouse-ci-action@v12 ``` ### Configuration File Detection Lighthouse CI uses configuration files in the repository root: ```bas...