github-a11y-scanner

<!-- CANONICAL SOURCE: .github/skills/github-a11y-scanner/SKILL.md -- Edit the canonical source; sync to Gemini via scripts/check-gemini-sync.ps1 --> # GitHub Accessibility Scanner Integration ## What Is the GitHub Accessibility Scanner? The [GitHub Accessibility Scanner](https://github.com/github/accessibility-scanner) (`github/accessibility-scanner@v2`) is an official GitHub Action that: - Scans live URLs for accessibility barriers using axe-core in a headless browser - Creates trackable GitHub Issues for each finding, with affected element, WCAG criterion, and remediation guidance - Optionally assigns issues to GitHub Copilot for AI-powered fix suggestions and PR creation - Caches results across runs for delta detection (new, fixed, persistent findings) - Supports authenticated scanning (login flows, SSO, passkeys via Playwright auth context) - Optionally captures screenshots and attaches them to filed issues **Current version:** v2 (public preview) ## Detecting Scanner Presence To determine whether a repository has the GitHub Accessibility Scanner configured: ### Workflow File Detection Search for workflow files referencing the scanner action: ```bash # Search in .github/workflows/ for the scanner action reference grep -rl "github/accessibility-scanner" .github/workflows/ ``` **Pattern to match in YAML:** ```yaml - uses: github/accessibility-scanner@v2 ``` ### Workflow Inputs When a scanner workflow is found, extract its configuration: | Input | Required | D...