# Gate Accessibility

> WCAG 2.2 AA quality gate for ultraweb builds — computes real contrast ratios in the browser (computed colors canvas-normalized to sRGB, so oklch tokens measure correctly), walks the full keyboard path via Playwright (tab order, focus-visible ring on every interactive element, Escape closes every overlay), audits landmarks, heading structure, and alt text, re-tests every page under emulated prefers-reduced-motion, injects the WCAG 1.4.12 text-spacing override to catch clipped or overlapping text, and for DACH-market builds verifies a real BFSG /barrierefreiheit statement. Invoke in Phase 11 (Gates) of every ultraweb build before reporting done, and whenever the user says "accessibility check", "a11y audit", "WCAG", "contrast check", "keyboard navigation", "screen reader", "focus states", "text spacing", "BFSG", "Barrierefreiheitserklärung", or "is this accessible".

## Facts
- Page: https://tashan.sh/capability/skill-blyatiful1-gate-accessibility
- tashan id: skill:blyatiful1/gate-accessibility
- Source: https://github.com/blyatiful1/ultraweb
- Type: skill
- Category: design
- tashan score: not scored (catalogued only — too little public evidence)
- Adoption: 9.0
- Upkeep: 99.0
- Freshness: 97.0
- Evidence coverage: 84% of the inputs this score can use
- Health: active
- Instruction depth: not yet graded
- License: MIT
- Official: no

## Install

```sh
cp -r gate-accessibility ~/.claude/skills/
```

## Security audit
Not scanned. We audit npm-published capabilities; this one has no npm package we can resolve, or has not reached the queue. This is not a clean bill of health.

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Measured 2026-08-23 by tashan (https://tashan.sh) from public evidence. Scorer s5.