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kb-design-system

Reference data, not a reviewer. Validate design system tokens for WCAG AA/AAA contrast. Compute color token contrast, focus ring validation (WCAG 2.4.13), motion tokens, and spacing for touch targets across frameworks.

skills/kb-design-system/SKILL.md

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## Design System Accessibility Skill

This skill provides reference data for design token contrast validation, focus ring compliance, and spacing audits. Used by the `design-system-auditor` skill.

---

## WCAG Contrast Ratio - Computation Reference

### Step 1: Linearize sRGB Channel

For each channel `C` in `[0, 255]`:

```text
c = C / 255