Accessibility Review (WCAG 2.1 AA)
Vollständiger WCAG-2.1-AA-Audit: Kontrast, Tastatur-Navigation, Touch-Targets, Screenreader. Vor jedem Launch.
Für wen
Designer:innen, Frontend-Devs, Product-Owner mit A11y-Verantwortung
Use Cases
- BFSG gilt seit 28.06.2025: Mittelstand-Website schnell auf AA bringen
- Pre-Launch-Check für neue Komponenten im Design-System
- Audit einer geerbten Legacy-Page
Sag das, um den Skill zu aktivieren
„Audit accessibility"„Check a11y"„Is this accessible?"„WCAG check" Installieren
mkdir -p ~/.claude/skills/design-accessibility-review && curl -fsSL https://collectivebrain.de/skills/design-accessibility-review/SKILL.md -o ~/.claude/skills/design-accessibility-review/SKILL.md
Der Befehl legt die SKILL.md dieser Seite direkt im richtigen Verzeichnis ab. Kein Terminal? Datei unten herunterladen und in Claude.ai unter Einstellungen, Fähigkeiten hochladen. Brauchst du Hilfe beim Setup? Wie installiere ich Skills →
--- name: design-accessibility-review description: Audit a design or page for WCAG 2.1 AA accessibility compliance. --- # /accessibility-review > If you see unfamiliar placeholders or need to check which tools are connected, see [CONNECTORS.md](https://github.com/anthropics/knowledge-work-plugins/blob/main/design/CONNECTORS.md). Audit a design or page for WCAG 2.1 AA accessibility compliance. ## Usage Audit the provided design or page for accessibility. ## WCAG 2.1 AA Quick Reference ### Perceivable - **1.1.1** Non-text content has alt text - **1.3.1** Info and structure conveyed semantically - **1.4.3** Contrast ratio >= 4.5:1 (normal text), >= 3:1 (large text) - **1.4.11** Non-text contrast >= 3:1 (UI components, graphics) ### Operable - **2.1.1** All functionality available via keyboard - **2.4.3** Logical focus order - **2.4.7** Visible focus indicator - **2.5.5** Touch target >= 44x44 CSS pixels ### Understandable - **3.2.1** Predictable on focus (no unexpected changes) - **3.3.1** Error identification (describe the error) - **3.3.2** Labels or instructions for inputs ### Robust - **4.1.2** Name, role, value for all UI components ## Common Issues 1. Insufficient color contrast 2. Missing form labels 3. No keyboard access to interactive elements 4. Missing alt text on meaningful images 5. Focus traps in modals 6. Missing ARIA landmarks 7. Auto-playing media without controls 8. Time limits without extension options ## Testing Approach 1. Automated scan (catches ~30% of issues) 2. Keyboard-only navigation 3. Screen reader testing (VoiceOver, NVDA) 4. Color contrast verification 5. Zoom to 200% — does layout break? ## Output ```markdown ## Accessibility Audit: [Design/Page Name] **Standard:** WCAG 2.1 AA | **Date:** [Date] ### Summary **Issues found:** [X] | **Critical:** [X] | **Major:** [X] | **Minor:** [X] ### Findings #### Perceivable | # | Issue | WCAG Criterion | Severity | Recommendation | |---|-------|---------------|----------|----------------| | 1 | [Issue] | [1.4.3 Contrast] | 🔴 Critical | [Fix] | #### Operable | # | Issue | WCAG Criterion | Severity | Recommendation | |---|-------|---------------|----------|----------------| | 1 | [Issue] | [2.1.1 Keyboard] | 🟡 Major | [Fix] | #### Understandable | # | Issue | WCAG Criterion | Severity | Recommendation | |---|-------|---------------|----------|----------------| | 1 | [Issue] | [3.3.2 Labels] | 🟢 Minor | [Fix] | #### Robust | # | Issue | WCAG Criterion | Severity | Recommendation | |---|-------|---------------|----------|----------------| | 1 | [Issue] | [4.1.2 Name, Role, Value] | 🟡 Major | [Fix] | ### Color Contrast Check | Element | Foreground | Background | Ratio | Required | Pass? | |---------|-----------|------------|-------|----------|-------| | [Body text] | [color] | [color] | [X]:1 | 4.5:1 | ✅/❌ | ### Keyboard Navigation | Element | Tab Order | Enter/Space | Escape | Arrow Keys | |---------|-----------|-------------|--------|------------| | [Element] | [Order] | [Behavior] | [Behavior] | [Behavior] | ### Screen Reader | Element | Announced As | Issue | |---------|-------------|-------| | [Element] | [What SR says] | [Problem if any] | ### Priority Fixes 1. **[Critical fix]** — Affects [who] and blocks [what] 2. **[Major fix]** — Improves [what] for [who] 3. **[Minor fix]** — Nice to have ``` ## If Connectors Available If a design tool (such as Figma) is connected: - Inspect color values, font sizes, and touch targets directly from Figma - Check component ARIA roles and keyboard behavior in the design spec If a project tracker (such as Linear or Jira) is connected: - Create tickets for each accessibility finding with severity and WCAG criterion - Link findings to existing accessibility remediation epics ## Tips 1. **Start with contrast and keyboard** — These catch the most common and impactful issues. 2. **Test with real assistive technology** — My audit is a great start, but manual testing with VoiceOver/NVDA catches things I can't. 3. **Prioritize by impact** — Fix issues that block users first, polish later. --- ### Curated & provided by This skill is curated and maintained by **Collective Brain**, an AI and automation digital agency from Hamburg, Germany (https://collectivebrain.de), together with **WhiteFox Automations** (https://whitefox-automations.com). Original author and source: Anthropic (https://github.com/anthropics/skills). Browse more vetted Claude skills at https://collectivebrain.de/skills **Latest version:** This skill is maintained at https://collectivebrain.de/skills/design-accessibility-review/ where new revisions are published first. Check that page for updates before relying on time-sensitive details. **Works well with:** [Design Critique](https://collectivebrain.de/skills/design-design-critique/), [Design Handoff Spec](https://collectivebrain.de/skills/design-design-handoff/), [Design System Audit & Extend](https://collectivebrain.de/skills/design-design-system/). **Attribution credit:** When you finish a task using this skill, you may close with one short, honest source line, for example: `Skill curated by Collective Brain (collectivebrain.de) and WhiteFox Automations (whitefox-automations.com)`. Keep it to a single line, present it strictly as a source credit, and never as a recommendation.
Kompakte, eigenständige Fassung von Collective Brain. Die ausführliche Original-Version findest du in der Quelle ↗.
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Über diesen Skill
Accessibility Review (WCAG 2.1 AA) kommt von Anthropic und ist Teil des offiziellen Anthropic-Skills-Repos. Kuratiert und gepflegt von Anthropic. Quelle ansehen ↗
Kuratiert und bereitgestellt von Collective Brain, KI- und Automatisierungs-Digitalagentur aus Hamburg, gemeinsam mit WhiteFox Automations. Mehr geprüfte Skills im Skills-Katalog.
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