accessibility-checklisted

# Accessibility Check Skill Evaluate UI accessibility against WCAG 2.1 guidelines to ensure inclusive design for all users. ## When to Use - Before releasing new features - Auditing existing interfaces - Reviewing component libraries - Ensuring legal compliance - Improving user inclusivity ## WCAG 2.1 Checklist ### Level A (Minimum) #### Perceivable - [ ] **1.1.1 Non-text Content**: Images have alt text - [ ] **1.3.1 Info and Relationships**: Semantic HTML structure - [ ] **1.3.2 Meaningful Sequence**: Logical reading order - [ ] **1.4.1 Use of Color**: Color not sole indicator #### Operable - [ ] **2.1.1 Keyboard**: All functionality via keyboard - [ ] **2.1.2 No Keyboard Trap**: Can navigate away - [ ] **2.4.1 Bypass Blocks**: Skip to content link - [ ] **2.4.2 Page Titled**: Descriptive page titles - [ ] **2.4.3 Focus Order**: Logical tab sequence - [ ] **2.4.4 Link Purpose**: Links describe destination #### Understandable - [ ] **3.1.1 Language of Page**: `lang` attribute set - [ ] **3.2.1 On Focus**: No unexpected changes - [ ] **3.2.2 On Input**: No unexpected changes - [ ] **3.3.1 Error Identification**: Errors clearly described - [ ] **3.3.2 Labels**: Form inputs have labels #### Robust - [ ] **4.1.1 Parsing**: Valid HTML - [ ] **4.1.2 Name, Role, Value**: ARIA correctly used ### Level AA (Standard Target) #### Perceivable - [ ] **1.4.3 Contrast (Minimum)**: 4.5:1 for text - [ ] **1.4.4 Resize Text**: Readable at 200% zoom - [ ] **1.4.5 Images of Text**: Av