Looks up WCAG 2.1 AA criteria and WAI-ARIA patterns, returning official W3C URLs with concise summaries. Use when user asks about accessibility standards, WCAG criteria (e.g., "1.4.3", "contrast"), ARIA attributes (e.g., "aria-expanded", "role=dialog"), or accessible component patterns (e.g., "accessible tabs", "modal dialog a11y").
Provides WCAG 2.1 AA criteria and WAI-ARIA pattern lookups with official W3C references.
npx claudepluginhub naporin0624/seo-claude-pluginsThis skill inherits all available tools. When active, it can use any tool Claude has access to.
aria-index.jsonwcag-index.jsonQuick lookup for WCAG 2.1 AA criteria and WAI-ARIA patterns with official W3C references.
Identify the query type:
Search the appropriate index:
Return results:
For detailed implementation:
When returning lookup results, use this format:
### [Criterion/Pattern Name]
**Summary**: [1-2 sentence explanation]
**Key Requirements**:
- [Requirement 1]
- [Requirement 2]
**Official Reference**: [URL]
**Quick Reference**: [URL] (if applicable)
| ID | Name | Key Point |
|---|---|---|
| 1.1.1 | Non-text Content | All images need alt text |
| 1.4.3 | Contrast | 4.5:1 normal, 3:1 large text |
| 2.1.1 | Keyboard | All interactive elements keyboard accessible |
| 2.4.7 | Focus Visible | Focus indicator must be visible |
| 4.1.2 | Name, Role, Value | Custom widgets need ARIA |
Don't use ARIA if native HTML works.
<!-- Prefer native HTML -->
<button>Submit</button> <!-- Not: <div role="button"> -->
<input type="checkbox"> <!-- Not: <div role="checkbox"> -->
| Pattern | Key Roles | Key Attributes |
|---|---|---|
| Dialog | dialog | aria-modal, aria-labelledby |
| Tabs | tablist, tab, tabpanel | aria-selected, aria-controls |
| Accordion | - | aria-expanded, aria-controls |
| Combobox | combobox, listbox, option | aria-expanded, aria-activedescendant |
| Menu | menu, menuitem | aria-haspopup, aria-expanded |
| Text Type | Minimum Ratio | Example |
|---|---|---|
| Normal text | 4.5:1 | #595959 on #fff (7:1) |
| Large text (18pt/14pt bold) | 3:1 | #767676 on #fff (4.5:1) |
| UI components | 3:1 | Button borders, form inputs |
Activates when the user asks about AI prompts, needs prompt templates, wants to search for prompts, or mentions prompts.chat. Use for discovering, retrieving, and improving prompts.
Search, retrieve, and install Agent Skills from the prompts.chat registry using MCP tools. Use when the user asks to find skills, browse skill catalogs, install a skill for Claude, or extend Claude's capabilities with reusable AI agent components.
Creating algorithmic art using p5.js with seeded randomness and interactive parameter exploration. Use this when users request creating art using code, generative art, algorithmic art, flow fields, or particle systems. Create original algorithmic art rather than copying existing artists' work to avoid copyright violations.