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Skill

Ss A11y

Audit a component or page for accessibility issues and fix them

Type
Skill
Repository
bitjaru/styleseed
GitHub stars
966
License
MIT
Repo last updated
Sep 26, 2026

What Ss A11y is

Ss A11y is a skill published in the bitjaru/styleseed repository on GitHub, which has about 966 stars. The repository describes itself as: “Open-source design-method engine for Claude Code, Codex & Cursor. 23 agent skills for fixed design judgment, multiple grammars, semantic palettes, reference compilation, and evidence-verified UI. MIT.”

A skill is a folder with a SKILL.md file: frontmatter with a name and a description, followed by instructions Claude follows. Claude loads a skill automatically when a task matches its description, and you can also run it directly with a slash and its name.

Skills work in Claude Code and in Claude Cowork, which makes Ss A11y a portable way to give Claude the same method everywhere.

How to install Ss A11y

Claude Code

  1. Download the ss-a11y folder from the repository.
  2. Save it as ~/.claude/skills/<skill-name>/SKILL.md for all projects, or .claude/skills/<skill-name>/SKILL.md for one project.
  3. Claude loads it automatically when a task matches; you can also run it with / and its name.

Claude Cowork

  1. Zip the skill folder so SKILL.md sits at the top level of the folder.
  2. Open Customize → Skills, click +, then upload the ZIP.
  3. Start a task that matches the description, or call it by name with /.

New to extending Cowork? Our plugins guide and Customize guide explain how skills, plugins, and connectors fit together.

Inside the source file

An excerpt from skills/ss-a11y/SKILL.md, shared under the repository's MIT license. Read the full file on GitHub.

Registry-first artifact boundary

When .styleseed/project.json and .styleseed/artifacts/index.json exist, resolve the requested artifact ID first, then read only .styleseed/bundles/ .md and .styleseed/manifests/ .json. Never fall back to the global legacy bundle for a registry project. Legacy projects may use .styleseed/effective-rules.md only when no registry exists.

When NOT to use

  • For general design system compliance review → use /ss-review
  • For Nielsen UX heuristics → use /ss-audit
  • For non-StyleSeed code (no data-slot, no semantic tokens) — assumes StyleSeed conventions
  • For runtime testing — this is a static code audit, not a screen-reader simulation

Target: $ARGUMENTS

Audit Criteria

WCAG 2.2 AA Compliance

1. Perceivable

  • Color contrast: Text must meet 4.5:1 (normal) or 3:1 (large/bold text)
  • Check text-muted-foreground (#717182) on bg-background (#FFFFFF) = 4.6:1 (passes)
  • Check text-brand on white (verify contrast with your skin's brand color)
  • Flag any custom colors that don't meet ratio
  • Non-text contrast: UI controls/graphics must meet 3:1
  • Text alternatives: All need alt, icons need aria-label when meaningful
  • Color independence: Don't convey info by color alone (add icons/text)

2. Operable

  • Touch targets: Minimum 44x44px (min-h-11 min-w-11) on touch surfaces
  • Flag undersized touch hit areas, not approved pointer-first desktop controls merely for being 36–40px tall
  • Pointer-first controls follow the resolved contract; preserve keyboard access and applicable accessibility floors
  • Icon buttons need an explicit hit area appropriate to the input mode
  • Keyboard navigation: All interactive elements must be keyboard-accessible
  • Tab order should be logical
  • focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2
  • Motion: Animations must respect prefers-reduced-motion
  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
      animation-duration: 0.01ms !important;
      transition-duration: 0.01ms !important;
    }
  }

3. Understandable

  • Labels: Form inputs must have visible labels or aria-label
  • Error messages: Form errors must be programmatically associated (aria-describedby)
  • Language: (or appropriate language code for your project)

4. Robust

  • Semantic HTML: Use appropriate elements ( , , , )
  • ARIA: Use Radix UI components (they handle ARIA automatically)
  • Roles: Custom interactive elements need proper role attributes

Design System Token Reference

Output

  1. Issues found: List with severity (Critical/Major/Minor)
  2. Auto-fixes: Apply fixes directly where possible
  3. Manual review needed: Flag items that need human judgment

Before you install

  • Read the whole file first. Skills, commands, and subagents are instructions Claude will follow, so make sure they match what you want.
  • Check which tools, scripts, or MCP servers it uses. Local servers and scripts run with your permissions.
  • Try it in a test project or a copy of your files before pointing it at real work.
  • Pin the version you tested, and review changes before updating.
  • Watch for instructions that fetch web content or run shell commands; those are where prompt injection risks start. See our prompt injection guide.

FAQ

What is Ss A11y?

Ss A11y is a skill for Claude Code and Claude Cowork from the bitjaru/styleseed repository on GitHub. Audit a component or page for accessibility issues and fix them

How do I install Ss A11y in Claude Code?

Download the ss-a11y folder from the repository. Save it as ~/.claude/skills/<skill-name>/SKILL.md for all projects, or .claude/skills/<skill-name>/SKILL.md for one project. Claude loads it automatically when a task matches; you can also run it with / and its name.

Can I use Ss A11y in Claude Cowork?

Zip the skill folder so SKILL.md sits at the top level of the folder. Open Customize → Skills, click +, then upload the ZIP. Start a task that matches the description, or call it by name with /.

Is Ss A11y safe to install?

It is a third-party community resource, not reviewed by Anthropic or this site. Read the source file first, check which tools and connectors it uses, and install only from sources you trust.

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Listing data comes from the public GitHub repository and was last checked in September 2026. Excerpts are © their authors and shared under MIT. This directory is independent and not affiliated with Anthropic or the resource's authors.