Is the A11y skill free?

Yes. The skill itself is free from Houseofmvps/ultraship. SkillProof publishes the install command and an independent test verdict at no cost.

Does A11y work with Claude Code?

It is in our test queue — we run every skill on real work before issuing a verdict, and this one is scheduled.

How do I install A11y?

Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.

Can I use A11y with Cursor, Copilot, Gemini CLI, Codex or other AI tools?

The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.

A11y

Scan static HTML for WCAG accessibility failures and auto-fix the deterministic ones.

by Houseofmvps · Houseofmvps/ultraship

In test queue

Install — copy the command Download source ↗

Test report

Verdict: In test queue
Tested: —
Environment: Pending

In the test queue — machine-screened (validator 85/100, 109★ repo), full install/trigger/output test scheduled.

What A11y does

Accessibility audit + auto-fix (WCAG 2.2 A/AA). Scans built/static HTML for screen-reader, keyboard, and structure failures, fixes the deterministic ones, and escalates to a rendered scan for contrast and focus. Use when the user wants to check or improve accessibility, fix WCAG issues, or pass an a11y review.

How to install A11y

git clone https://github.com/Houseofmvps/ultraship
cp -r ultraship/skills/a11y ~/.claude/skills/a11y

Skills live in ~/.claude/skills/ (global) or .claude/skills/ (per-project). Restart Claude Code after installing.

Commands — how to trigger A11y

/a11y Scan static HTML for WCAG accessibility failures and auto-fix the deterministic ones.

It also activates on plain-language prompts like these:

Run an accessibility audit on this built HTML
Fix the WCAG issues in this page automatically
Check this site for keyboard and screen-reader failures

Frequently asked questions

Is the A11y skill free?: Yes. The skill itself is free from Houseofmvps/ultraship. SkillProof publishes the install command and an independent test verdict at no cost.
Does A11y work with Claude Code?: It is in our test queue — we run every skill on real work before issuing a verdict, and this one is scheduled.
How do I install A11y?: Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.
Can I use A11y with Cursor, Copilot, Gemini CLI, Codex or other AI tools?: The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.