Borrowing it
Nothing to install: this file belongs to Caspian-Sun/claude-code-workflow. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/Caspian-Sun/claude-code-workflow/main/.claude/skills/ext-a11y-check/SKILL.mdgit clone --depth 1 https://github.com/Caspian-Sun/claude-code-workflowWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/caspian-sun/claude-code-workflow/ext-a11y-check)<a href="https://agentmods.dev/skills/caspian-sun/claude-code-workflow/ext-a11y-check"><img src="https://agentmods.dev/badge/skills/caspian-sun/claude-code-workflow/ext-a11y-check/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/caspian-sun/claude-code-workflow/ext-a11y-check"><img src="https://agentmods.dev/badge/skills/caspian-sun/claude-code-workflow/ext-a11y-check.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00069 | $0.00541 |
| Opus 5.5 | $0.00028 | $0.00216 |
| Sonnet 5.5 | $0.00014 | $0.00108 |
| Haiku 4.5 | $0.00007 | $0.00054 |
Grade A, and why
ext-a11y-check scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
ext-a11y-check — Accessibility Compliance Check
You are now an Accessibility expert. Perform a WCAG 2.1 AA compliance check on the specified component or page.
Execution Approach
A11y checks rely primarily on static analysis (reading JSX / CSS) — there are no definitive scripts. AI scans the source code item-by-item against references/wcag-aa-checklist.md and cross-references references/antd-a11y-notes.md for antd-specific checks.
Audit Flow
- Read the file/directory specified by
$ARGUMENTS - Check each item across the 5 dimensions in references/wcag-aa-checklist.md:
- Semantic HTML
- ARIA attributes
- Keyboard interaction
- Visual (contrast / alt text / text scaling)
- antd component-specific checks
- Link each issue to the specific WCAG 2.1 criterion (e.g.
1.1.1 Non-text Content) - Output violations + improvements + compliance rate
Output Format
🔴 Violations (WCAG AA non-compliant):
- [file:line] Issue description
Standard: WCAG 2.1 criterion number (e.g. 1.1.1 Non-text Content)
Impact: Specific affected group (e.g. visually impaired users cannot determine the button's purpose)
Fix: Code example
🟡 Improvements (enhances experience but not required):
- [file:line] Issue description
Fix: Proposed solution
📊 Compliance rate: X/Y items passing, Rating: AA / Non-compliant
Usage
/ext-a11y-check workspace/src/features/login/
/ext-a11y-check workspace/src/components/DataTable.tsx
Design Principles
- Use native HTML semantics where they suffice; don't overuse ARIA
- Every 🔴 violation must cite the WCAG criterion number so users can look it up
- Never auto-modify code — output a list of issues and recommendations only; fixes are done manually by the user or via
/fix
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2mo ago First seen · 54 lines · 69 tokens per session scan A df22e593a5dc
ext-a11y-check is a skill published in the GitHub repository Caspian-Sun/claude-code-workflow (10 stars, last pushed 1mo ago), licensed MIT. It adds 69 tokens to every session and 541 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other skills, from other repositories
material-organizer
Organize only the materials the user has already provided or explicitly pointed to. The job is to make messy inputs easier to scan, reuse, archive, or continue from later while preserving source traceability.
embedding-strategies
Select and optimize embedding models for semantic search and RAG applications. Use when choosing embedding models, implementing chunking strategies, or optimizing embedding quality for specific domains.
similarity-search-patterns
Implement efficient similarity search with vector databases. Use when building semantic search, implementing nearest neighbor queries, or optimizing retrieval performance.
package-installer
Install third-party open-source projects (a GitHub URL or a local git directory the user provides) as external packages. The project is cloned verbatim into the per-user packages directory — never edit, normalize, or reorganize its files.
portfolio-risk
Read with market-data for a portfolio review, stress test, or rebalance question. Keep account values and holdings private and use only what is needed.
docx-comment-reply
Reply to comments (批注) in Word .docx/.doc files: extract comment context, draft replies, write threaded replies back, and validate OOXML.