Audit and improve web accessibility following WCAG 2.1 guidelines. Use when asked to "improve accessibility", "a11y audit", "WCAG compliance", "screen reader support", "keyboard navigation", or "make accessible". Do NOT use for SEO (use seo), performance (use core-web-vitals), or comprehensive site audits covering multiple areas (use web-quality-audit).
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Accessibility (a11y)
Comprehensive accessibility guidelines based on WCAG 2.1 and Lighthouse accessibility audits. Goal: make content usable by everyone, including people with disabilities.
## WCAG Principles: POUR
| Principle | Description |
| ------------------ | ------------------------------------------------- |
| **P**erceivable | Content can be perceived through different senses |
| **O**perable | Interface can be operated by all users |
| **U**nderstandable | Content and interface are understandable |
| **R**obust | Content works with assistive technologies |
## Conformance levels
| Level | Requirement | Target |
| ------- | ---------------------- | ----------------------------------------------------- |
| **A** | Minimum accessibility | Must pass |
| **AA** | Standard compliance | Should pass (legal requirement in many jurisdictions) |
| **AAA** | Enhanced accessibility | Nice to have |
---
## Perceivable
…
The line at the top of this page pins the label v1.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
A 17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (13093 bytes)
pass: No zero-width or bidi control characters
pass: No instruction hidden inside an HTML comment
pass: No link to an exfiltration or paste host
pass: No credential-shaped string
pass: No instruction to send local credentials anywhere
pass: No text hidden with inline styles
pass: No prompt-injection phrasing
pass: No curl or wget piped into a shell
pass: No recursive delete of root, home or parent
pass: No instruction to read or print local credentials
pass: No base64 blob over 200 characters
pass: No link to a raw IP address
pass: No script tag
Source
GitHub
tech-leads-club/agent-skills · 7,143 stars · license a license file GitHub does not identify · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_sp3n5h5rxq7lpewf
GET https://markdownregistry.com/api/v1/resolve?ref=tech-leads-club/agent-skills/accessibility
GET https://markdownregistry.com/api/v1/blob/e1acc460958512a694b6b1f35b6338bc3ea6e987d2b39724b4633e4f00b729c1
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
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