Borrowing it
Nothing to install: this file belongs to warpdotdev/oz-skills. 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/warpdotdev/oz-skills/main/.agents/skills/web-accessibility-audit/SKILL.mdgit clone --depth 1 https://github.com/warpdotdev/oz-skillsWrote 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/warpdotdev/oz-skills/web-accessibility-audit)<a href="https://agentmods.dev/skills/warpdotdev/oz-skills/web-accessibility-audit"><img src="https://agentmods.dev/badge/skills/warpdotdev/oz-skills/web-accessibility-audit/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/warpdotdev/oz-skills/web-accessibility-audit"><img src="https://agentmods.dev/badge/skills/warpdotdev/oz-skills/web-accessibility-audit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 2 findings, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium MCP Rug Pull · line 103 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 109 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
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 | $0.00032 | $0.03371 |
| Opus 5.5 | $0.00013 | $0.01348 |
| Sonnet 5.5 | $0.00006 | $0.00674 |
| Haiku 4.5 | $0.00003 | $0.00337 |
Grade A, and why
web-accessibility-audit 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 1mo 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.
How it starts
The opening of the file, as written. The whole thing — 496 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Accessibility Auditor
Audit web applications for WCAG 2.0/2.1/2.2 compliance by identifying common violations and providing actionable remediation steps.
When to Use
- User requests accessibility audit, a11y check, or WCAG compliance review
- User mentions accessibility issues, screen readers, or keyboard navigation problems
- User asks to check or improve accessibility for people with disabilities
WCAG Principles: POUR
| Principle | Description |
|---|---|
| Perceivable | Content can be perceived through different senses |
| Operable | Interface can be operated by all users |
| Understandable | Content and interface are understandable |
| Robust | 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 |
12 Most Common WCAG Violations
Based on WebAIM Million (2021) research analyzing top 1M websites:
-
Low Color Contrast (WCAG 1.4.3) - 86.4% of sites
- Text < 4.5:1 contrast ratio
- Large text < 3:1 contrast ratio
- UI components < 3:1
-
Missing/Inadequate Alt Text (WCAG 1.1.1) - 60.6% of sites
- Images without alt attribute
- Alt text with "image", "picture", "photo"
- Empty alt on meaningful images
-
Missing Name, Role, or Value (WCAG 4.1.2)
- Interactive elements without accessible names
- Custom components without proper ARIA
- Buttons, form fields, custom widgets
-
Keyboard Navigation Failures (WCAG 2.1.1)
- Elements with onClick but not keyboard accessible
- Missing focus indicators
- Trapped keyboard focus
-
Unlabeled Form Controls (WCAG 1.3.1, 3.3.2) - 39.6% of sites
- Inputs without
<label>or aria-label - Labels not programmatically associated
- Inputs without
-
Missing Language Attributes (WCAG 3.1.1) - 28.9% of sites
- No lang attribute on
<html> - Missing lang for foreign language passages
- No lang attribute on
What ships with it
5 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.
- 1mo ago First seen · 496 lines · 32 tokens per session scan A 9a95e62e3ac3
web-accessibility-audit is a skill published in the GitHub repository warpdotdev/oz-skills (822 stars, last pushed 2mo ago), licensed MIT. It adds 32 tokens to every session and 3,371 once invoked, about $0.0001 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 2026-08-30.
Other skills, from other repositories
a11y-ally
Use when running comprehensive WCAG accessibility audits with axe-core + pa11y + Lighthouse, generating context-aware remediation, or testing video accessibility. Supports 3-tier browser cascade with graceful degradation.
accessibility-testing
WCAG 2.2 compliance testing, screen reader validation, and inclusive design verification. Use when ensuring legal compliance (ADA, Section 508), testing for disabilities, or building accessible applications for 1 billion disabled users globally.
Accessibility Auditor
Comprehensive WCAG 2.1 AA compliance testing combining automated axe-core scans with manual keyboard navigation, screen reader compatibility, and focus management verification.
Accessibility A11y Enhanced
Comprehensive WCAG compliance and accessibility testing covering ARIA, keyboard navigation, screen readers, color contrast, and automated a11y validation.
Axe-core Accessibility Testing
Accessibility testing skill using axe-core and Playwright for automated WCAG 2.1 compliance auditing, custom rules, and accessibility reporting.
accessibility-audit
Fast, high-signal accessibility triage for pages, components, or PRs targeting WCAG 2.2 AA compliance.