Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add organvm-iv-taxis/a-i--skills --skill accessibility-patternsgit clone --depth 1 https://github.com/organvm-iv-taxis/a-i--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/organvm-iv-taxis/a-i--skills/accessibility-patterns)<a href="https://agentmods.dev/skills/organvm-iv-taxis/a-i--skills/accessibility-patterns"><img src="https://agentmods.dev/badge/skills/organvm-iv-taxis/a-i--skills/accessibility-patterns/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/organvm-iv-taxis/a-i--skills/accessibility-patterns"><img src="https://agentmods.dev/badge/skills/organvm-iv-taxis/a-i--skills/accessibility-patterns.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 2 findings, up to high
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 →
- high Prompt Injection · line 66 Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.Fix: Audit all comments and invisible characters. Remove any instructions that direct the agent to perform unauthorized actions. Use plain, reviewable content.
- high Prompt Injection · line 142 Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.Fix: Audit all comments and invisible characters. Remove any instructions that direct the agent to perform unauthorized actions. Use plain, reviewable content.
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 | $0.00051 | $0.02672 |
| Opus 5 | $0.00026 | $0.01336 |
| Sonnet 5 | $0.00010 | $0.00534 |
| Haiku 4.5 | $0.00005 | $0.00267 |
Grade A, and why
accessibility-patterns 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 12d 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 — 476 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Accessibility Patterns
Build for everyone from the start.
Core Principles (POUR)
| Principle | Meaning | Example |
|---|---|---|
| Perceivable | Users can perceive content | Alt text, captions, contrast |
| Operable | Users can interact | Keyboard access, enough time |
| Understandable | Users can comprehend | Clear language, predictable |
| Robust | Works with assistive tech | Valid HTML, ARIA |
WCAG Levels
| Level | Description | Target |
|---|---|---|
| A | Minimum | Must have |
| AA | Standard | Industry standard, legal requirement |
| AAA | Enhanced | Nice to have |
Target Level AA for most projects.
Semantic HTML
Use the Right Element
| Instead of | Use |
|---|---|
<div onclick> |
<button> |
<span class="link"> |
<a href> |
<div class="header"> |
<header> |
<div class="nav"> |
<nav> |
<div class="main"> |
<main> |
<b> for emphasis |
<strong> |
<i> for emphasis |
<em> |
Document Structure
<!DOCTYPE html>
<html lang="en">
<head>
<title>Descriptive Page Title</title>
</head>
<body>
<a href="#main" class="skip-link">Skip to main content</a>
<header>
<nav aria-label="Main">
<!-- navigation -->
</nav>
</header>
<main id="main">
<h1>Page Title</h1>
<!-- Only one h1 per page -->
<article>
<h2>Section</h2>
<h3>Subsection</h3>
</article>
</main>
<aside aria-label="Related content">
<!-- sidebar -->
</aside>
<footer>
<!-- footer content -->
</footer>
</body>
</html>
Heading Hierarchy
h1 - Page title (one per page)
h2 - Major sections
h3 - Subsections
h4 - Sub-subsections
Never skip levels (h1 → h3)
Images & Media
Alt Text
<!-- Informative image -->
<img src="chart.png" alt="Bar chart showing sales increased 40% in Q4">
<!-- Decorative image -->
<img src="decorative-border.png" alt="" role="presentation">
<!-- Complex image -->
<figure>
<img src="complex-diagram.png" alt="System architecture diagram">
<figcaption>
Detailed description of the system architecture...
</figcaption>
</figure>
<!-- Image as link -->
<a href="/products">
<img src="product.jpg" alt="View our products">
</a>
What ships with it
4 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.
- 12d ago First seen · 476 lines · 51 tokens per session scan A 2328f09858ee
accessibility-patterns is a skill published in the GitHub repository organvm-iv-taxis/a-i--skills (17 stars, last pushed 15d ago), licensed Apache-2.0. It adds 51 tokens to every session and 2,672 once invoked, about $0.0003 per session on Opus 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.
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