Borrowing it
Nothing to install: this file belongs to saajunaid/caddis-plugin. 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/saajunaid/caddis-plugin/main/.github/instructions/accessibility.instructions.mdgit clone --depth 1 https://github.com/saajunaid/caddis-pluginWrote 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/instructions/saajunaid/caddis-plugin/accessibility)<a href="https://agentmods.dev/instructions/saajunaid/caddis-plugin/accessibility"><img src="https://agentmods.dev/badge/instructions/saajunaid/caddis-plugin/accessibility/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/instructions/saajunaid/caddis-plugin/accessibility"><img src="https://agentmods.dev/badge/instructions/saajunaid/caddis-plugin/accessibility.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.02195 | $0.02195 |
| Opus 5.5 | $0.00878 | $0.00878 |
| Sonnet 5.5 | $0.00439 | $0.00439 |
| Haiku 4.5 | $0.00219 | $0.00219 |
Grade A, and why
caddis-plugin accessibility.instructions.md 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 — 327 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Accessibility (a11y) Instructions
Guidelines for creating accessible code that conforms to WCAG 2.2 Level AA and provides inclusive experiences for users with disabilities.
Core Principles (POUR)
1. Perceivable
Information must be presentable to users in ways they can perceive.
2. Operable
User interface components must be operable.
3. Understandable
Information and operation must be understandable.
4. Robust
Content must be robust enough for assistive technologies.
Key Requirements
Color and Contrast
Minimum Contrast Ratios (WCAG AA)
| Element | Ratio | Example |
|---|---|---|
| Normal text | 4.5:1 | #1F2937 on #FFFFFF (13.5:1) ✓ |
| Large text (18pt+) | 3:1 | #4B5563 on #FFFFFF (6.2:1) ✓ |
| UI components | 3:1 | #E10A0A border on #FFFFFF ✓ |
| Focus indicators | 3:1 | #3B82F6 outline on #FFFFFF ✓ |
Color as Sole Indicator
Never use color alone to convey information:
<!-- ❌ Bad: Color only -->
<span class="text-red-500">Error</span>
<!-- ✅ Good: Color + icon + text -->
<span class="text-red-500">
<svg aria-hidden="true"><!-- error icon --></svg>
Error: Invalid email format
</span>
Keyboard Navigation
Focus Order
<!-- Focus should follow logical reading order -->
<header><!-- Tab 1 --></header>
<nav><!-- Tab 2-5 --></nav>
<main><!-- Tab 6+ --></main>
<footer><!-- Last tabs --></footer>
Focus Visibility
/* Always provide visible focus indicators */
:focus {
outline: 2px solid #3B82F6;
outline-offset: 2px;
}
/* Enhance for keyboard users */
:focus-visible {
outline: 3px solid #3B82F6;
outline-offset: 2px;
}
/* NEVER do this */
:focus { outline: none; } /* ❌ */
Skip Links
<body>
<a href="#main" class="skip-link">Skip to main content</a>
<header>...</header>
<nav>...</nav>
<main id="main">...</main>
</body>
<style>
.skip-link {
position: absolute;
left: -9999px;
top: auto;
width: 1px;
height: 1px;
overflow: hidden;
}
.skip-link:focus {
position: fixed;
top: 0;
left: 0;
width: auto;
height: auto;
padding: 0.5rem 1rem;
background: #E10A0A;
color: white;
z-index: 9999;
}
</style>
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 · 327 lines · 2,195 tokens per session scan A be9e98ed3299
caddis-plugin accessibility.instructions.md is an instructions file published in the GitHub repository saajunaid/caddis-plugin (0 stars, last pushed today), licensed MIT. It adds 2,195 tokens to every session, about $0.0088 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.
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