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 agentmods add instructions/xrnavigation/web-a11y-plugin/claude-mdgit clone --depth 1 https://github.com/xrnavigation/web-a11y-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/xrnavigation/web-a11y-plugin/claude-md)<a href="https://agentmods.dev/instructions/xrnavigation/web-a11y-plugin/claude-md"><img src="https://agentmods.dev/badge/instructions/xrnavigation/web-a11y-plugin/claude-md.svg" alt="Measured on agentmods" 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 | $0.00053 | $0.00053 |
| Opus 5 | $0.00026 | $0.00026 |
| Sonnet 5 | $0.00011 | $0.00011 |
| Haiku 4.5 | $0.00005 | $0.00005 |
Grade A, and why
web-a11y-plugin CLAUDE.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 4d 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.
The source is not reproduced here
No licence file
A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.
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.
- 4d ago First seen · 8 lines · 53 tokens per session scan A 2893dec46c6c
web-a11y-plugin CLAUDE.md is an instructions file published in the GitHub repository xrnavigation/web-a11y-plugin (1 stars, last pushed 18d ago), with no licence file. It adds 53 tokens to every session, 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 2026-08-31.
Other instructions, from other repositories
monochrome-ui AGENTS.md
AGENTS.md instructions for vaneenige/monochrome-ui, covering agents.md, north stars (non-negotiables), why the core looks weird (and should stay weird), clever tricks and code style.
tactual copilot-instructions.md
Copilot instructions for tactual-dev/tactual, covering copilot instructions — tactual, surface parity mandate (required), architecture overview, output contract (required) and exploration and safety (required).
ios-swiftui-accessibility-techniques CLAUDE.md
Claude Code instructions for cvs-health/ios-swiftui-accessibility-techniques, covering project rules, copyright header (required), rules, swift files and markdown files.
ACCESSIBILITY.md copilot-instructions.md
Copilot instructions for mgifford/ACCESSIBILITY.md, covering github copilot repository instructions, purpose and usefulness, required behavior, copilot-specific notes and where new copilot guidance belongs.
kolibri copilot-instructions.md
Copilot instructions for public-ui/kolibri, covering github copilot instructions for kolibri repository, kolibri overview, essential setup commands, 1. install node.js 22 and 2. enable pnpm.
arena AGENTS.md
AGENTS.md instructions for dravensoft-dev/arena, covering arena, for whoever changes it, which job is this?, where each decision goes, what this repo ships and where a new document goes.