Borrowing it
Nothing to install: this file belongs to ambroise-leclerc/MduX. 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/ambroise-leclerc/MduX/develop/AGENTS.mdgit clone --depth 1 https://github.com/ambroise-leclerc/MduXWrote 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/ambroise-leclerc/mdux/agents-md)<a href="https://agentmods.dev/instructions/ambroise-leclerc/mdux/agents-md"><img src="https://agentmods.dev/badge/instructions/ambroise-leclerc/mdux/agents-md/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/ambroise-leclerc/mdux/agents-md"><img src="https://agentmods.dev/badge/instructions/ambroise-leclerc/mdux/agents-md.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 | $0.08315 | $0.08315 |
| Opus 5.5 | $0.03326 | $0.03326 |
| Sonnet 5.5 | $0.01663 | $0.01663 |
| Haiku 4.5 | $0.00831 | $0.00831 |
Grade A, and why
MduX AGENTS.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.
The source is not reproduced here
Licensed EUPL-1.2
The repository is licensed EUPL-1.2, which this catalogue does not treat as permission to reproduce the file. Read it at the source.
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 Changed · +6 lines · +126 tokens per session e3f0f78adbb1
- 1mo ago Changed · +9 lines · +193 tokens per session b031e82a0f8e
- 1mo ago Changed · +7 lines · +172 tokens per session b99f76c3d706
- 1mo ago Changed · +13 lines · +359 tokens per session f9f172ff6a98
- 1mo ago Changed · +13 lines · +413 tokens per session 87d6512b49c2
- 1mo ago Changed · +37 lines · +806 tokens per session 69cd5f7e5e2d
- 2mo ago First seen · 360 lines · 6,246 tokens per session scan A 05ab4820cbbd
MduX AGENTS.md is an instructions file published in the GitHub repository ambroise-leclerc/MduX (46 stars, last pushed 13d ago), licensed EUPL-1.2. It adds 8,315 tokens to every session, about $0.0333 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 instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deno copilot-instructions.md
Copilot instructions for denoland/deno, covering deno development guide for github copilot, network access, high level overview, key directories and key files to understand first.