Borrowing it
Nothing to install: this file belongs to nyuchi/mukoko-news. 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/nyuchi/mukoko-news/main/CLAUDE.mdgit clone --depth 1 https://github.com/nyuchi/mukoko-newsWrote 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/nyuchi/mukoko-news/claude-md)<a href="https://agentmods.dev/instructions/nyuchi/mukoko-news/claude-md"><img src="https://agentmods.dev/badge/instructions/nyuchi/mukoko-news/claude-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/nyuchi/mukoko-news/claude-md"><img src="https://agentmods.dev/badge/instructions/nyuchi/mukoko-news/claude-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 | $0.29966 | $0.29966 |
| Opus 5.5 | $0.11986 | $0.11986 |
| Sonnet 5.5 | $0.05993 | $0.05993 |
| Haiku 4.5 | $0.02997 | $0.02997 |
Grade C, and why
mukoko-news CLAUDE.md scanned grade C with 1 finding 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.
Recursive force deletehighDestructive command
rm -rf with a variable or a broad path is one typo away from removing the wrong tree.
pnpm clean # rm -rf .next out 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.
- 1mo ago Changed · -3 lines · +38 tokens per session 33fa405d177a
- 1mo ago Changed · +2 tokens per session 9f80654587d0
- 1mo ago Changed · +27 lines · +1,359 tokens per session 150e2e8a6d79
- 1mo ago Changed · +109 lines · +5,400 tokens per session 55fe256c40a8
- 1mo ago Changed · +7 lines · +880 tokens per session 504aa229bb7d
- 1mo ago Changed · +50 lines · +2,087 tokens per session c18c579b2eaa
- 1mo ago Changed · +172 lines · +12,095 tokens per session 8284d9b950dd
- 1mo ago Changed · +19 lines · +775 tokens per session 9cc88c64ab42
- 1mo ago Changed · +8 lines · +1,695 tokens per session df233dddcc6b
- 1mo ago First seen · 316 lines · 5,635 tokens per session scan C b39adad4cf0d
mukoko-news CLAUDE.md is an instructions file published in the GitHub repository nyuchi/mukoko-news (2 stars, last pushed 1mo ago), with no licence file. It adds 29,966 tokens to every session, about $0.1199 per session on Opus 5.5. A static security scan graded it C with 1 finding (recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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).
vscode model-prompts.instructions.md
Model-specific prompt authoring and registry guidelines.