Borrowing it
Nothing to install: this file belongs to myths-labs/muse. 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/myths-labs/muse/main/CLAUDE.mdgit clone --depth 1 https://github.com/myths-labs/museWrote 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/myths-labs/muse/claude-md)<a href="https://agentmods.dev/instructions/myths-labs/muse/claude-md"><img src="https://agentmods.dev/badge/instructions/myths-labs/muse/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 5.1 | $0.02062 | $0.02062 |
| Opus 5 | $0.01031 | $0.01031 |
| Sonnet 5 | $0.00412 | $0.00412 |
| Haiku 4.5 | $0.00206 | $0.00206 |
Grade B, and why
muse CLAUDE.md scanned grade B 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 today.
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.
Asks for rootmediumPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
- ✅ `chmod 600 FILE` (permission · 不读 content) How it starts
The opening of the file, as written. The whole thing — 121 lines — stays where its author put it; the contents beside it link to each section on GitHub.
🔴 Cutting corners or faking completion = YOU GET DELETED. Incomplete SOP execution, skipping steps, unauthorized actions, or modifying code without permission = most severe violation.
🏛 Constitution — MUSE
Copy this template to your project root and customize. This is the AI's "constitution" — iron rules it must follow every session.
Iron Rules
- Language: 🚨 YOU MUST communicate in 简体中文. Every response, explanation, question, and comment MUST be in 简体中文. This is NON-NEGOTIABLE. Do NOT default to English unless this rule explicitly says English.
- Skill-First: Before ANY task, check if a relevant Skill exists in
.agent/skills/ - Large Files: Only view ≤300 lines at a time. Never blindly read entire large files.
- Context Protection: At observed context ≥80%, save the current Lane, compact, verify and continue; do not force Bye
- Verify Before Claiming Done: Run
verification-before-completionskill before saying "done" - End Sessions Properly: Use
/savefor ordinary progress and/byefor explicit formal closeout
Skill-Driven Execution
- Speed Reference (know which skill to use):
Task Skill Git commit git-commitCode review code-reviewer-agentBuild errors build-error-resolverDebugging systematic-debuggingVerify completion verification-before-completionGEO/SEO optimization geo-seo→geo-audit/geo-citability/geo-schema/geo-report-pdfGit 安全守卫 git-security-guard（commit/push 前检查泄露）去 AI 味 deai-humanizer（AI 文字 → 自然表达）网页版 Deck/PPT frontend-slides（零依赖 HTML 演示 + PPT 转 web + 12 预设主题 + Vercel 部署 + PDF 导出）
Context Health Pre-Check
Use actual current native context observations; UNKNOWN stays unknown. A percentage alone does not require a new conversation.
Save meaningful current-Lane deltas at least every ten interaction rounds when changes are unsaved; only legacy sessions without a Lane use CRASH_CONTEXT.md.
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.
- today Changed · +34 tokens per session 40b694ea4dac
- 8d ago First seen · 121 lines · 2,028 tokens per session scan B 081f5e30064f
muse CLAUDE.md is an instructions file published in the GitHub repository myths-labs/muse (32 stars, last pushed yesterday), licensed MIT. It adds 2,062 tokens to every session, about $0.0103 per session on Opus 5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other instructions, from other repositories
project-brain copilot-instructions.md
Instructions for Ethan-YS/project-brain, covering on session start, single-workstream, multi-workstream, update behavior and project red lines.
pluribus copilot-instructions.md
Instructions for caioribeiroclw-pixel/pluribus, covering project, stack, conventions, constraints and goals.
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
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.
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.