Borrowing it
Nothing to install: this file belongs to max-listov/ccmux. 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/max-listov/ccmux/main/CLAUDE.mdgit clone --depth 1 https://github.com/max-listov/ccmuxWrote 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/max-listov/ccmux/claude-md)<a href="https://agentmods.dev/instructions/max-listov/ccmux/claude-md"><img src="https://agentmods.dev/badge/instructions/max-listov/ccmux/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/max-listov/ccmux/claude-md"><img src="https://agentmods.dev/badge/instructions/max-listov/ccmux/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 | $0.04340 | $0.04340 |
| Opus 5.5 | $0.01736 | $0.01736 |
| Sonnet 5.5 | $0.00868 | $0.00868 |
| Haiku 4.5 | $0.00434 | $0.00434 |
Grade A, and why
ccmux 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 24d 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 — 321 lines — stays where its author put it; the contents beside it link to each section on GitHub.
ccmux — project conventions
🔒 This is a PUBLIC repo — never leak the maintainer's private identifiers
Everything committed here (code, docs, backlog, tests, comments) is published. NEVER write into
this repo the maintainer's private fleet/machine names, hostnames, machine rcPrefix values,
concrete session names, project names, usernames, email, or absolute home paths. This holds even
in examples, motivation text, and backlog notes.
- Use generic placeholders instead:
agent-A/agent-Bfor sessions,host-A/host-Bfor machines,<target>/<name>for arguments,/Users/u/...or~/...for paths,<prefix>for an rcPrefix. - Before finishing any edit that touches
.md/comments, sweep the changed lines for private tokens. - If unsure whether a term is private, treat it as private and use a placeholder.
bun scripts/check-publication.ts checks current tracked/untracked Markdown as part of the full
gate. The pre-commit hook uses the same structural rules on staged additions in every file type.
It rejects concrete home-path shapes, deployment-machine label shapes, operational frontmatter
and UUID-addressed return routes; diagnostics show only file, line and rule. Generic placeholders
remain valid. This is not an exhaustive private-name detector or a historical Git/asset scan:
review arbitrary prose manually, and never embed private identifiers in the checker itself.
Commit messages carry the same rule — and one leak the list above missed
Claude Code appends Co-Authored-By: Claude … and Claude-Session: https://claude.ai/code/session_…
to commit messages by default. That default lives in the agent's environment, not in this repo,
so it is not something a session decides to do — it is something a session must be stopped from
doing. Claude-Session is a live link to the maintainer's private working session, published in a
public repository: more sensitive than any name in the list above, and absent from it. Two commits
reached main carrying both before this was written down.
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.
- 24d ago Changed · +22 lines · +400 tokens per session 749c125f2a4d
- 1mo ago Changed · +35 lines · +668 tokens per session f16dbb666c4b
- 1mo ago Changed b48cbb9a00a3
- 1mo ago Changed · -1 tokens per session c094b87906da
- 1mo ago Changed · +52 lines · +836 tokens per session a6257c599896
- 2mo ago First seen · 212 lines · 2,437 tokens per session scan A 8a6d67e2f05d
ccmux CLAUDE.md is an instructions file published in the GitHub repository max-listov/ccmux (2 stars, last pushed 6d ago), licensed MIT. It adds 4,340 tokens to every session, about $0.0174 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.
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.