What is codexcw CLAUDE.md?

A short instruction file for Claude Code, an AI coding assistant, that points it to the project's main AGENTS.md guide. It avoids copying the project's full rules into a second place.

Use it as a pointer when configuring Claude Code for the project, so the assistant reads the canonical development instructions first.

It gives Claude Code a familiar entry point while keeping conventions, commands, hooks, and release procedures in one authoritative document.

How c3-oss/codexcw configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to c3-oss/codexcw. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/c3-oss/codexcw/master/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/c3-oss/codexcw

Made for: Claude Code.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/c3-oss/codexcw/claude-md/github.svg)](https://agentmods.dev/instructions/c3-oss/codexcw/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/c3-oss/codexcw/claude-md"><img src="https://agentmods.dev/badge/instructions/c3-oss/codexcw/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/c3-oss/codexcw/claude-md"><img src="https://agentmods.dev/badge/instructions/c3-oss/codexcw/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 58 This file is loaded in full into every session.

When invoked 58 The same file — it is already loaded in full.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

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	$0.00058	$0.00058
Opus 5.5	$0.00023	$0.00023
Sonnet 5.5	$0.00012	$0.00012
Haiku 4.5	$0.00006	$0.00006

Measured 2mo ago against content hash 135a13a5a238, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

codexcw 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 2mo 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.

CLAUDE.md · 8 lines

What it actually says

Claude Code notes

See AGENTS.md for the canonical guidance. Conventions, layout, commands, hooks, and release trains all live there.

This file exists so Claude Code agents land on a familiar pointer; do not duplicate content from AGENTS.md here.

Changes

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.

2mo ago First seen · 8 lines · 58 tokens per session scan A 135a13a5a238

Subscribe to this mod's changes

codexcw CLAUDE.md is an instructions file published in the GitHub repository c3-oss/codexcw (1 stars, last pushed yesterday), licensed CC0-1.0. It adds 58 tokens to every session, about $0.0002 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.

agent automation codex codex-cli go monorepo

codexcw CLAUDE.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
codexcw CLAUDE.mdc3-oss/codexcw	Instructions file	1	yesterday	CC0-1.0	A	58	Claude Code
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	9,719	GitHub Copilot
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	5,516	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	yesterday	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	today	MIT	A	4,680	Codex, OpenCode
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	3,093	GitHub Copilot
vscode model-prompts.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	2,022	GitHub Copilot

codexcw: Instructions file for Claude Code