Borrowing it
Nothing to install: this file belongs to hex/claude-crawl. 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/hex/claude-crawl/main/CLAUDE.mdgit clone --depth 1 https://github.com/hex/claude-crawlWrote 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/hex/claude-crawl/claude-md)<a href="https://agentmods.dev/instructions/hex/claude-crawl/claude-md"><img src="https://agentmods.dev/badge/instructions/hex/claude-crawl/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/hex/claude-crawl/claude-md"><img src="https://agentmods.dev/badge/instructions/hex/claude-crawl/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 | $0.00761 | $0.00761 |
| Opus 5.5 | $0.00304 | $0.00304 |
| Sonnet 5.5 | $0.00152 | $0.00152 |
| Haiku 4.5 | $0.00076 | $0.00076 |
Grade A, and why
claude-crawl 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.
How it starts
The opening of the file, as written. The whole thing — 76 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Session Documentation Protocol
This is a Claude Code session managed by the cs tool. Session metadata lives in the .cs/ directory. The session root is your workspace for project files.
Session Files - READ THESE ON RESUME
When resuming this session, read the following files to restore context:
- .cs/summary.md - If exists, read first for previous session overview
- .cs/README.md - Session objective, environment, and outcome
- .cs/discoveries.md - Recent findings, observations, and ideas
- .cs/discoveries.compact.md - If exists, condensed historical findings
- .cs/changes.md - Modifications and fixes made
- .cs/artifacts/MANIFEST.json - List of tracked artifacts
Note: Historical discoveries are archived to .cs/discoveries.archive.md and condensed into .cs/discoveries.compact.md. Only read the archive if you need full detail on a specific past finding.
Artifact Auto-Tracking
Scripts and configuration files you create are automatically saved to .cs/artifacts/:
- Scripts: .sh, .bash, .zsh, .py, .js, .ts, .rb, .pl
- Configs: .conf, .config, .json, .yaml, .yml, .toml, .ini, .env
When you use the Write tool for these file types, they are automatically redirected to the .cs/artifacts/ directory and tracked in MANIFEST.json.
Documentation Discipline
Update the markdown documentation files throughout the session:
- Start of session: Fill in .cs/README.md objective and environment
- As you work: Update .cs/discoveries.md with findings and .cs/changes.md with modifications
- End of session: Complete the .cs/README.md outcome section
Treat these files as a lab notebook - document as you go, not just at the end.
Summary Command
When the session is complete, use the /summary command to generate an intelligent summary of the entire session. This will create a .cs/summary.md file synthesizing all documentation.
Secure Secrets Handling
Sensitive data is automatically detected and stored securely (macOS Keychain, Windows Credential Manager, or encrypted file):
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 · 76 lines · 761 tokens per session scan A 29324e463762
claude-crawl CLAUDE.md is an instructions file published in the GitHub repository hex/claude-crawl (1 stars, last pushed 7mo ago), licensed MIT. It adds 761 tokens to every session, about $0.0030 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.
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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).
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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
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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).
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AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.