Borrowing it
Nothing to install: this file belongs to RLabs-Inc/claude-mcp. 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/RLabs-Inc/claude-mcp/main/CLAUDE.mdgit clone --depth 1 https://github.com/RLabs-Inc/claude-mcpWrote 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/rlabs-inc/claude-mcp/claude-md)<a href="https://agentmods.dev/instructions/rlabs-inc/claude-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/rlabs-inc/claude-mcp/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 | $0.00668 | $0.00668 |
| Opus 5 | $0.00334 | $0.00334 |
| Sonnet 5 | $0.00134 | $0.00134 |
| Haiku 4.5 | $0.00067 | $0.00067 |
Grade A, and why
claude-mcp 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 8d 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 — 63 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Claude Helper File
Project Overview
This project is a Master Control Program (MCP) server that integrates with Claude Code CLI. The primary objective is to extend Claude's capabilities by providing tools that Claude can use directly when generating code.
Main Purpose
- Provide Claude with access to up-to-date documentation for frameworks and libraries
- Enable Claude to follow current best practices and use the latest APIs
- Integrate seamlessly with Claude Code CLI through a plugin system
Core Features
- Documentation fetcher tool that scrapes and indexes documentation
- Interactive CLI (
docadd) for managing framework documentation - Search functionality for finding information within documentation
- Claude Code integration that allows Claude to use fetched documentation
Implementation Notes
- Framework registration is persisted to disk in
data/framework-registry.json - Documentation is stored in the
docs/directory, organized by framework and version - Scrapers automatically extract content from framework documentation sites
- Users interact with the system primarily through
claude fetch-docs <framework>command
Build & Test Commands
- Install:
bun install - Development server:
bun dev - Start server:
bun start - Build:
bun build - Lint:
bun lint - Format:
bun format - Typecheck:
bun typecheck - Test:
bun test - Test single:
bun test -t "test name" - Clean:
bun clean
Current Progress
- Framework Registry Persistence ✅: Framework configurations are now saved to disk
- Interactive CLI ✅: Added comprehensive CLI tool for managing frameworks
- Documentation Fetcher ✅: Core scraping and processing functionality works
- Claude Code Integration ✅: Basic integration established
- Rate Limiting & Robustness ✅: Added intelligent rate limiting and robust error handling
- Site-Aware Scraping ✅: Enhanced scraper detects documentation site structure
- Language Filtering ✅: Implemented filtering for non-English content
- Search Improvements ✅: Implemented graceful fallback for search with improved error handling
- Error Recovery ✅: System now recovers gracefully from various error conditions
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.
- 8d ago First seen · 63 lines · 668 tokens per session scan A ed5bc5145262
claude-mcp CLAUDE.md is an instructions file published in the GitHub repository RLabs-Inc/claude-mcp (5 stars, last pushed 1y ago), licensed MIT. It adds 668 tokens to every session, about $0.0033 per session on Opus 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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