Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add instructions/grll/mcpadapt/claude-mdgit clone --depth 1 https://github.com/grll/mcpadaptWhat 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 | $0.00298 | $0.00298 |
| Opus 5 | $0.00149 | $0.00149 |
| Sonnet 5 | $0.00060 | $0.00060 |
| Haiku 4.5 | $0.00030 | $0.00030 |
Grade A, and why
mcpadapt 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 3d 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.
What it actually says
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
Build Commands
make sync: Set up dev environment with dependenciesmake format: Auto-format code with Ruffmake lint: Run Ruff lintermake mypy: Type-check code with mypymake tests: Run all tests with pytestpytest tests/test_file.py: Run a specific test filepytest tests/test_file.py::test_function: Run a specific test functionmake coverage: Run tests with coverage (95% required)
Code Style Guidelines
- Imports: Group by stdlib → third-party → local/project; alphabetize within groups
- Types: Full type annotations required; use Python 3.10+ typing features
- Naming: PascalCase for classes, snake_case for functions/variables, UPPERCASE for constants
- Docstrings: Google-style with Args and Returns sections
- Formatting: Ruff for linting and formatting (pre-commit hooks configured)
- Error Handling: Use explicit error types with descriptive messages
- Tests: Must maintain 95% coverage with pytest
Other
- Github: Use
ghcli for all actions requiring interaction with github - The name of the github repo is "grll/mcpadapt"
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.
- 3d ago First seen · 30 lines · 298 tokens per session scan A b0fe850fa79a
mcpadapt CLAUDE.md is an instructions file published in the GitHub repository grll/mcpadapt (425 stars, last pushed 10mo ago), licensed MIT. It adds 298 tokens to every session, about $0.0015 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 2026-08-30.
Other instructions, from other repositories
deepagents AGENTS.md
AGENTS.md instructions for langchain-ai/deepagents, covering global development guidelines for the deep agents monorepo, corridor security analysis, development workflow, suppressing ruff rules and pr conventions.
ida-pro-mcp CLAUDE.md
Instructions for mrexodia/ida-pro-mcp, covering claude.md, what this project is, core implementation rules, ida thread safety and api conventions.
openagent CLAUDE.md
Claude Code instructions for the-open-agent/openagent, covering claude.md, commands, architecture, backend (go / beego) and frontend (react).
langchain-aws AGENTS.md
Instructions for langchain-ai/langchain-aws, covering global development guidelines for the langchain monorepo, project architecture and context, langchain-aws structure, key components and langgraph-checkpoint-aws structure.
tableau-mcp CLAUDE.md
Instructions for tableau/tableau-mcp, covering claude.md, build & development commands, building, running the server and testing.
Swarm AGENTS.md
Instructions for christopherkarani/Swarm, covering agent instructions, public repository hygiene and development rules.