reachy-mini-mcp: Instructions file for Claude Code

CLAUDE.md

reachy-mini-mcp CLAUDE.md is an instructions file for Claude Code from agentculture/reachy-mini-mcp. It costs 3,709 tokens per session, scanned A, original, MIT.

Repository guidance for an MCP server that lets AI agents control a Reachy Mini robot through its separately running local daemon. MCP is a standard way for AI tools to call software functions.

In plain words
What is it for?
Developing or maintaining the robot control layer, its command-line tool, the standard-input MCP server, or its HTTP server.
Why use it?
It gives coding agents the project’s structure, commands, and startup requirements, so they can work without guessing how robot operations are connected.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: reads .claude/ paths; mentions CLAUDE.md; mentions Claude Code.

This is agentculture/reachy-mini-mcp's own configuration. It tells Claude Code how to work on reachy-mini-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything reachy-mini-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to agentculture/reachy-mini-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.

Copy the file
curl -O https://raw.githubusercontent.com/agentculture/reachy-mini-mcp/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/agentculture/reachy-mini-mcp

Made for: Claude Code.

Wrote this? Show the measurements

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Per session 3,709 This file is loaded in full into every session.
When invoked 3,709 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.03709 $0.03709
Opus 5 $0.01854 $0.01854
Sonnet 5 $0.00742 $0.00742
Haiku 4.5 $0.00371 $0.00371

Measured 10d ago against content hash 82921f3e6d08, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

reachy-mini-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 10d 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 · 202 lines

How it starts

The opening of the file, as written. The whole thing — 202 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

What this is

A control layer for the Reachy Mini robot. Nothing here drives motors directly — every action is an HTTP call to the Reachy Mini daemon (default http://localhost:8000), which must be running separately. The code lives in the reachy_mini_mcp/ package (a pip-installable distribution, reachy-mini-mcp, built with hatchling). It exposes the daemon's capabilities to LLMs two ways, both backed by one shared tool repository:

  • reachy_mini_mcp/server.py — a FastMCP (stdio) MCP server. Exposes exactly one MCP tool, operate_robot, a meta-tool that dispatches to every robot operation by name. Individual tools are loaded into an in-process registry but deliberately not surfaced as separate MCP tools.
  • reachy_mini_mcp/server_openai.py — a FastAPI HTTP server (port 8100) that speaks an OpenAI-ish dialect: GET /tools, POST /execute_tool, POST /v1/chat/completions. Here each tool is exposed individually in OpenAI function-calling format.

In front of both sits reachy_mini_mcp/cli/ — the reachy-mini-mcp console script, an MCP-server manager: overview, show (print the mcp.json snippet), explain, install/uninstall (merge/remove the entry in a client config), doctor, and serve (run the server — what mcp.json launches). The manager imports no robot dependencies; only serve pulls in the FastMCP stack (lazily), so a bare pip install reachy-mini-mcp is a working manager and the robot runtime lives behind the [server] / [tts] / [openai] extras.

MCP client / HTTP client  →  reachy_mini_mcp.server | .server_openai  →  Reachy daemon (:8000)  →  robot/sim
                  manager:  reachy-mini-mcp {show,install,doctor,serve,...}

Beyond the robot-control layer, this repo is also an AgentCulture mesh agent — its mesh identity and vendored skill kit are described under Mesh identity and Skills below.

Read the full file on GitHub · 202 lines

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.

  1. 10d ago First seen · 202 lines · 3,709 tokens per session scan A 82921f3e6d08

Subscribe to this mod's changes

reachy-mini-mcp CLAUDE.md is an instructions file published in the GitHub repository agentculture/reachy-mini-mcp (32 stars, last pushed 1mo ago), licensed MIT. It adds 3,709 tokens to every session, about $0.0185 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.

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