ableton-mcp-server: Instructions file for Claude Code

CLAUDE.md

ableton-mcp-server CLAUDE.md is an instructions file for Claude Code from ju5tinz/ableton-mcp-server. It costs 723 tokens per session, scanned A, a copy of claude-peers-mcp CLAUDE.md, MIT.

Repository instructions that tell a coding agent how to work on the Ableton MCP server, including its application programming interfaces, tests, and frontend. They require Bun, a JavaScript runtime and toolkit, for common development tasks.

In plain words
What is it for?
Use it when installing packages, running tests, building files, choosing database or web-server libraries, or editing the frontend of this project.
Why use it?
They prevent the agent from using tools and libraries that this project does not expect, such as Node.js, Vite, or Express. This keeps commands and code aligned with the repository.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md.

This is ju5tinz/ableton-mcp-server's own configuration. It tells Claude Code how to work on ableton-mcp-server 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 ableton-mcp-server configures →

Reuse

Borrowing it

Nothing to install: this file belongs to ju5tinz/ableton-mcp-server. 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/ju5tinz/ableton-mcp-server/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/ju5tinz/ableton-mcp-server

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.

agentmods badge for ableton-mcp-server CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/ju5tinz/ableton-mcp-server/claude-md.svg)](https://agentmods.dev/instructions/ju5tinz/ableton-mcp-server/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/ju5tinz/ableton-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/ju5tinz/ableton-mcp-server/claude-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 723 This file is loaded in full into every session.
When invoked 723 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 88% copy Near-identical to another mod 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 $0.00723 $0.00723
Opus 5 $0.00362 $0.00362
Sonnet 5 $0.00145 $0.00145
Haiku 4.5 $0.00072 $0.00072

Measured 7d ago against content hash 349f639941cf, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

ableton-mcp-server 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 7d 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.

Origin

This is a copy

88% identical to claude-peers-mcp CLAUDE.md — 35 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

CLAUDE.md · 107 lines

How it starts

The opening of the file, as written. The whole thing — 107 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Default to using Bun instead of Node.js.

  • Use bun <file> instead of node <file> or ts-node <file>
  • Use bun test instead of jest or vitest
  • Use bun build <file.html|file.ts|file.css> instead of webpack or esbuild
  • Use bun install instead of npm install or yarn install or pnpm install
  • Use bun run <script> instead of npm run <script> or yarn run <script> or pnpm run <script>
  • Use bunx <package> <command> instead of npx <package> <command>
  • Bun automatically loads .env, so don't use dotenv.

APIs

  • Bun.serve() supports WebSockets, HTTPS, and routes. Don't use express.
  • bun:sqlite for SQLite. Don't use better-sqlite3.
  • Bun.redis for Redis. Don't use ioredis.
  • Bun.sql for Postgres. Don't use pg or postgres.js.
  • WebSocket is built-in. Don't use ws.
  • Prefer Bun.file over node:fs's readFile/writeFile
  • Bun.$ls instead of execa.

Testing

Use bun test to run tests.

import { test, expect } from "bun:test";

test("hello world", () => {
  expect(1).toBe(1);
});

Frontend

Use HTML imports with Bun.serve(). Don't use vite. HTML imports fully support React, CSS, Tailwind.

Server:

import index from "./index.html"

Bun.serve({
  routes: {
    "/": index,
    "/api/users/:id": {
      GET: (req) => {
        return new Response(JSON.stringify({ id: req.params.id }));
      },
    },
  },
  // optional websocket support
  websocket: {
    open: (ws) => {
      ws.send("Hello, world!");
    },
    message: (ws, message) => {
      ws.send(message);
    },
    close: (ws) => {
      // handle close
    }
  },
  development: {
    hmr: true,
    console: true,
  }
})

HTML files can import .tsx, .jsx or .js files directly and Bun's bundler will transpile & bundle automatically. <link> tags can point to stylesheets and Bun's CSS bundler will bundle.

<html>
  <body>
    <h1>Hello, world!</h1>
    <script type="module" src="./frontend.tsx"></script>
  </body>
</html>

Read the full file on GitHub · 107 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. 7d ago First seen · 107 lines · 723 tokens per session scan A 349f639941cf

Subscribe to this mod's changes

ableton-mcp-server CLAUDE.md is an instructions file published in the GitHub repository ju5tinz/ableton-mcp-server (1 stars, last pushed 18d ago), licensed MIT. It adds 723 tokens to every session, about $0.0036 per session on Opus 5. A static security scan graded it A with 0 findings. It is 88% identical to claude-peers-mcp CLAUDE.md, differing in 35 lines, and is treated as a copy.

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