mcp-make-sound: Instructions file for Claude Code

CLAUDE.md

mcp-make-sound CLAUDE.md is an instructions file for Claude Code from nocoo/mcp-make-sound. It costs 448 tokens per session, scanned A, original, MIT.

Project instructions for an MCP server that makes sounds. They specify development checks such as ESLint for code style and Vitest for automated tests.

In plain words
What is it for?
Running the server, building it, checking TypeScript code, and running or fixing its unit tests.
Why use it?
They help contributors catch style problems and test failures before building or pushing changes.

Instructions file for Claude Code

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

This is nocoo/mcp-make-sound's own configuration. It tells Claude Code how to work on mcp-make-sound 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 mcp-make-sound configures →

Reuse

Borrowing it

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

Made for: Claude Code.

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Per session 448 This file is loaded in full into every session.
When invoked 448 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 $0.00448 $0.00448
Opus 5 $0.00224 $0.00224
Sonnet 5 $0.00090 $0.00090
Haiku 4.5 $0.00045 $0.00045

Measured 8d ago against content hash 39cb45c21993, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

mcp-make-sound 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.

CLAUDE.md · 67 lines

What it actually says

MCP Make Sound - Development Guide

Code Quality Standards

This project uses ESLint for code quality and Vitest for testing.

Before Any Push to GitHub

ALWAYS run these commands before pushing changes:

npm run lint        # Check for code style issues
npm run test:run    # Run all unit tests

Fix any linting errors or test failures before proceeding with git operations.

Available Commands

Code Quality
  • npm run lint - Check code style and errors
  • npm run lint:fix - Auto-fix linting issues where possible
Testing
  • npm run test - Run tests in watch mode (for development)
  • npm run test:run - Run all tests once (for CI/validation)
  • npm run test:ui - Run tests with interactive UI
Development
  • npm run build - Compile TypeScript
  • npm run start - Run the MCP server
  • npm run dev - Development mode with auto-reload
  • npm run kill - Stop all running MCP server instances

Project Structure

src/
├── index.ts              # Main MCP server implementation
└── __tests__/            # Unit tests
    └── sound.test.ts     # Sound system tests

Testing Guidelines

  • All core functionality should have unit tests
  • Tests use Vitest with mocked system calls (no actual sounds during testing)
  • Tests validate input validation, error handling, and command generation
  • Coverage includes system sounds, TTS, file playback, and edge cases

Linting Rules

  • TypeScript strict mode enabled
  • Explicit function return types required
  • No any types allowed (use proper TypeScript types)
  • No unused variables
  • Follows ES2022+ standards

Workflow

  1. Make changes to code
  2. Run npm run lint and fix any issues
  3. Run npm run test:run and ensure all tests pass
  4. Commit changes
  5. Push to GitHub

This ensures code quality and prevents breaking changes from being merged.

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. 8d ago First seen · 67 lines · 448 tokens per session scan A 39cb45c21993

Subscribe to this mod's changes

mcp-make-sound CLAUDE.md is an instructions file published in the GitHub repository nocoo/mcp-make-sound (1 stars, last pushed 4mo ago), licensed MIT. It adds 448 tokens to every session, about $0.0022 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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