youtube-music-cli-mcp-fork: Instructions file for Claude Code

CLAUDE.md

youtube-music-cli-mcp-fork CLAUDE.md is an instructions file for Claude Code from Builderstar/youtube-music-cli-mcp-fork. It costs 1,061 tokens per session, scanned A, original, MIT.

A Claude Code guide for a terminal-based YouTube Music player built with React and TypeScript. It records the project commands, quality checks, testing workflow, and architecture.

In plain words
What is it for?
Use it when editing the player, running formatting or linting, checking types, testing, or locating its CLI entry point and core components.
Why use it?
It gives Claude the project-specific instructions needed to make changes that fit the existing codebase and build process.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md; mentions Claude Code.

This is Builderstar/youtube-music-cli-mcp-fork's own configuration. It tells Claude Code how to work on youtube-music-cli-mcp-fork 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 youtube-music-cli-mcp-fork configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Builderstar/youtube-music-cli-mcp-fork. 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/Builderstar/youtube-music-cli-mcp-fork/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/Builderstar/youtube-music-cli-mcp-fork

Made for: Claude Code.

Wrote this? Show the measurements

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README.md
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Per session 1,061 This file is loaded in full into every session.
When invoked 1,061 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 $0.01061 $0.01061
Opus 5 $0.00531 $0.00531
Sonnet 5 $0.00212 $0.00212
Haiku 4.5 $0.00106 $0.00106

Measured 7d ago against content hash 218b6854ad63, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

youtube-music-cli-mcp-fork 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.

CLAUDE.md · 113 lines

How it starts

The opening of the file, as written. The whole thing — 113 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.

Project Overview

@involvex/youtube-music-cli is a terminal-based music player for YouTube Music, built with React and TypeScript using Ink for terminal UI rendering. It provides a full-featured CLI music player with search, playback controls, queue management, and multiple UI themes.

Commands

Development

bun run dev          # TypeScript watch mode
bun run build        # Compile TypeScript to dist/
bun run start        # Run compiled CLI (dist/source/cli.js)

Code Quality

bun run format       # Format code with Prettier
bun run format:check # Check formatting without modifying
bun run lint         # Lint code with ESLint
bun run lint:fix     # Fix linting issues automatically
bun run typecheck    # Type check without emitting

Testing

bun run test         # Run prettier check + XO + AVA

The prebuild script automatically runs formatlint:fixtypecheck before building.

Architecture

Entry Points

  • CLI Entry: source/cli.tsx - Parses CLI arguments with meow, handles direct commands (play, search, playlist)
  • App Root: source/app.tsxsource/main.tsx - Root React component
  • Compiled Binary: dist/source/cli.js (set as bin in package.json)

State Management Pattern

The codebase uses a custom store pattern built on React Context + useReducer:

  • source/stores/player.store.tsx: Core player state (playback, queue, volume, shuffle/repeat). Exports PlayerProvider and usePlayer() hook. State transitions happen through action categories (PLAY, PAUSE, NEXT, SEEK, etc.)
  • source/stores/favorites.store.tsx: Favorite tracks state management.
  • source/stores/navigation.store.tsx: View navigation state
  • source/contexts/theme.context.tsx: Theme management, exports ThemeProvider and useTheme() hook

Important: All stores follow the same pattern - Provider component wraps children, custom hook throws if used outside provider.

Read the full file on GitHub · 113 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 · 113 lines · 1,061 tokens per session scan A 218b6854ad63

Subscribe to this mod's changes

youtube-music-cli-mcp-fork CLAUDE.md is an instructions file published in the GitHub repository Builderstar/youtube-music-cli-mcp-fork (0 stars, last pushed 15d ago), licensed MIT. It adds 1,061 tokens to every session, about $0.0053 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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