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.
curl -O https://raw.githubusercontent.com/Builderstar/youtube-music-cli-mcp-fork/main/.github/copilot-instructions.mdgit clone --depth 1 https://github.com/Builderstar/youtube-music-cli-mcp-forkWrote 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.
[](https://agentmods.dev/instructions/builderstar/youtube-music-cli-mcp-fork/copilot-instructions)<a href="https://agentmods.dev/instructions/builderstar/youtube-music-cli-mcp-fork/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/builderstar/youtube-music-cli-mcp-fork/copilot-instructions.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.01564 | $0.01564 |
| Opus 5 | $0.00782 | $0.00782 |
| Sonnet 5 | $0.00313 | $0.00313 |
| Haiku 4.5 | $0.00156 | $0.00156 |
Grade A, and why
youtube-music-cli-mcp-fork copilot-instructions.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 5d 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.
How it starts
The opening of the file, as written. The whole thing — 168 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Copilot Instructions for youtube-music-cli
Quick Start
This is a Terminal User Interface (TUI) music player for YouTube Music, built with React and TypeScript using Ink for terminal rendering.
Key Commands:
bun run dev # Start in watch mode (TypeScript compilation)
bun run build # Compile TypeScript to dist/
bun run start # Run compiled CLI binary
bun run lint:fix # Fix linting and formatting issues
bun run test # Run full test suite (formatting + linting + tests)
Architecture Overview
Entry Points
- CLI Entry:
source/cli.tsx- Parses CLI arguments withmeow, handles direct commands (play,search,playlist) - App Root:
source/app.tsx→source/main.tsx- Root React component that sets up providers - Compiled Binary:
dist/source/cli.js(referenced in package.jsonbinfield)
Core Layers
State Management (all follow the same pattern: Provider + useHook):
source/stores/player.store.tsx- Player state (playback, queue, volume, shuffle/repeat) with action-based reducerssource/stores/navigation.store.tsx- View navigation statesource/contexts/theme.context.tsx- Theme management
Services (abstraction over external dependencies):
source/services/youtube-music/- Wrapper aroundnode-youtube-musicAPI for search and track lookupsource/services/player/- Audio playback viaplay-soundsource/services/config/- Configuration persistence (theme, volume settings)
Components (organized by feature, use Ink primitives: Box, Text, etc.):
source/components/
├── layouts/ # Main UI containers (PlayerLayout, SearchLayout, etc.)
├── player/ # Player-specific UI (PlayerControls, QueueList, etc.)
├── search/ # Search UI (SearchBar, SearchResults)
├── playlist/ # Playlist management UI
├── theme/ # Theme switching UI
└── common/ # Shared components (Help, ErrorBoundary, etc.)
Types (core domain models):
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.
- 5d ago First seen · 168 lines · 1,564 tokens per session scan A 99c07e2dbae4
youtube-music-cli-mcp-fork copilot-instructions.md is an instructions file published in the GitHub repository Builderstar/youtube-music-cli-mcp-fork (0 stars, last pushed 13d ago), licensed MIT. It adds 1,564 tokens to every session, about $0.0078 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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