What is mcp-music-forge CLAUDE.md?

Project instructions for mcp-music-forge, a FastAPI and worker application that downloads YouTube and SoundCloud audio as MP3 files through a Telegram bot.

Running, migrating, troubleshooting, and deploying the music downloader and its background workers.

It records the project's server layout, dependencies, security concerns, and production commands so maintenance work follows the actual deployment setup.

How jojoprison/mcp-music-forge configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to jojoprison/mcp-music-forge. 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/jojoprison/mcp-music-forge/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/jojoprison/mcp-music-forge

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/jojoprison/mcp-music-forge/claude-md/github.svg)](https://agentmods.dev/instructions/jojoprison/mcp-music-forge/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/jojoprison/mcp-music-forge/claude-md"><img src="https://agentmods.dev/badge/instructions/jojoprison/mcp-music-forge/claude-md/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/jojoprison/mcp-music-forge/claude-md"><img src="https://agentmods.dev/badge/instructions/jojoprison/mcp-music-forge/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 1,055 This file is loaded in full into every session.

When invoked 1,055 The same file — it is already loaded in full.

Security scan B 1 finding. 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.

Model	Per session	Once invoked
Fable 5.1	$0.01055	$0.01055
Opus 5	$0.00528	$0.00528
Sonnet 5	$0.00211	$0.00211
Haiku 4.5	$0.00105	$0.00105

Measured 9d ago against content hash 8170109db2ca, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade B, and why

mcp-music-forge CLAUDE.md scanned grade B with 1 finding 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 9d 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.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

на проде `data/secret/youtube_cookies.txt` — gitignored, `chmod 600`) + **PO-token** от `pot-provider` + **EJS-солвер** challenge'ей.

CLAUDE.md · 47 lines

How it starts

The opening of the file, as written. The whole thing — 47 lines — stays where its author put it; the contents beside it link to each section on GitHub.

mcp-music-forge

FastAPI + arq worker. YouTube/SoundCloud → mp3 downloader. Telegram-бот @yt_sc_mp3_downloader_bot (bot id 8224583085) поллится ВНУТРИ api-процесса (не отдельный контейнер) — поэтому при миграции легко проглядеть; два инстанса дают 409.

Сервер

Живёт на сервере coco (Hetzner Singapore, ssh coco → 5.223.47.40, root), каталог /root/mcp-music-forge. Переехал 2026-05-31 с изъятого THE.Hosting. (tg/tg-2 — это ДРУГОЙ сервер, ThorGash; не сюда.)

Запуск (prod)

ssh coco
cd /root/mcp-music-forge
docker compose -f docker-compose.prod.yml up -d --build api worker pot-provider

pot-provider — sidecar bgutil, выдаёт YouTube proof-of-origin токены на 127.0.0.1:4416; без него YouTube отвечает 403 на медиапоток с датацентрового адреса.
network_mode: host; нужен host-redis на 127.0.0.1:6379 (контейнер mf-redis в host-сети: docker run -d --name mf-redis --network host --restart unless-stopped redis:7-alpine).
БД — sqlite ./data/db.sqlite3; env — .env.prod. Публичного домена нет (внутренний/MCP).
🛑 API слушает только loopback (API_HOST=127.0.0.1): у /admin нет пароля, а POST /download без токена. Снаружи — через туннель: ssh -N -L 8033:127.0.0.1:8033 coco, дальше localhost:8033.

YouTube: что держит загрузки живыми

Три вещи одновременно, снятие любой ломает всё: cookies (путь в YOUTUBE_COOKIE_FILE, на проде data/secret/youtube_cookies.txt — gitignored, chmod 600) + PO-token от pot-provider + EJS-солвер challenge'ей.

🛑 Cookies выгружать из простаивающего профиля Chrome. Выгрузка из активного протухает в тот же день: браузер ротирует сессию и аннулирует копию. Признак протухания видно только в предупреждении yt-dlp (cookies are no longer valid), в тексте ошибки его нет.
🛑 player_client — ["tv_simply", "default"], default удалять нельзя: tv_simply не поддерживает cookies и молча пропускается, оставшись один — «Requested format is not available».
Полный разбор трёх разных отказов YouTube (403 / бот-челлендж / протухшие куки) — docs/research/.

Read the full file on GitHub · 47 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.

9d ago First seen · 47 lines · 1,055 tokens per session scan B 8170109db2ca

Subscribe to this mod's changes

mcp-music-forge CLAUDE.md is an instructions file published in the GitHub repository jojoprison/mcp-music-forge (5 stars, last pushed 10d ago), licensed MIT. It adds 1,055 tokens to every session, about $0.0053 per session on Opus 5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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mcp-music-forge: Instructions file for Claude Code