MediaGo is a cross-platform application for finding and downloading online video streams, including m3u8/HLS media and videos from services such as YouTube and Bilibili. It is for people and automated tools that need to save videos through a desktop app, Docker, browser extension, or HTTP API. The catalogue entries let coding agents operate MediaGo to create downloads and check their progress.
Borrowing it
Nothing to install: this file belongs to mediago-dev/mediago. 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/mediago-dev/mediago/master/CLAUDE.mdgit clone --depth 1 https://github.com/mediago-dev/mediagoWrote 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/mediago-dev/mediago/claude-md)<a href="https://agentmods.dev/instructions/mediago-dev/mediago/claude-md"><img src="https://agentmods.dev/badge/instructions/mediago-dev/mediago/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.
<a href="https://agentmods.dev/instructions/mediago-dev/mediago/claude-md"><img src="https://agentmods.dev/badge/instructions/mediago-dev/mediago/claude-md.svg" alt="Reviewed on agentmods" width="80" 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 | $0.01485 | $0.01485 |
| Opus 5.5 | $0.00594 | $0.00594 |
| Sonnet 5.5 | $0.00297 | $0.00297 |
| Haiku 4.5 | $0.00148 | $0.00148 |
Grade A, and why
mediago 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 1mo 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 — 102 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
MediaGo is a cross-platform video downloader supporting m3u8/HLS streams. The codebase is a pnpm monorepo with two delivery products:
- Desktop app (
apps/electron+apps/ui) — Electron wrapper that launches Go Core as a subprocess - Docker Web app (
apps/core+apps/ui) — Docker runs Go Core directly; the main UI is embedded in the Core binary
The Player UI (apps/player-ui) is also embedded in every Core binary. Electron Core serves /player/ but suppresses the embedded main UI because Electron owns the main renderer.
Documentation Site Safety
docs/ is the production VitePress source directory. Everything placed there can be packaged and deployed to the public documentation site.
- Never create agent planning or working artifacts anywhere under
docs/. This includesdocs/plans/,docs/superpowers/, design or implementation plans, audit reports, task logs, handoff notes, scratch Markdown, generated prompts, and session notes. - Only add or edit files under
docs/when they are intentional public documentation, documentation assets, VitePress source/configuration, or tests required for the documentation site. - Store persistent internal planning artifacts under
.agents/plans/. Store disposable artifacts in the system temporary directory. - This rule overrides any skill, tool, or template that defaults to writing plans under
docs/ordocs/plans/. - Before finishing a task that touches documentation, inspect
git status --short -- docsand remove accidental internal artifacts without deleting legitimate documentation content.
Common Commands
pnpm install # Install all dependencies (run once per clone)
task dev:electron # Start Electron desktop dev environment (HMR)
task dev:web # Start Web Core directly plus the Vite UI
task build:electron # Production build for Electron
task build:docker # Build the deployable Web image
pnpm core:dev # Start Go Core dev server (port 9900)
pnpm core:build # Compile Go Core binary
pnpm player:dev # Start Player dev (alias for core:dev)
pnpm player:build # Build Player (alias for core:build)
pnpm deps:download # Download third-party tools (ffmpeg, BBDown, etc.)
pnpm deps:download:all # Download tools for all platforms
pnpm lint # Lint with oxlint
pnpm lint:fix # Auto-fix lint issues
pnpm format # Format with oxfmt
pnpm format:check # Check formatting without modifying
pnpm check # Full check: lint + format + type check
pnpm type:check # TypeScript type checking via Turborepo
pnpm pack:electron # Build + package Electron distributable
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.
- 1mo ago First seen · 102 lines · 1,485 tokens per session scan A 455f01ccaadc
mediago CLAUDE.md is an instructions file published in the GitHub repository mediago-dev/mediago (9,275 stars, last pushed today), licensed MIT. It adds 1,485 tokens to every session, about $0.0059 per session on Opus 5.5. 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 2026-08-30.
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