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.
Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add instructions/mediago-dev/mediago/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.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 | $0.01485 | $0.01485 |
| Opus 5 | $0.00743 | $0.00743 |
| Sonnet 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 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 — 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.
- 5d 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 (9,206 stars, last pushed yesterday), licensed MIT. It adds 1,485 tokens to every session, about $0.0074 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 2026-08-30.
Other instructions, from other repositories
zahori AGENTS.md
AGENTS.md instructions for josesepulvedapino/zahori, covering zahori: guide for coding agents, commands, design rules (do not break) and layout.
media-downloader AGENTS.md
Instructions for Knuckles-Team/media-downloader, covering agents.md, tech stack & architecture, architecture diagram, workflow diagram and commands (run these exactly).
media-downloader CLAUDE.md
Instructions for Knuckles-Team/media-downloader: Guidance for Claude Code (claude.ai/code) when working in this repository.
vscode tree-widgets.instructions.md
Use when asked to consume workbench tree widgets in VS Code.
vscode accessibility.instructions.md
Use when implementing accessibility features, ARIA labels, screen reader support, accessible help dialogs, or keybinding scoping for accessibility. Covers AccessibleContentProvider, CONTEXTACCESSIBILITYMODEENABLED, verbosity settings, and announcement patterns.
vscode writing-tests.instructions.md
VS Code test writing guidelines — unit tests, integration tests, snapshot tests, and clean teardown patterns. Reference when writing or updating tests.