What is YouTube-MCP AGENTS.md?

Development instructions for coding agents working on YouTube-MCP, a local server that connects an agent to YouTube. They define the project’s mission, current status, technical choices, and safety rules.

Building the server in TypeScript, following the planned phases, testing completed behavior, and keeping the project documentation accurate.

They tell contributors what is approved, what is unfinished, and which security decisions must not be weakened.

How CreatorGeetansh/YouTube-MCP configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to CreatorGeetansh/YouTube-MCP. 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/CreatorGeetansh/YouTube-MCP/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/CreatorGeetansh/YouTube-MCP

Made for: Codex, OpenCode.

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/creatorgeetansh/youtube-mcp/agents-md/github.svg)](https://agentmods.dev/instructions/creatorgeetansh/youtube-mcp/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/creatorgeetansh/youtube-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/creatorgeetansh/youtube-mcp/agents-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/creatorgeetansh/youtube-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/creatorgeetansh/youtube-mcp/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 3,240 This file is loaded in full into every session.

When invoked 3,240 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.

Model	Per session	Once invoked
Fable 5.1	$0.03240	$0.03240
Opus 5.5	$0.01296	$0.01296
Sonnet 5.5	$0.00648	$0.00648
Haiku 4.5	$0.00324	$0.00324

Measured 2mo ago against content hash 40542fe6da4f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

YouTube-MCP AGENTS.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 2mo 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.

AGENTS.md · 282 lines

How it starts

The opening of the file, as written. The whole thing — 282 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Development Instructions for Coding Agents

This file is the binding development contract for this repository. It is written for Claude Code and applies to every agent or contributor working here. Read PLAN.md and README.md before changing implementation files.

Mission

Implement a secure, local-first, open-source YouTube MCP server whose central workflow turns a structured song list into a reviewed YouTube playlist. Also provide useful YouTube read tools and full playlist management, while refusing writes elsewhere in the user's account.

The architecture in PLAN.md is approved. Do not widen product scope or weaken its safety model without an explicit maintainer decision recorded in the plan and changelog.

Current state

The repository starts as documentation only. Do not claim commands, tools, releases, or integrations work until their phase gate passes. Keep the README's project-status checklist accurate in the same change that completes a milestone.

Non-negotiable decisions

TypeScript, ESM, strict mode, Node.js 20 or newer.
npm package: @youtube-mcp/server; binary: youtube-mcp.
Official MCP TypeScript SDK; local stdio only in v1.
Official YouTube Data API v3 and Google OAuth endpoints only.
Direct typed REST wrappers with an explicit host/endpoint/method/parameter allowlist.
Bring-your-own Desktop OAuth client. Never ship a shared client ID or secret.
Authorization Code + PKCE (S256), random state, and a random loopback port on 127.0.0.1.
API key preferred for public reads; OAuth for account reads and playlist writes.
One named profile per process, selected at startup.
Native keychain by default; no silent plaintext OAuth-token fallback.
SQLite plus an in-memory LRU; no Redis in v1.
Playlist-only writes, despite the broader Google OAuth scope.
Private-by-default new playlists.
Preview before commit and a hard limit of 50 track/item changes.
Exact-diff, expiring, one-time confirmation for destructive mutations.
No arbitrary URL fetch, generic Google API tool, captions scraping, or embedded LLM.
Logs go to stderr; MCP protocol data alone goes to stdout.
Apache-2.0 release intent.

Read the full file on GitHub · 282 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.

2mo ago First seen · 282 lines · 3,240 tokens per session scan A 40542fe6da4f

Subscribe to this mod's changes

YouTube-MCP AGENTS.md is an instructions file published in the GitHub repository CreatorGeetansh/YouTube-MCP (1 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 3,240 tokens to every session, about $0.0130 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 2026-08-31.

Building agents

YouTube-MCP AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
YouTube-MCP AGENTS.mdCreatorGeetansh/YouTube-MCP	Instructions file	1	2mo ago	Apache-2.0	A	3,240	Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	9,719	GitHub Copilot
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	5,516	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	yesterday	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	today	MIT	A	4,680	Codex, OpenCode
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	3,093	GitHub Copilot
vscode model-prompts.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	2,022	GitHub Copilot

YouTube-MCP: Instructions file for Codex