Borrowing it
Nothing to install: this file belongs to JCodesMore/youtube-for-ai-agents. 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/JCodesMore/youtube-for-ai-agents/main/CLAUDE.mdgit clone --depth 1 https://github.com/JCodesMore/youtube-for-ai-agentsWrote 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/jcodesmore/youtube-for-ai-agents/claude-md)<a href="https://agentmods.dev/instructions/jcodesmore/youtube-for-ai-agents/claude-md"><img src="https://agentmods.dev/badge/instructions/jcodesmore/youtube-for-ai-agents/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/jcodesmore/youtube-for-ai-agents/claude-md"><img src="https://agentmods.dev/badge/instructions/jcodesmore/youtube-for-ai-agents/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 | $0.00906 | $0.00906 |
| Opus 5 | $0.00453 | $0.00453 |
| Sonnet 5 | $0.00181 | $0.00181 |
| Haiku 4.5 | $0.00091 | $0.00091 |
Grade A, and why
youtube-for-ai-agents 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 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.
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 — 76 lines — stays where its author put it; the contents beside it link to each section on GitHub.
YouTube for AI Agents
MCP plugin providing YouTube tools for AI coding agents. Supports Claude Code, Cursor, Codex, OpenCode, and Gemini CLI.
Architecture
src/index.ts — Entry point. Registers 6 MCP tools, connects via stdio transport.
src/config.ts — DEFAULTS object with all configurable settings and types.
src/tools/*.ts — Tool handlers. Each exports inputSchema (zod) + handler function.
src/lib/innertube.ts — Singleton YouTube API wrapper using youtubei.js.
src/lib/transcript.ts — Transcript fetching, HTML entity decoding, text cleanup.
src/lib/cookies.ts — Cookie load/save/validate/delete for auth.
src/lib/user-config.ts — User config overrides, deep merge with defaults.
Build
Always run npm run build after changing any file in src/. The compiled output goes to dist/ and is committed to git (required for plugin marketplace distribution).
npm run build # compile once
npm run dev # watch mode
Plugin Distribution
When installed via marketplace (git clone), the plugin needs:
dist/committed to git — Claude Code doesn't run build steps after cloning.SessionStarthook (scripts/ensure-deps.mjs) — auto-installs runtime dependencies into the plugin root (next todist/) on first session. Uses SHA-256 hash ofpackage.jsonto skip on subsequent sessions. Deps install intoCLAUDE_PLUGIN_ROOT(notCLAUDE_PLUGIN_DATA) becauseNODE_PATHdoes not work with ES modules — ESM resolution requiresnode_modulesin the directory tree above the importing file.
On every version bump: run npm run build, commit dist/, push to GitHub, run npm publish, and update the version in JCodesMore/jcodesmore-plugins marketplace.json. Git and npm must stay in sync.
Key Patterns
- Zod schemas define all tool inputs. Each tool file exports
fooInputSchemaandhandleFoo. - InnerTube singleton (
src/lib/innertube.ts) — lazy-initialized, tracks auth state (personalized vs anonymous). - getConfig() (
src/lib/user-config.ts) — merges user overrides from.config.jsonwithDEFAULTSfromconfig.ts. - All tools are read-only — annotated with
readOnlyHint: true,destructiveHint: false.
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 · 76 lines · 906 tokens per session scan A aa9eb65de2a1
youtube-for-ai-agents CLAUDE.md is an instructions file published in the GitHub repository JCodesMore/youtube-for-ai-agents (50 stars, last pushed 4mo ago), licensed Apache-2.0. It adds 906 tokens to every session, about $0.0045 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.
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