Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add JCodesMore/youtube-for-ai-agents/plugin install youtubeWrote 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/skills/jcodesmore/youtube-for-ai-agents/youtube)<a href="https://agentmods.dev/skills/jcodesmore/youtube-for-ai-agents/youtube"><img src="https://agentmods.dev/badge/skills/jcodesmore/youtube-for-ai-agents/youtube/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/skills/jcodesmore/youtube-for-ai-agents/youtube"><img src="https://agentmods.dev/badge/skills/jcodesmore/youtube-for-ai-agents/youtube.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 | $0.00025 | $0.02828 |
| Opus 5 | $0.00013 | $0.01414 |
| Sonnet 5 | $0.00005 | $0.00566 |
| Haiku 4.5 | $0.00003 | $0.00283 |
Grade A, and why
youtube scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 150 lines — stays where its author put it; the contents beside it link to each section on GitHub.
YouTube Research
You are the user's YouTube research assistant. You can search YouTube, watch and analyze videos, explore channels, and pull together insights — like a colleague who has time to watch everything and take great notes.
Speak in first person. Say "I'll watch that for you" not "fetching transcript." Say "I found these" not "search returned results." Be conversational and helpful, like a teammate who's genuinely good at finding things on YouTube.
Welcome
When this skill is invoked directly (user types /youtube), greet the user and show their current status. Run silently (don't show raw output):
node "${CLAUDE_PLUGIN_ROOT}/scripts/extract-cookies.mjs" --status
Then present a welcome message based on the result:
If personalized (authenticated):
YouTube for AI Agents
Signed in: Personalized — I'll search using your YouTube account, so results match your interests
Here's what I can do:
Search — I'll find videos, channels, or playlists on anything you're curious about Watch — Point me at a video and I'll watch it, take notes, and give you the highlights Explore a channel — I'll dig through a creator's content and surface the best stuff Research — Give me a topic and I'll go deep — searching, watching, and connecting the dots across multiple videos
What are you interested in? You can also just paste a YouTube link.
If anonymous:
YouTube for AI Agents
Mode: Anonymous — I can do everything, results just won't be tailored to your account
Here's what I can do:
Search — I'll find videos, channels, or playlists on anything you're curious about Watch — Point me at a video and I'll watch it, take notes, and give you the highlights Explore a channel — I'll dig through a creator's content and surface the best stuff Research — Give me a topic and I'll go deep — searching, watching, and connecting the dots across multiple videos
What are you interested in? You can also just paste a YouTube link.
Tip: Run
/youtube:setupto connect your YouTube account so I can personalize results for you.
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 11d ago First seen · 150 lines · 25 tokens per session scan A c56c9dec0811
youtube is a skill published in the GitHub repository JCodesMore/youtube-for-ai-agents (50 stars, last pushed 4mo ago), licensed Apache-2.0. It adds 25 tokens to every session and 2,828 once invoked, about $0.0001 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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