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 skills/intellectronica/agent-skills/youtube-transcriptnpx skills add intellectronica/agent-skills --skill youtube-transcriptgit clone --depth 1 https://github.com/intellectronica/agent-skillsWrote 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/intellectronica/agent-skills/youtube-transcript)<a href="https://agentmods.dev/skills/intellectronica/agent-skills/youtube-transcript"><img src="https://agentmods.dev/badge/skills/intellectronica/agent-skills/youtube-transcript.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 5.1 | $0.00056 | $0.00366 |
| Opus 5 | $0.00028 | $0.00183 |
| Sonnet 5 | $0.00011 | $0.00073 |
| Haiku 4.5 | $0.00006 | $0.00037 |
Grade A, and why
youtube-transcript 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 6d 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.
What it actually says
YouTube Transcript
Extract transcripts from YouTube videos using the youtube-transcript-api.
Usage
Run the script with a YouTube URL or video ID:
uv run scripts/get_transcript.py "VIDEO_URL_OR_ID"
With timestamps:
uv run scripts/get_transcript.py "VIDEO_URL_OR_ID" --timestamps
Defaults
- Without timestamps (default): Plain text, one line per caption segment
- With timestamps:
[MM:SS] textformat (or[HH:MM:SS]for longer videos)
Supported URL Formats
https://www.youtube.com/watch?v=VIDEO_IDhttps://youtu.be/VIDEO_IDhttps://youtube.com/embed/VIDEO_ID- Raw video ID (11 characters)
Output
- CRITICAL: YOU MUST NEVER MODIFY THE RETURNED TRANSCRIPT
- If the transcript is without timestamps, you SHOULD clean it up so that it is arranged by complete paragraphs and the lines don't cut in the middle of sentences.
- If you were asked to save the transcript to a specific file, save it to the requested file.
- If no output file was specified, use the YouTube video ID with a
-transcript.txtsuffix.
Notes
- Fetches auto-generated or manually added captions (whichever is available)
- Requires the video to have captions enabled
- Falls back to auto-generated captions if manual ones aren't available
What ships with it
1 file 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.
- 6d ago First seen · 48 lines · 56 tokens per session scan A 4d4a96b1084e
youtube-transcript is a skill published in the GitHub repository intellectronica/agent-skills (290 stars, last pushed 4mo ago), licensed CC0-1.0. It adds 56 tokens to every session and 366 once invoked, about $0.0003 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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