youtube-transcript
Extract transcripts from YouTube videos. Use when the user asks for a transcript, subtitles, or captions and provides a YouTube URL or 11-character video ID. Supports plain text, timestamped output, language selection, and writing directly to a file.
What this skill does
# YouTube Transcript Fetch auto-generated or manually-uploaded captions from a YouTube video via the `youtube-transcript-api` library (run via `uv run --script`). ## Usage ```bash # Plain transcript to stdout scripts/get_transcript.py "<URL_OR_VIDEO_ID>" # With timestamps scripts/get_transcript.py "<URL_OR_VIDEO_ID>" --timestamps # Specific language (falls back to default if unavailable) scripts/get_transcript.py "<URL_OR_VIDEO_ID>" --lang en # Write directly to a file scripts/get_transcript.py "<URL_OR_VIDEO_ID>" -o transcript.txt ``` If the user doesn't specify a filename, either print to stdout or save as `<VIDEO_ID>-transcript.txt` using `-o`. ## Supported URL Formats - `https://www.youtube.com/watch?v=VIDEO_ID` - `https://youtu.be/VIDEO_ID` - `https://youtube.com/embed/VIDEO_ID` - `https://youtube.com/shorts/VIDEO_ID` - Raw 11-character video ID ## Output Format - **Plain** (default): one line per caption segment. - **Timestamped** (`--timestamps`): `[MM:SS] text` (or `[HH:MM:SS]` for long videos). ## Handling the Transcript - **Never modify the returned transcript content.** Do not paraphrase, summarize, or correct. The raw transcript is the source of truth. - **For plain output**, you MAY reflow lines into paragraphs so sentences aren't cut mid-clause. This is cosmetic only — do not change words. - **For timestamped output**, preserve the one-segment-per-line structure; do not reflow. ## When Captions Aren't Available The script errors out when a video has no captions at all. Pass that error back to the user — do not fabricate a transcript. ## Prerequisites - `uv` — installs the Python dependencies in an ephemeral venv at invocation time. Install with `curl -LsSf https://astral.sh/uv/install.sh | sh` or `pip install uv`. - Network access to `youtube.com` (the script calls the public timedtext endpoint directly).
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