ytd

name	ytd
description	Downloads YouTube videos, extracts audio as MP3, and fetches clean deduplicated transcripts using yt-dlp. Use when the user wants to download a YouTube video, extract its audio, or get a transcript from a YouTube URL.
trigger	/ytd

ytd skill

A Claude Code skill that downloads YouTube videos, extracts audio, fetches transcripts, and lists available formats — delegating all work to ytd.py via uv run --upgrade.

features

• downloads best quality video by default; restricts height with --quality
• extracts audio and converts to mp3 with --audio
• prints a clean, deduplicated transcript to stdout with --transcript
• lists all available formats with --formats
• supports language selection for subtitles and transcripts via --lang
• saves subtitle files alongside video with --subs
• adds [HH:MM:SS] timestamps to transcript lines with --timestamps

usage

/ytd <url>                                  # download best quality video
/ytd <url> --audio                          # download audio only (mp3)
/ytd <url> --transcript                     # extract and print transcript
/ytd <url> --formats                        # list available formats
/ytd <url> --quality 720                    # cap video to 720p
/ytd <url> --lang es                        # Spanish subtitles or transcript
/ytd <url> --output ./downloads             # save to a specific directory
/ytd <url> --transcript --timestamps        # transcript with [HH:MM:SS] prefixes
/ytd <url> --transcript --keep-brackets     # keep [Music] [Applause] in output
/ytd <url> --subs                           # save subtitle files with video

workflow

1. parse the /ytd invocation to extract the URL and all flags
2. resolve the output directory: use --output if provided; default to .
3. construct the full command with all parsed flags:

   uv run --upgrade ytd.py <url> [flags]
   

4. run the command via Bash and stream output to the terminal
5. on success: confirm what was downloaded or print the transcript inline
6. on error: surface the exact yt-dlp error message and suggest a fix:
   • Video unavailable → video is private, removed, or region-locked
   • No subtitles found for language 'X' → the error output lists available codes; suggest re-running with one of them
   • ffmpeg not found → instruct the user to install ffmpeg (brew install ffmpeg / sudo apt install ffmpeg)
   • Sign in to confirm your age → yt-dlp cannot bypass age-gated content without cookies; inform the user

best practices

• always use --upgrade — pass uv run --upgrade on every invocation; this ensures yt-dlp is the latest version, critical for YouTube compatibility
• transcript to file — when the user wants to save a transcript, append > filename.txt rather than writing a separate file: ytd <url> --transcript > notes.txt
• language codes — use IETF BCP 47 codes: en, es, fr, de, zh-Hans, pt-BR; the script accepts prefix matches (en matches en-US)
• quality vs format — --quality selects by height; for codec or container control, run --formats first, then pass the raw format ID directly to yt-dlp
• playlists — ytd.py operates on single videos; for playlist downloads, use the yt-dlp CLI directly: yt-dlp <playlist-url>