youtube

Use for anything YouTube: search by name or phrase, transcripts (single video, playlist, channel), audio extraction (WAV / MP3 / any ffmpeg format), clip trimming, channel listing, and LLM summarisation. Handles the "I only have an artist / topic name, find and download" flow by chaining `search` → `audio`. Fully integrated as `af youtube <subcommand>` — no external wrapper needed. Chains cleanly into `note-taker`, `knowledge-base`, and `test-taker`.