Air000000

extract subtitles and transcribe audio from bilibili videos for structured summarization. use when the user provides a bilibili.com video url, bv id, or asks to summarize, extract, organize, outline, or analyze a b站/bilibili video. prefer official subtitles first, then fall back to authenticated audio download and whisper transcription when subtitles are unavailable.

Maintain a reusable engineering error notebook with explicit write gating, mechanism-first category routing, dedupe, and selective retrieval. Use when a bug is fixed, a stable workaround succeeds, a regression recurs, or troubleshooting knowledge should be written back for future reuse.