Generates a karaoke-style animated .ass subtitle file from a trimmed Whisper transcript JSON or .srt file, ready to burn into a YouTube Short with ffmpeg. Use this skill whenever the user uploads a trimmed/edited Whisper JSON or SRT for a Short clip and wants animated subtitles with word-level highlighting. Triggers on phrases like "generate the ass file", "make subtitles for this clip", "create the subtitle file", "burn in subtitles", or when a short clip Whisper JSON or .srt is uploaded after editing. Works for any channel — not CDJ-specific. Always use this skill rather than generating ad-hoc subtitle code.
