Burn karaoke-style word-highlight subtitles (CapCut/reels style) onto videos in any language — batch-capable, style and pacing fully configurable, with mechanical + visual QA so results ship clean. Use this skill whenever the user wants to subtitle videos, add captions, burn subs, localize video captions, copy a subtitle style from a reference video, karaoke captions, word-by-word highlighted text on video, or batch-caption a folder of videos — even if they just say "add subs to these videos" or point at a folder of mp4s in different languages.