Internationalize YouTube video metadata for dubbed uploads. Use when given a language and a video description to produce localized title, description, and audio extraction. Triggers on "internationalize", "dub metadata", "localize metadata", or /internationalize-metadata.
Takes an original English YouTube video description + a target language and produces ready-to-paste metadata for the dubbed version upload.
The user provides:
{Original Title Core} - {Language} Dub ({Year})Claude Code Full Course 4 Hours - Hindi Dub (2026)Structure:
{flag emoji} {Language} dubbed version of the original {Video Title}!
{film emoji} Original (English): {original video URL}
{rest of original description — keep ALL links, affiliate codes, chapters, etc. unchanged}
Rules:
ffmpeg -y -i "{input}.mp4" -vn -acodec aac -b:a 192k "{output}.m4a"
YouTube's "Add audio track" feature for multi-language dubs expects audio-only files (M4A/MP3).
Present the title and description as copy/paste blocks using code fences, plus confirm the audio file path if extracted.