What problem does it solve? Manually watching long YouTube videos to capture key points is time-consuming, and repurposing video content into written formats requires tedious transcription work. This Skill fetches video transcripts programmatically and transforms them into structured written content. ## Core Features & Use Cases - Transcript Extraction: Fetch transcripts from any YouTube URL format (watch links, youtu.be short links, shorts, embeds, live links, or raw video IDs) with language fallback support. - Multiple Output Formats: Convert transcripts into timestamped chapters, concise summaries, chapter summaries, Twitter/X threads, blog posts, or notable quotes. - Long Video Handling: Automatically chunk transcripts exceeding ~50K characters with overlapping segments, summarize each chunk, and merge results. - Use Case: A user shares a 45-minute conference talk link and asks for a summary and a Twitter thread. The Skill fetches the transcript with timestamps, generates a chapter list, and produces a numbered thread with posts under 280 characters. ## Quick Start Summarize this YouTube video and give me a timestamped chapter list: https://youtube.com/watch?v=VIDEO_ID