Intelligent YouTube video clipper with AI-powered chapter analysis, subtitle translation, and batch processing.

• Downloads videos and English subtitles, then uses Claude to generate fine-grained chapters (2–5 minute segments) by analyzing subtitle semantics and identifying natural topic transitions
• Supports bilingual subtitle generation (English + Chinese), subtitle burning to video with styled overlays, and social media summary generation for each clip
• Handles environment detection for yt-dlp, FFmpeg with libass support, and Python dependencies; provides clear installation guidance if tools are missing
• Optimizes subtitle translation with batch processing (20 subtitles per API call) to reduce costs by 95% while maintaining consistency and accuracy
• Organizes output into per-chapter directories with multiple file formats: raw clips, hardcoded subtitle versions, SRT files, and markdown summaries