Skills（SKILL.md）は、AIエージェント（Claude Code、Cursor、Codexなど）に特定の能力を追加するための設定ファイルです。
詳しく見る →Turn YouTube videos into dependable markdown transcripts and polished summaries — even when caption coverage is messy. This skill works with manual closed captions (CC), auto-generated subtitles, or no usable subtitles at all by using subtitle-first extraction with local Whisper fallback. Supports private/restricted videos via cookies, batch processing, transcript cleanup, language backfill, source-language or user-selected summary language, and end-to-end completion reporting. Ideal for YouTube research, technical walkthroughs, founder content, tutorials, private/internal uploads, and batch video summarization workflows.