Youtube Transcript Local

通過本地 yt-dlp 提取 YouTube 視頻多語言字幕，無需外部API，支持自動生成字幕和離線安全使用。

This skill appears to do what it claims: locally fetch YouTube subtitles using yt-dlp and optionally use local STT/OCR fallbacks. Before installing/running: 1) Be aware extract.py will try to 'pip install yt-dlp' automatically if yt-dlp is not present — that triggers a network install from PyPI. If you prefer, pre-install yt-dlp and any optional tools (ffmpeg, Whisper, tesseract) in a virtualenv or container. 2) The tool needs network access to YouTube and will write files into the current working directory (creates ./transcripts and ./.cache) — run it in a directory you control. 3) The code is simple and uses subprocess.run without shell=True (safer), but you should still review or run it in an isolated environment if you don't trust the package source. 4) If you want stricter guarantees, clone the referenced GitHub repo yourself, inspect code locally, and install dependencies explicitly rather than relying on runtime pip installs.