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video-watcher

// Fetch and read transcripts from YouTube and Bilibili videos. Use when you need to summarize a video, answer questions about its content, or extract information from it.

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stars:1,933
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updated:March 4, 2026
SKILL.mdreadonly
SKILL.md Frontmatter
namevideo-watcher
descriptionFetch and read transcripts from YouTube and Bilibili videos. Use when you need to summarize a video, answer questions about its content, or extract information from it.
authoradapted from youtube-watcher
version1.1.0
triggerswatch video,summarize video,video transcript,youtube summary,bilibili summary,analyze video
metadata[object Object]

Video Watcher

Fetch transcripts from YouTube and Bilibili videos to enable summarization, QA, and content extraction.

Supported Platforms

  • ✅ YouTube (youtube.com, youtu.be)
  • ✅ Bilibili (bilibili.com, b23.tv)

Usage

Get Transcript (Auto-detect Platform)

python3 {baseDir}/scripts/get_transcript.py "VIDEO_URL"

Specify Language

python3 {baseDir}/scripts/get_transcript.py "VIDEO_URL" --lang zh-CN

Examples

YouTube Video

python3 {baseDir}/scripts/get_transcript.py "https://www.youtube.com/watch?v=dQw4w9WgXcQ"

Bilibili Video

python3 {baseDir}/scripts/get_transcript.py "https://www.bilibili.com/video/BV1xx411c7mD"

With Custom Language

# Get English subtitles for a Bilibili video
python3 {baseDir}/scripts/get_transcript.py "https://bilibili.com/video/..." --lang en

# Get Chinese subtitles for a YouTube video
python3 {baseDir}/scripts/get_transcript.py "https://youtube.com/watch?v=..." --lang zh-CN

Default Languages

PlatformDefault Language
YouTubeen (English)
Bilibilizh-CN (Chinese)

Common Language Codes

  • en - English
  • zh-CN - Simplified Chinese (简体中文)
  • zh-TW - Traditional Chinese (繁體中文)
  • ja - Japanese
  • ko - Korean
  • es - Spanish
  • fr - French
  • de - German

Notes

  • Requires yt-dlp to be installed and available in PATH
  • Works with videos that have closed captions (CC) or auto-generated subtitles
  • Automatically detects platform from URL
  • If no subtitles available, the script will fail with an error message
  • yt-dlp natively supports both YouTube and Bilibili