video-summarizer
🥈SilverDownload videos from YouTube, Bilibili, Twitter/X and 1800+ platforms. Outputs MP4, MP3, subtitles, transcript and AI summary - Claude Code skill
2100Updated 2mo ago
Intermediate30min to implementautomation
Saves ~20 min per use
Quick InstallView Source
git clone https://github.com/liang121/video-summarizer.gitWorks with:
Claude
Overview
About This Skill
Video Summarizer is a Claude Code skill that downloads videos from over 1800 platforms—including YouTube, Bilibili, Twitter/X, TikTok, Instagram, Twitch, and Vimeo—and automatically extracts key information. The skill uses faster-whisper for parallel transcription (4-5x faster than standard processing) and generates structured AI-powered summaries with timestamps and key points. It outputs complete resource packages including video (MP4), audio (MP3), subtitles (VTT), plain-text transcripts, and markdown summaries. Dependencies like yt-dlp and ffmpeg are auto-installed, making it accessible for users who need to quickly digest video content without manual setup.
How to Use
Install via Claude Code Plugin Market with `/plugin marketplace add liang121/video-summarizer` and `/plugin install video-summarizer@video-summarizer`. Use the skill by running `/video-summarizer <video-url>` or typing natural language like 'Summarize this video: [URL]'. Dependencies auto-install on first use, and all outputs save to `./downloads/<video-title>/` with video, audio, subtitles, transcript, and summary files.
Use Cases
Transcribe and summarize YouTube videos for research or note-taking
Extract audio and subtitles from Bilibili content
Convert Twitter/X video threads to text transcripts
Batch process multiple videos to generate markdown summaries
Setup & Installation
Quick Install
No install command available. Check the GitHub repository for manual installation instructions.
Alternative Install (Git Clone)
git clone https://github.com/liang121/video-summarizerRequirements
- Claude Code or compatible AI agent
- Works with: Claude
Quick Start Guide
1
Install the Skill
Copy the install command above and run it in your terminal.
2
Open Your AI Agent
Launch Claude Code, Cursor, or your preferred AI coding agent.
3
Try It Out
Use the prompt template or examples below to test the skill.
4
Customize
Adapt the skill to your specific use case and workflow.
Usage Examples
Prompt Template
Download the video titled '[VIDEO_TITLE]' from [PLATFORM] and generate a summary. Extract the transcript, subtitles, and save the audio as an MP3 file. Provide a concise AI summary of the key points in bullet form.
Example Output
# Video Summary: 'The Future of Renewable Energy' ## Key Points - **Solar Energy Advancements**: Breakthroughs in perovskite solar cells have increased efficiency by 25%. - **Wind Power Innovations**: Floating offshore wind farms are now viable, reducing land use concerns. - **Policy Impacts**: New government incentives are accelerating the adoption of renewable energy solutions. - **Market Trends**: Global investment in renewables reached $500 billion in 2023, up 15% from the previous year. ## Transcript and Subtitles - Full transcript and subtitles are available in the attached files. ## Audio File - The audio version of the video is saved as 'Future_of_Renewable_Energy.mp3'.
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