Agent-Skills.md

Agent Skills: YouTube Transcript Summarizer

Extract YouTube video transcripts and generate AI-powered summaries in any language. Converts videos to structured markdown documents with summaries, key points, and timelines.

UncategorizedID: jykim/ai4pkm-vault/youtube-transcript-summarizer

Repository

jykim/ai4pkm-vault
jykim
33

Install this agent skill to your local

pnpm dlx add-skill https://github.com/jykim/ai4pkm-vault/tree/HEAD/_Settings_/Skills/youtube-transcript-summarizer

Skill Files

Browse the full folder contents for youtube-transcript-summarizer.

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_Settings_/Skills/youtube-transcript-summarizer/SKILL.md

Skill Metadata

Name
youtube-transcript-summarizer
Description
Extract YouTube video transcripts and generate AI-powered summaries in any language. Converts videos to structured markdown documents with summaries, key points, and timelines.

YouTube Transcript Summarizer

Extract transcripts from YouTube videos and generate AI-powered summaries. Supports any source language and can output summaries in your preferred language.

Requirements

pip install -r requirements.txt
# or: pip install youtube-transcript-api anthropic
  • ANTHROPIC_API_KEY env var required for AI summarization
  • yt-dlp (optional) for automatic video title fetching
  • Python 3.7+

Cost depends on transcript length and current Claude API pricing.

Usage

# Single video (default: English -> Korean)
python youtube_transcript_summarizer.py "https://www.youtube.com/watch?v=VIDEO_ID"

# Transcript only (no AI summary)
python youtube_transcript_summarizer.py "VIDEO_URL" --no-summary

# Japanese video with English summary
python youtube_transcript_summarizer.py "VIDEO_URL" --source-lang ja --target-lang en

# Auto-detect source language
python youtube_transcript_summarizer.py "VIDEO_URL" --source-lang auto --target-lang fr

# Batch processing
python youtube_transcript_summarizer.py --batch "urls.txt" --output-dir "summaries"

# Custom model and transcript limit
python youtube_transcript_summarizer.py "VIDEO_URL" --model claude-sonnet-4-5-20250929 --max-transcript-chars 30000

CLI Options

| Option | Description | Default | |--------|-------------|---------| | --title | Custom video title | Auto-fetched via yt-dlp | | --source-lang | Source transcript language | en | | --target-lang | Output summary language | ko | | --output-dir | Output directory | outputs/summaries | | --batch FILE | Process multiple URLs from file | - | | --timeline-interval | Timeline interval (minutes) | 5 | | --no-summary | Skip AI summary | false | | --api-key | Claude API key | ANTHROPIC_API_KEY env | | --model | Claude model name | claude-sonnet-4-5-20250929 | | --max-transcript-chars | Max chars sent to Claude | 15000 |

Supported Languages

en, ko, ja, zh, es, fr, de, pt, ru, ar, hi, auto

Output Format

Files are named YYYY-MM-DD VideoTitle.md with YAML frontmatter:

---
title: "Video Title"
source: "https://www.youtube.com/watch?v=ID"
created: YYYY-MM-DD HH:MM:SS
tags:
  - youtube-transcript
video_id: "ID"
source_lang: "en"
target_lang: "ko"
---

Sections: Summary, Key Points, Main Content, Timeline, Full Transcript.

Claude Code Integration

Summarize this YouTube video: https://www.youtube.com/watch?v=VIDEO_ID