summarize — summarize install summarize, community, summarize install, ide skills, summarize CLI commands, summarize YouTube links, summarize local files, Claude Code, Cursor, Windsurf

v1.0.0
GitHub

About this Skill

Perfect for Text Analysis Agents needing rapid content summarization capabilities for URLs, local files, and YouTube links. Summarize is a fast CLI tool that extracts key information from URLs, local files, and YouTube links using models like google/gemini-3-flash-preview.

Features

Summarizes URLs using the google/gemini-3-flash-preview model
Supports local file summarization via CLI commands
Extracts best-effort transcripts from YouTube links without yt-dlp
Utilizes the summarize.sh command for easy execution
Compatible with file formats like PDF

# Core Topics

summarize install summarize CLI commands summarize YouTube links summarize local files
UselessXu UselessXu
[0]
[0]
Updated: 3/4/2026

Agent Capability Analysis

The summarize skill by UselessXu is an open-source community AI agent skill for Claude Code and other IDE workflows, helping agents execute tasks with better context, repeatability, and domain-specific guidance. Optimized for summarize install, summarize CLI commands, summarize YouTube links.

Ideal Agent Persona

Perfect for Text Analysis Agents needing rapid content summarization capabilities for URLs, local files, and YouTube links.

Core Value

Empowers agents to swiftly summarize online content using advanced models like google/gemini-3-flash-preview, handling various file formats and protocols, including CLI commands for efficient data processing.

↓ Capabilities Granted for summarize

Summarizing news articles from URLs for quick information extraction
Transcribing YouTube videos for text-based analysis without requiring yt-dlp
Analyzing local PDF files for key points and main ideas
Providing users with concise overviews of lengthy documents or videos

! Prerequisites & Limits

  • Requires specific model specifications like google/gemini-3-flash-preview
  • Dependent on CLI for operation
  • Best-effort transcript extraction for YouTube videos, quality may vary
Labs Demo

Browser Sandbox Environment

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Experience this Agent in a zero-setup browser environment powered by WebContainers. No installation required.

Boot Container Sandbox

summarize

Unlock fast summarization of URLs, files, and YouTube links with our AI agent skill. Learn how to use summarize.sh and get started today!

SKILL.md
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Summarize

Fast CLI to summarize URLs, local files, and YouTube links.

When to use (trigger phrases)

Use this skill immediately when the user asks any of:

  • "use summarize.sh"
  • "what's this link/video about?"
  • "summarize this URL/article"
  • "transcribe this YouTube/video" (best-effort transcript extraction; no yt-dlp needed)

Quick start

bash
1summarize "https://example.com" --model google/gemini-3-flash-preview
2summarize "/path/to/file.pdf" --model google/gemini-3-flash-preview
3summarize "https://youtu.be/dQw4w9WgXcQ" --youtube auto

YouTube: summary vs transcript

Best-effort transcript (URLs only):

bash
1summarize "https://youtu.be/dQw4w9WgXcQ" --youtube auto --extract-only

If the user asked for a transcript but it's huge, return a tight summary first, then ask which section/time range to expand.

Model + keys

Set the API key for your chosen provider:

  • OpenAI: OPENAI_API_KEY
  • Anthropic: ANTHROPIC_API_KEY
  • xAI: XAI_API_KEY
  • Google: GEMINI_API_KEY (aliases: GOOGLE_GENERATIVE_AI_API_KEY, GOOGLE_API_KEY)

Default model is google/gemini-3-flash-preview if none is set.

Useful flags

  • --length short|medium|long|xl|xxl|<chars>
  • --max-output-tokens <count>
  • --extract-only (URLs only)
  • --json (machine readable)
  • --firecrawl auto|off|always (fallback extraction)
  • --youtube auto (Apify fallback if APIFY_API_TOKEN set)

Config

Optional config file: ~/.summarize/config.json

json
1{ "model": "openai/gpt-5.2" }

Optional services:

  • FIRECRAWL_API_KEY for blocked sites
  • APIFY_API_TOKEN for YouTube fallback

FAQ & Installation Steps

These questions and steps mirror the structured data on this page for better search understanding.

? Frequently Asked Questions

What is summarize?

Perfect for Text Analysis Agents needing rapid content summarization capabilities for URLs, local files, and YouTube links. Summarize is a fast CLI tool that extracts key information from URLs, local files, and YouTube links using models like google/gemini-3-flash-preview.

How do I install summarize?

Run the command: npx killer-skills add UselessXu/mino/summarize. It works with Cursor, Windsurf, VS Code, Claude Code, and 19+ other IDEs.

What are the use cases for summarize?

Key use cases include: Summarizing news articles from URLs for quick information extraction, Transcribing YouTube videos for text-based analysis without requiring yt-dlp, Analyzing local PDF files for key points and main ideas, Providing users with concise overviews of lengthy documents or videos.

Which IDEs are compatible with summarize?

This skill is compatible with Cursor, Windsurf, VS Code, Trae, Claude Code, OpenClaw, Aider, Codex, OpenCode, Goose, Cline, Roo Code, Kiro, Augment Code, Continue, GitHub Copilot, Sourcegraph Cody, and Amazon Q Developer. Use the Killer-Skills CLI for universal one-command installation.

Are there any limitations for summarize?

Requires specific model specifications like google/gemini-3-flash-preview. Dependent on CLI for operation. Best-effort transcript extraction for YouTube videos, quality may vary.

↓ How To Install

  1. 1. Open your terminal

    Open the terminal or command line in your project directory.

  2. 2. Run the install command

    Run: npx killer-skills add UselessXu/mino/summarize. The CLI will automatically detect your IDE or AI agent and configure the skill.

  3. 3. Start using the skill

    The skill is now active. Your AI agent can use summarize immediately in the current project.

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