Agent skill

Summarize

Summarize or extract text/transcripts from URLs, podcasts, YouTube videos, and local files using the summarize CLI.

MITAuto-check passedAI & LLM Engineering

Install Summarize

skills CLI

$ npx skills add swarmclawai/swarmclaw --skill summarize -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install swarmclawai/swarmclaw summarize --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/swarmclawai/swarmclaw.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/summarize .claude/skills/summarize && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "summarize" agent skill from https://github.com/swarmclawai/swarmclaw/tree/main/skills/summarize into .claude/skills/summarize/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "summarize", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/swarmclawai/swarmclaw/tree/main/skills/summarize

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add swarmclawai/swarmclaw --skill summarize -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install swarmclawai/swarmclaw summarize --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/swarmclawai/swarmclaw.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/summarize .agents/skills/summarize && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "summarize" agent skill from https://github.com/swarmclawai/swarmclaw/tree/main/skills/summarize into .agents/skills/summarize/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "summarize", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add swarmclawai/swarmclaw --skill summarize -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install swarmclawai/swarmclaw summarize --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/swarmclawai/swarmclaw.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/summarize .cursor/skills/summarize && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "summarize" agent skill from https://github.com/swarmclawai/swarmclaw/tree/main/skills/summarize into .cursor/skills/summarize/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "summarize", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/swarmclawai/swarmclaw.git --path skills/summarize

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add swarmclawai/swarmclaw --skill summarize -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install swarmclawai/swarmclaw summarize --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/swarmclawai/swarmclaw.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/summarize .gemini/skills/summarize && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "summarize" agent skill from https://github.com/swarmclawai/swarmclaw/tree/main/skills/summarize into .gemini/skills/summarize/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "summarize", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install swarmclawai/swarmclaw summarize

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add swarmclawai/swarmclaw --skill summarize -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/swarmclawai/swarmclaw.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/summarize .github/skills/summarize && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "summarize" agent skill from https://github.com/swarmclawai/swarmclaw/tree/main/skills/summarize into .github/skills/summarize/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "summarize", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add swarmclawai/swarmclaw --skill summarize -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install swarmclawai/swarmclaw summarize --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/swarmclawai/swarmclaw.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/summarize .opencode/skills/summarize && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "summarize" agent skill from https://github.com/swarmclawai/swarmclaw/tree/main/skills/summarize into .opencode/skills/summarize/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "summarize", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: summarize
GitHub stars: 688
Token cost: ~531 tokens
SKILL.md length: 129 words
Files: 1
Skills in repo: 12
Repo updated: Jun 30, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Summarize or extract text/transcripts from URLs, podcasts, YouTube videos, and local files using the summarize CLI.

Asked to summarize a link
SKILL.md covers Quick Start, YouTube: Summary vs Transcript, Model + Keys and Useful Flags, plus 1 more section
Reaches youtu.be; needs APIFY_API_TOKEN and OPENAI_API_KEY
Transcribe a YouTube video

What it does

Summarize is an agent skill from swarmclawai/swarmclaw. Summarize or extract text/transcripts from URLs, podcasts, YouTube videos, and local files using the summarize CLI. Use when asked to summarize a link, article, video, or file, or to transcribe a YouTube video.

Its SKILL.md is about 530 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in AI & LLM Engineering, covering Transcription, Podcasting and Building AI agents. It works with YouTube, Model Context Protocol and Apify. The repository describes itself as: Open-source self-hosted AI agent runtime and multi-agent framework for autonomous agent swarms. Agent memory, MCP tools, schedules, delegation, and 23+ LLM providers (Claude… The licence is MIT.

When your agent uses it

Asked to summarize a link
Transcribe a YouTube video

Example prompts

“/summarize”

Requirements

A credential in OPENAI_API_KEY
A credential in ANTHROPIC_API_KEY

What it can do on your machine

Read from SKILL.md and the folder at commit ed38ba5. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are bash and json).
From the folder's file list and the shell code blocks in SKILL.md.
Network
Hosts in commands or code, which the agent is likely to contact:
- youtu.be
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names these keys or tokens, usually read from environment variables:
- APIFY_API_TOKEN
- OPENAI_API_KEY
- ANTHROPIC_API_KEY
- XAI_API_KEY
- GEMINI_API_KEY
- GOOGLE_GENERATIVE_AI_API_KEY
- GOOGLE_API_KEY
- FIRECRAWL_API_KEY
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Summarize loads about 531 tokens when it runs. Until then it costs about 55 tokens; SKILL.md has 129 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~55
When it runs · the whole SKILL.md, loaded when a task matches: ~531

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from swarmclawai/swarmclaw at commit ed38ba5, republished under its MIT licence (© swarmclawai). 129 words, ~531 tokens.

Download SKILL.mdSave it as .claude/skills/summarize/SKILL.md (or your agent's skills folder).

name: summarize
description: Summarize or extract text/transcripts from URLs, podcasts, YouTube videos, and local files using the summarize CLI. Use when asked to summarize a link, article, video, or file, or to transcribe a YouTube video.

Summarize

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

Quick Start

bash

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

YouTube: Summary vs Transcript

Best-effort transcript extraction (URLs only):

bash

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

If the user asked for a transcript but it's very long, return a tight summary first, then ask which section or 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> — control summary length
--max-output-tokens <count> — hard token limit
--extract-only — extract raw text without summarizing (URLs only)
--json — machine-readable output
--firecrawl auto|off|always — fallback extraction for blocked sites
--youtube auto — Apify fallback if APIFY_API_TOKEN is set

Config

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

json

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

Optional services:

FIRECRAWL_API_KEY for blocked sites
APIFY_API_TOKEN for YouTube fallback

Files

Just SKILL.md in skills/summarize of swarmclawai/swarmclaw.

Open the folder on GitHubat commit ed38ba5

Compare with similar skills

Summarize next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Summarize compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Summarize this skillswarmclawai/swarmclaw	688	—	~531	Automated safety check: Pass	MIT	3 mo ago
Summarizeopenclaw/openclaw	392k	1 repos	~531	Automated safety check: Pass	MIT	today
Summarizetrpc-group/trpc-agent-go	1.8k	22 repos	~552	Automated safety check: Pass	Apache-2.0	today
Gemini Video Understandingeinverne/dotfiles	121	1 repos	~2.6k	Automated safety check: Notes	MIT	29 days ago
Video Transcribewendy7756/AI-Video-Transcriber	3.3k	—	~937	Automated safety check: Notes	Apache-2.0	23 days ago
Nlm Skilliusztinpaul/ai-research-os-workshop	179	1 repos	~6.9k	Automated safety check: Pass	MIT	3 mo ago

Similar skills

Summarize
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Video Transcribe
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Questions about Summarize

What does Summarize do?

Summarize or extract text/transcripts from URLs, podcasts, YouTube videos, and local files using the summarize CLI. Summarize is an agent skill from swarmclawai/swarmclaw. Summarize or extract text/transcripts from URLs, podcasts, YouTube videos, and local files using the summarize CLI.

When should I use Summarize?

Summarize fits situations like: asked to summarize a link; transcribe a YouTube video.

How do I install Summarize in Claude Code?

Run `npx skills add swarmclawai/swarmclaw --skill summarize -a claude-code`. Or copy the skill folder (skills/summarize in swarmclawai/swarmclaw) into .claude/skills/summarize in your project. Claude Code loads it when a task matches its description.

How do I install Summarize in Codex?

Run `npx skills add swarmclawai/swarmclaw --skill summarize -a codex`. Or copy the skill folder (skills/summarize in swarmclawai/swarmclaw) into .agents/skills/summarize in your project. Codex loads it when a task matches its description.

Can I use Summarize in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add swarmclawai/swarmclaw --skill summarize -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/summarize, .gemini/skills/summarize, .github/skills/summarize and .opencode/skills/summarize in your project.

What does Summarize need to run?

Going by SKILL.md and its folder, Summarize needs credentials named APIFY_API_TOKEN, OPENAI_API_KEY, ANTHROPIC_API_KEY and XAI_API_KEY. Our summary lists: A credential in OPENAI_API_KEY; A credential in ANTHROPIC_API_KEY.

Does Summarize access the network?

SKILL.md names 1 domain. In commands or code: youtu.be; the agent is likely to contact it when it follows the instructions. This is read from the text; nothing was executed.

Is Summarize safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Summarize use?

Summarize is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Summarize use?

About 531 tokens (SKILL.md is roughly 2.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Summarize?

Skills that share tags, products or a category with Summarize: Summarize (openclaw/openclaw, 392k stars), Summarize (trpc-group/trpc-agent-go, 1.8k stars), Gemini Video Understanding (einverne/dotfiles, 121 stars) and Video Transcribe (wendy7756/AI-Video-Transcriber, 3.3k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Summarize?

swarmclawai (a GitHub organization) maintains it in swarmclawai/swarmclaw, which has 688 GitHub stars. The repository holds 12 skills in this directory. The repository was last updated on June 30, 2026.

Source: swarmclawai/swarmclaw on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Summarize

Install Summarize

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Summarize

Quick Start

YouTube: Summary vs Transcript

Model + Keys

Useful Flags

Config

Files

Compare with similar skills

Similar skills

Summarize

Summarize

Gemini Video Understanding

Video Transcribe

Nlm Skill

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Questions about Summarize

Install Summarize

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Summarize

Quick Start

YouTube: Summary vs Transcript

Model + Keys

Useful Flags

Config

Files

Compare with similar skills

Similar skills

More from swarmclawai/swarmclaw

Related

Questions about Summarize