summarize

summarize is a skill for Claude Code, Codex from swarmclawai/swarmclaw. It costs 53 tokens per session (592 once invoked), scanned A, original, MIT.

A command-line tool for extracting and summarizing text from web pages, local files, podcasts, and YouTube videos. It can also extract raw text or transcripts when available.

In plain words
What is it for?
Use it to summarize articles, PDFs, videos, podcasts, and other files, control the summary length, or return machine-readable JSON.
Why use it?
It reduces the time needed to read or transcribe long online and local content manually.

Skill for Claude CodeCodex

Which agent this was written for is unclear — built for openclaw. Also seen: built for openclaw.

Good fit Use it to summarize articles, PDFs, videos, podcasts, and other files, control the summary length, or return machine-readable JSON.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/swarmclawai/swarmclaw/summarize
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add swarmclawai/swarmclaw --skill summarize
Clone the repo
git clone --depth 1 https://github.com/swarmclawai/swarmclaw

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for summarize

README.md
[![agentmods](https://agentmods.dev/badge/skills/swarmclawai/swarmclaw/summarize.svg)](https://agentmods.dev/skills/swarmclawai/swarmclaw/summarize)
Your own site
<a href="https://agentmods.dev/skills/swarmclawai/swarmclaw/summarize"><img src="https://agentmods.dev/badge/skills/swarmclawai/swarmclaw/summarize.svg" alt="Measured on agentmods" height="20"></a>
Per session 53 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 592 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00053 $0.00592
Opus 5 $0.00026 $0.00296
Sonnet 5 $0.00011 $0.00118
Haiku 4.5 $0.00005 $0.00059

Measured 8d ago against content hash 5cdb3383587a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

summarize scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/summarize/SKILL.md · 78 lines

What it actually says

Summarize

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

Quick Start

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):

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

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

Optional services:

  • FIRECRAWL_API_KEY for blocked sites
  • APIFY_API_TOKEN for YouTube fallback
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 8d ago First seen · 78 lines · 53 tokens per session scan A 5cdb3383587a

Subscribe to this mod's changes

summarize is a skill published in the GitHub repository swarmclawai/swarmclaw (665 stars, last pushed 2mo ago), licensed MIT. It adds 53 tokens to every session and 592 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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