Swarmclaw summarize

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.

install

source · Clone the upstream repo

git clone https://github.com/swarmclawai/swarmclaw

Claude Code · Install into ~/.claude/skills/

T=$(mktemp -d) && git clone --depth=1 https://github.com/swarmclawai/swarmclaw "$T" && mkdir -p ~/.claude/skills && cp -r "$T/skills/summarize" ~/.claude/skills/swarmclawai-swarmclaw-summarize && rm -rf "$T"

manifest: skills/summarize/SKILL.md

source content

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