summarize

Original：🇺🇸 English

Translated

Summarize URLs or files with the summarize CLI (web, PDFs, images, audio, YouTube).

1installs

Sourcebjesuiter/skills

Added on2026-02-17

NPX Install

npx skill4agent add bjesuiter/skills summarize

SKILL.md Content

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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

OpenCode Zen (FREE models!)

Use OpenCode Zen for free summarization with GLM 4.7:

bash

# Set env vars for OpenCode Zen
export OPENAI_BASE_URL="https://opencode.ai/zen/v1"
export OPENAI_API_KEY="<your-zen-api-key>"  # Get from https://opencode.ai/auth

# Summarize with free GLM 4.7
summarize "https://example.com" --model openai/glm-4.7-free

Free models on OpenCode Zen:

Model	Model ID
GLM 4.7	`glm-4.7-free`
Big Pickle	`big-pickle`
Grok Code Fast 1	`grok-code`
MiniMax M2.1	`minimax-m2.1-free`
GPT 5 Nano	`gpt-5-nano`

When using summarize with OpenCode Zen:

bash

OPENAI_BASE_URL="https://opencode.ai/zen/v1" OPENAI_API_KEY="$OPENCODE_ZEN_KEY" summarize "URL" --model openai/glm-4.7-free

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

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

For OpenCode Zen default:

json

{
  "model": "openai/big-pickle",
  "baseUrl": "https://opencode.ai/zen/v1"
}

Optional services:

```
FIRECRAWL_API_KEY
```
for blocked sites
```
APIFY_API_TOKEN
```
for YouTube fallback

summarize

NPX Install

Tags

SKILL.md Content

Summarize

Quick start

OpenCode Zen (FREE models!)

Free models on OpenCode Zen:

When using summarize with OpenCode Zen:

Model + keys

Useful flags

Config