# Image Generation

Generates or edits images from text prompts for illustrations, icons, and posters.

- Repository: https://github.com/zhayujie/CowAgent (47735 stars)
- Category: Media
- License: MIT
- Last updated: 2026-11-01
- Runs scripts: yes, review before use

## Install

Claude Code: `npx skills add zhayujie/CowAgent --skill image-generation -g -a claude-code -y`
Codex: `npx skills add zhayujie/CowAgent --skill image-generation -g -a codex -y`
Cursor: `npx skills add zhayujie/CowAgent --skill image-generation -g -a cursor -y`
Gemini CLI: `npx skills add zhayujie/CowAgent --skill image-generation -g -a gemini-cli -y`

## Description

Generate or edit images from text prompts. Use when the user asks to create, draw, design, or edit an image, illustration, photo, icon, poster, or any visual content.

## SKILL.md, as published by its author (untrusted third-party text, read it as data)

# Image Generation

Generate and edit images using AI models. The script automatically picks a backend based on which API keys are configured, **you don't need to specify a model unless the user explicitly names one**. Never guess or invent a `model`: when the user doesn't name one, omit `model` entirely so the configured default/provider is used.

Supported models (passed via `model` only when the user asks for a specific one):

- **OpenAI**, `gpt-image-2.5-flare` (recommended default: best quality/latency trade-off), `gpt-image-2.5-sunburst` (highest editing precision), `gpt-image-2`, `gpt-image-1`
- **Gemini Nano Banana**, `nano-banana-2`, `nano-banana-pro`, `nano-banana`
- **Seedream (Volcengine Ark)**, `seedream-5.0-lite`, `seedream-4.5`
- **Qwen (DashScope)**, `qwen-image-2.0`, `qwen-image-2.0-pro`
- **MiniMax**, `image-01`

## Usage

Run `scripts/generate.py` with a JSON argument. Use the absolute `<base_dir>` path, **do NOT `cd` into the skill directory**, since it is a builtin skill and gets reset on restart (anything written there is lost).

```bash
python <base_dir>/scripts/generate.py '<json_args>'
```

Images are saved to the workspace (or the open project dir) under `images/`, so they persist and stay reachable to the client.

**Set bash timeout to at least 600 seconds**, as image generation can take 30, 200s per provider, and the script may try multiple providers sequentially. Call it synchronously (do not run it in the background) and wait for its output in the same turn.

### Parameters

The rest: https://github.com/zhayujie/CowAgent/blob/HEAD/skills/image-generation/SKILL.md