imagen · sanjay3290 — Claude Code skill: image generation via Gemini

---
name: imagen
description: |
  Generate images using Google Gemini's image generation capabilities.
  Use this skill when the user needs to create, generate, or produce images
  for any purpose including UI mockups, icons, illustrations, diagrams,
  concept art, placeholder images, or visual representations.
license: Apache-2.0
metadata:
  author: sanjay3290
  version: "1.0"
---

# Imagen - AI Image Generation Skill

## Overview

This skill generates images using Google Gemini's image generation model (`gemini-3-pro-image-preview`). It enables seamless image creation during any Claude Code session - whether you're building frontend UIs, creating documentation, or need visual representations of concepts.

**Cross-Platform**: Works on Windows, macOS, and Linux.

## When to Use This Skill

Automatically activate this skill when:
- User requests image generation (e.g., "generate an image of...", "create a picture...")
- Frontend development requires placeholder or actual images
- Documentation needs illustrations or diagrams
- Visualizing concepts, architectures, or ideas
- Creating icons, logos, or UI assets
- Any task where an AI-generated image would be helpful

## How It Works

1. Takes a text prompt describing the desired image
2. Calls Google Gemini API with image generation configuration
3. Saves the generated image to a specified location (defaults to current directory)
4. Returns the file path for use in your project

## Usage

### Python (Cross-Platform - Recommended)

```bash
# Basic usage
python scripts/generate_image.py "A futuristic city skyline at sunset"

# With custom output path
python scripts/generate_image.py "A minimalist app icon for a music player" "./assets/icons/music-icon.png"

# With custom size
python scripts/generate_image.py --size 2K "High resolution landscape" "./wallpaper.png"
```

## Requirements

- `GEMINI_API_KEY` environment variable must be set
- Python 3.6+ (uses standard library only, no pip install needed)

## Output

Generated images are saved as PNG files. The script returns:
- Success: Path to the generated image
- Failure: Error message with details

## Examples

### Frontend Development
```
User: "I need a hero image for my landing page - something abstract and tech-focused"
-> Generates and saves image, provides path for use in HTML/CSS
```

### Documentation
```
User: "Create a diagram showing microservices architecture"
-> Generates visual representation, ready for README or docs
```

### UI Assets
```
User: "Generate a placeholder avatar image for the user profile component"
-> Creates image in appropriate size for component use
```