Imagen - AI Image Generation Skill

1---
2name: imagen
3description: |
4  Generate images using Google Gemini's image generation capabilities.
5  Use this skill when the user needs to create, generate, or produce images
6  for any purpose including UI mockups, icons, illustrations, diagrams,
7  concept art, placeholder images, or visual representations.
8license: Apache-2.0
9metadata:
10  author: sanjay3290
11  version: "1.0"
12---
13 
14# Imagen - AI Image Generation Skill
15 
16## Overview
17 
18This 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.
19 
20**Cross-Platform**: Works on Windows, macOS, and Linux.
21 
22## When to Use This Skill
23 
24Automatically activate this skill when:
25- User requests image generation (e.g., "generate an image of...", "create a picture...")
26- Frontend development requires placeholder or actual images
27- Documentation needs illustrations or diagrams
28- Visualizing concepts, architectures, or ideas
29- Creating icons, logos, or UI assets
30- Any task where an AI-generated image would be helpful
31 
32## How It Works
33 
341. Takes a text prompt describing the desired image
352. Calls Google Gemini API with image generation configuration
363. Saves the generated image to a specified location (defaults to current directory)
374. Returns the file path for use in your project
38 
39## Usage
40 
41### Python (Cross-Platform - Recommended)
42 
43```bash
44# Basic usage
45python scripts/generate_image.py "A futuristic city skyline at sunset"
46 
47# With custom output path
48python scripts/generate_image.py "A minimalist app icon for a music player" "./assets/icons/music-icon.png"
49 
50# With custom size
51python scripts/generate_image.py --size 2K "High resolution landscape" "./wallpaper.png"
52```
53 
54## Requirements
55 
56- `GEMINI_API_KEY` environment variable must be set
57- Python 3.6+ (uses standard library only, no pip install needed)
58 
59## Output
60 
61Generated images are saved as PNG files. The script returns:
62- Success: Path to the generated image
63- Failure: Error message with details
64 
65## Examples
66 
67### Frontend Development
68```
69User: "I need a hero image for my landing page - something abstract and tech-focused"
70-> Generates and saves image, provides path for use in HTML/CSS
71```
72 
73### Documentation
74```
75User: "Create a diagram showing microservices architecture"
76-> Generates visual representation, ready for README or docs
77```
78 
79### UI Assets
80```
81User: "Generate a placeholder avatar image for the user profile component"
82-> Creates image in appropriate size for component use
83```
84