| name | generate |
| description | Use this skill when the user asks to "generate an image", "generate images", "create an image", "make an image", or requests multiple images like "generate 5 images". Generates images using Google's Gemini 2.5 Flash for any purpose - frontend designs, web projects, illustrations, graphics, hero images, icons, backgrounds, or standalone artwork. Invoke this skill for ANY image generation request. |
Nano Banana Pro - Gemini Image Generation
Generate custom images using Google's Gemini 2.5 Flash model for integration into frontend designs.
Prerequisites
Set the GEMINI_API_KEY environment variable with your Google AI API key.
Image Generation Workflow
Step 1: Generate the Image
Use scripts/image.py with uv. The script is located in the skill directory at skills/generate/scripts/image.py:
uv run "${SKILL_DIR}/scripts/image.py" \
--prompt "Your image description" \
--output "/path/to/output.png"
Where ${SKILL_DIR} is the directory containing this SKILL.md file.
Options:
--prompt(required): Detailed description of the image to generate--output(required): Output file path (PNG format)--aspect(optional): Aspect ratio - "square", "landscape", "portrait" (default: square)
Step 2: Integrate with Frontend Design
After generating images, incorporate them into frontend code:
HTML/CSS:
<img src="./generated-hero.png" alt="Description" class="hero-image" />
React:
import heroImage from './assets/generated-hero.png';
<img src={heroImage} alt="Description" className="hero-image" />
CSS Background:
.hero-section {
background-image: url('./generated-hero.png');
background-size: cover;
background-position: center;
}
Crafting Effective Prompts
Write detailed, specific prompts for best results:
Good prompt:
A minimalist geometric pattern with overlapping translucent circles in coral, teal, and gold on a deep navy background, suitable for a modern fintech landing page hero section
Avoid vague prompts:
A nice background image
Prompt Elements to Include
- Subject: What the image depicts
- Style: Artistic style (minimalist, abstract, photorealistic, illustrated)
- Colors: Specific color palette matching the design system
- Mood: Atmosphere (professional, playful, elegant, bold)
- Context: How it will be used (hero image, icon, texture, illustration)
- Technical: Aspect ratio needs, transparency requirements
Integration with Frontend-Design Skill
When used alongside the frontend-design skill:
- Plan the visual hierarchy - Identify where generated images add value
- Match the aesthetic - Ensure prompts align with the chosen design direction (brutalist, minimalist, maximalist, etc.)
- Generate images first - Create visual assets before coding the frontend
- Reference in code - Use relative paths to generated images in your HTML/CSS/React
Example Workflow
- User requests a landing page with custom hero imagery
- Invoke nano-banana-pro to generate the hero image with a prompt matching the design aesthetic
- Invoke frontend-design to build the page, referencing the generated image
- Result: A cohesive design with custom AI-generated visuals
Output Location
By default, save generated images to the project's assets directory:
./assets/for simple HTML projects./src/assets/or./public/for React/Vue projects- Use descriptive filenames:
hero-abstract-gradient.png,icon-user-avatar.png