Agent-Skills.md

Agent Skills: Nano Banana Pro - AI Image Generation

Generate images using AI. Use when the user asks to create, generate, or make images, pictures, graphics, illustrations, visuals, or artwork. Also use for image editing with reference images.

UncategorizedID: idanbeck/claude-skills/nano-banana-pro

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idanbeck/claude-skills
idanbeck

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nano-banana-pro/SKILL.md

Skill Metadata

Name
nano-banana-pro
Description
Generate images using AI. Use when the user asks to create, generate, or make images, pictures, graphics, illustrations, visuals, or artwork. Also use for image editing with reference images.

Nano Banana Pro - AI Image Generation

Generate images using Google's Gemini 3 Pro Image model.

Usage

Run the generation script:

python ~/.claude/skills/nano-banana-pro/generate_image.py "your prompt here" [options]

Options

| Option | Description | Default | |--------|-------------|---------| | --resolution | Output size: 1K, 2K, or 4K | 2K | | --aspect | Aspect ratio: 16:9, 1:1, 4:3, 9:16, 3:4 | 16:9 | | --output | Output directory path | ./generated_images | | --reference | Reference image(s) for style/editing (up to 14) | None | | --format | Output format: png, jpeg, webp | png |

Examples

Basic generation

python ~/.claude/skills/nano-banana-pro/generate_image.py "a serene mountain landscape at sunset, photorealistic"

Square image for social media

python ~/.claude/skills/nano-banana-pro/generate_image.py "abstract geometric pattern in blue and gold" --aspect 1:1 --resolution 2K

High-res with custom output

python ~/.claude/skills/nano-banana-pro/generate_image.py "futuristic city skyline" --resolution 4K --output ~/Pictures/ai-generated

Style transfer with reference image

python ~/.claude/skills/nano-banana-pro/generate_image.py "transform this into a watercolor painting" --reference input.jpg

Image editing with reference

python ~/.claude/skills/nano-banana-pro/generate_image.py "add a rainbow in the sky" --reference landscape.png

Output

Images are saved with timestamp filenames:

  • Format: {timestamp}_{sanitized_prompt}.{format}
  • Example: 20260106_143052_serene_mountain_landscape.png

The script outputs the full path to the generated image.

Requirements

  • Python 3.10+
  • google-genai library
  • GEMINI_API_KEY environment variable

Notes

  • Gemini 3 Pro Image requires paid billing (no free tier)
  • Generated images include SynthID watermarking
  • Reference images enable style transfer and editing capabilities
  • No text by default: The script automatically adds "no text/typography" instructions unless your prompt explicitly mentions text, typography, words, or labels. To include text, add words like "with text overlay" or "include typography" to your prompt.