Nanobanana

Nanobanana

A Claude Code skill for generating images with Gemini 3 Pro Image (Nano Banana Pro).

The skill automatically transforms your requests into optimized prompts that exploit Nano Banana Pro's best features: perfect text rendering, logical reasoning for infographics, and photorealistic consistency.

Install (plugin marketplace)

/plugin marketplace add 0-to-1-Labs/claude-marketplace
/plugin install nanobanana@0to1-labs

Then set your API key:

1. Get one at Google AI Studio
2. Add to your shell config:

   export GEMINI_API_KEY="your-key-here"

3. Restart Claude Code

Alternative: standalone install (no marketplace)

curl -sL https://raw.githubusercontent.com/johnpsasser/nanobanana/main/install.sh | bash

This copies the skill into `~/.claude/skills/nanobanana`. Set your API key the same way as above.

Usage

Just ask Claude Code to generate images. The skill activates automatically.

**Simple:**

Generate an image of a fluffy cat on a cloud

**Infographic:**

Create a diagram showing how an espresso machine works

**Poster with text:**

Make a poster for a jazz night called "Blue Moon" on Friday

**Portrait:**

Portrait of a woman with freckles and green eyes, wearing headphones

**Edit an existing image:**

Take portrait.png and replace the background with a snowy mountain at golden hour

You can also ask for a specific shape or quality ("make it a 9:16 phone wallpaper", "render it at 4K"), and the skill wires that to the model's aspect ratio and resolution controls. Add "make a quick draft" to use the faster, cheaper Flash model instead of Pro.

Overview

Nano Banana Pro is a reasoning-based model. It does best with natural language descriptions, not keyword soup. This skill handles the translation:

• Detects the type of image you want (infographic, typog