How do I install the Nano Banana Pro skill?

Run npx skillmds add nicepkg/nano-banana-pro in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Nano Banana Pro safe to use?

This skill has not completed SkillMD's automated safety review yet. Capability flags: executes scripts. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Nano Banana Pro?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Nano Banana Pro free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Nano Banana Pro?

nicepkg (@nicepkg) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Nano Banana Pro by nicepkg — Agent Skill

Name: Nano Banana Pro
Rating: 4.2 (5 reviews)
Author: nicepkg

Nano Banana Pro

Generate images using Google's Nano Banana Pro (gemini-3-pro-image-preview). Accepts text prompts and optionally images (for editing/transformation) as INPUT. Returns generated IMAGES as OUTPUT. Use when user asks to create, generate, edit, or draw images, infographics, visualizations, diagrams, charts, or illustrations. Excellent for data-accurate infographics and text rendering.

nicepkg 0f1de79 2 files · 6.9 KB Updated Sep 9, 2026

File contents

Nano Banana Pro Image Generator

Generate images using Google's advanced Nano Banana Pro model (gemini-3-pro-image-preview).

Prerequisites

The user must have GEMINI_API_KEY environment variable set with a valid Google AI API key.

Usage

The script is located in the same directory as this SKILL.md file. Run it with uv run:

uv run /path/to/skills/nano-banana-pro/generate_image.py "your prompt" -o output.png

When this skill is invoked, locate generate_image.py in the skill directory and run it.

Parameters

Parameter	Required	Description
`prompt`	Yes	Text description of the image to generate or transformation to apply
`-o`, `--output`	Yes	Output filename (you decide the path based on context)
`-i`, `--image`	No	Input image(s) for editing/transformation or as context/reference (can be used multiple times)
`--aspect-ratio`	No	One of: `1:1`, `2:3`, `3:2`, `3:4`, `4:3`, `4:5`, `5:4`, `9:16`, `16:9`, `21:9` (default: `1:1`)
`--size`	No	Image size: `1K`, `2K`, `4K` (default: `1K`)

Examples

Basic image generation:

uv run generate_image.py "A sunset over mountains" -o sunset.png

Infographic with specific aspect ratio:

uv run generate_image.py "Infographic showing the water cycle with labeled stages" -o water_cycle.png --aspect-ratio 9:16

High-resolution ultrawide:

uv run generate_image.py "Professional photo of a modern office space" -o office.png --aspect-ratio 21:9 --size 4K

Edit an existing image:

uv run generate_image.py "Add a sunset sky to this image" -i photo.png -o edited.png

Transform with style:

uv run generate_image.py "Make this look like a watercolor painting" -i input.jpg -o watercolor.png

Combine multiple images:

uv run generate_image.py "Create a collage blending these images together" -i img1.png -i img2.png -o collage.png

Use image as context/reference:

uv run generate_image.py "Generate a new landscape in the same style as this reference" -i reference.png -o new_landscape.png

Model Capabilities

Nano Banana Pro excels at:

Accurate infographics with real data (uses Google Search grounding)
Text rendering in images
Image editing and transformation from input images
Context-aware generation using reference images for style, composition, or subject
Cartographic visualizations and maps
Detailed instruction following
Chain-of-thought reasoning for complex visual tasks

Output

The script prints:

Progress message while generating
Path to saved image on success
Any text response from the model
Error message if no image was generated

---name: nano-banana-prodescription: Generate images using Google's Nano Banana Pro (gemini-3-pro-image-preview). Accepts text prompts and optionally images (for editing/transformation) as INPUT. Returns generated IMAGES as OUTPUT. Use when user asks to create, generate, edit, or draw images, infographics, visualizations, diagrams, charts, or illustrations. Excellent for data-accurate infographics and text rendering.---# Nano Banana Pro Image GeneratorGenerate images using Google's advanced Nano Banana Pro model (`gemini-3-pro-image-preview`).## PrerequisitesThe user must have `GEMINI_API_KEY` environment variable set with a valid Google AI API key.## UsageThe script is located in the same directory as this SKILL.md file. Run it with `uv run`:```bashuv run /path/to/skills/nano-banana-pro/generate_image.py "your prompt" -o output.png```When this skill is invoked, locate `generate_image.py` in the skill directory and run it.### Parameters| Parameter | Required | Description ||-----------|----------|-------------|| `prompt` | Yes | Text description of the image to generate or transformation to apply || `-o`, `--output` | Yes | Output filename (you decide the path based on context) || `-i`, `--image` | No | Input image(s) for editing/transformation or as context/reference (can be used multiple times) || `--aspect-ratio` | No | One of: `1:1`, `2:3`, `3:2`, `3:4`, `4:3`, `4:5`, `5:4`, `9:16`, `16:9`, `21:9` (default: `1:1`) || `--size` | No | Image size: `1K`, `2K`, `4K` (default: `1K`) |### ExamplesBasic image generation:```bashuv run generate_image.py "A sunset over mountains" -o sunset.png```Infographic with specific aspect ratio:```bashuv run generate_image.py "Infographic showing the water cycle with labeled stages" -o water_cycle.png --aspect-ratio 9:16```High-resolution ultrawide:```bashuv run generate_image.py "Professional photo of a modern office space" -o office.png --aspect-ratio 21:9 --size 4K```Edit an existing image:```bashuv run generate_image.py "Add a sunset sky to this image" -i photo.png -o edited.png```Transform with style:```bashuv run generate_image.py "Make this look like a watercolor painting" -i input.jpg -o watercolor.png```Combine multiple images:```bashuv run generate_image.py "Create a collage blending these images together" -i img1.png -i img2.png -o collage.png```Use image as context/reference:```bashuv run generate_image.py "Generate a new landscape in the same style as this reference" -i reference.png -o new_landscape.png```## Model CapabilitiesNano Banana Pro excels at:- **Accurate infographics** with real data (uses Google Search grounding)- **Text rendering** in images- **Image editing and transformation** from input images- **Context-aware generation** using reference images for style, composition, or subject- **Cartographic visualizations** and maps- **Detailed instruction following**- **Chain-of-thought reasoning** for complex visual tasks## OutputThe script prints:- Progress message while generating- Path to saved image on success- Any text response from the model- Error message if no image was generated

Frequently asked questions