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nano-banana-pro

@idanbeck/claude-skills
2
22

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.

Install Skill

Shared

Installs to .agents/skills, used by Codex, Amp, Warp, Cursor, OpenCode, and more.

CodexAmp
WarpCursorOpenCode
ClineGemini CLI
GitHub Copilot
Personal

Available across projects.

$npx skills-installer add @idanbeck/claude-skills/nano-banana-pro --client shared
Project

Writes to .agents/skills.

$npx skills-installer add @idanbeck/claude-skills/nano-banana-pro -p --client shared
Note: Review the skill instructions before using it.

SKILL.md

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.
allowed-tools Bash, Read, Write

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
--no-text Add instruction to exclude text/typography off
--cinematic Add cinematic film style (ARRI, shallow DoF, grain) off
--photorealistic Add photorealistic style hints off

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
  • Raw prompts by default: Prompts are sent unadulterated. Use --no-text, --cinematic, or --photorealistic flags to add style hints.