gemini-image

name	gemini-image
description	Generate images using Gemini 3 Pro Image (Nano Banana Pro). Use this skill when the user asks to create, generate, or make an image, picture, illustration, artwork, mockup, or visual. Also use for image editing, transformation, or style transfer when a reference image is provided.
allowed-tools	Bash, Read

Gemini Image Generation

Generate images using Gemini 3 Pro's image generation API.

Prerequisites

• GEMINI_API_KEY environment variable
• pngpaste for clipboard capture

Parameters

Flag	Default	Description
-p, --prompt	-	Text description of desired image (required)
-i, --image	-	Reference image path (can be used multiple times)
-c, --clipboard	-	Capture clipboard image as reference
-a, --aspect	16:9	Aspect ratio: 1:1, 16:9, 9:16, 3:2, 4:5, 21:9
-r, --resolution	2K	Resolution: 1K, 2K, 4K
-o, --output	auto	Output file path

Output: prints path to generated image, then opens it.

Examples

Text-to-image

scripts/generate.sh -p "A serene mountain landscape at golden hour"

With reference image

scripts/generate.sh -p "Same scene but in winter" -i /path/to/summer.png

From clipboard

scripts/generate.sh -c -p "Make this design more modern"

Custom aspect/resolution

scripts/generate.sh -p "Cyberpunk cityscape" -a 21:9 -r 4K