nano-banana

Generate custom AI images via the nano-banana CLI with Gemini models.

5|Updated Mar 27, 2026

Search Tags:#game assets #ai image generation #cost tracking #nano-banana #style transfer #ui mockups #transparent images

Ready to run

npx skills add https://github.com/barkleesanders/claude-code-starter --skill nano-banana-barkleesanders

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: nano-banana
Source: https://github.com/barkleesanders/claude-code-starter/tree/main/skills/nano-banana
Command: npx skills add https://github.com/barkleesanders/claude-code-starter --skill nano-banana-barkleesanders

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill removes the barrier of sourcing custom visual assets for projects, eliminating the need to hire professional designers or pay for expensive, rigid stock image libraries for one-off or iterative asset needs.

Core Features & Use Cases

Multi-Resolution Image Generation: Create images from 512px up to 4K resolution with support for 9+ aspect ratios to fit any use case.
Flexible Asset Workflows: Edit existing images with reference inputs, generate transparent assets via automatic green screen keying, and craft realistic influencer-style social media images with built-in prompt engineering guidance.
Common Use Cases: UI mockups, game sprites and characters, marketing hero images, product shots, and social media content.

Quick Start

Use the nano-banana skill to generate a 16:9 widescreen cyberpunk cityscape image at 2K resolution for your project's marketing hero banner.

Frequently Asked Questions about nano-banana

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I generate transparent images for game assets using AI?▼

To generate transparent images for game assets, this skill uses automatic green screen keying to remove backgrounds. You need an optional FFmpeg or ImageMagick installation to execute this transparent background removal workflow successfully.

Can I use a reference image for style transfer in AI image generation?▼

Yes, you can use reference image inputs for style transfer in AI image generation. The tool processes your existing images to apply the desired visual style to newly created project assets.

What resolutions and aspect ratios are supported for UI mockup image generation?▼

AI image generation for UI mockups supports multi-resolution output from 512px up to 4K. It includes support for 9+ aspect ratios to ensure your generated images fit any design use case.

Do I need a Gemini API key to generate custom marketing hero images?▼

Yes, you need a valid Gemini API key to generate custom marketing hero images. The image generation process is powered by Gemini models and includes per-generation cost tracking.

Are there any limitations when using nano-banana for AI image generation?▼

Limitations include requiring a valid Gemini API key for operation. Additionally, generating transparent images requires optional FFmpeg or ImageMagick installations, which must be set up in your local environment beforehand.