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nano-banana

Generate and edit images using the Gemini nanobanana extension.

125|35|Updated Jan 21, 2026
Search Tags:#gemini#image-generation#nanobanana#thumbnail#image-editing#icon-design
One-click install
npx skills add https://github.com/jh941213/my-claude-code-asset --skill nano-banana-jh941213
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: nano-banana
Source: https://github.com/jh941213/my-claude-code-asset/tree/main/skills/nano-banana
Command: npx skills add https://github.com/jh941213/my-claude-code-asset --skill nano-banana-jh941213

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill enables fast and reliable image generation and editing using the Gemini nanobanana extension, ensuring consistent results for visuals and graphics.

Core Features & Use Cases

  • Generate blog thumbnails, YouTube banners, icons, diagrams, patterns, and illustrations with a single command set.
  • Edit existing images (restore, modify colors, resize) and create variations for design iterations.
  • Use in workflows for marketing, product design, UI mockups, and documentation visuals.

Quick Start

Install the Gemini CLI and the nanobanana extension, verify installation, and optionally set GEMINI_API_KEY. Then run a simple command like "generate a YouTube thumbnail for a product launch" using the nanobanana extension.

Frequently Asked Questions about nano-banana

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

FAQPage Schema
How do I generate blog thumbnails and YouTube banners using Gemini CLI?▼

You can generate blog thumbnails and YouTube banners by running simple text commands through the Gemini nanobanana extension, which automates image creation directly within the Gemini CLI environment.

Can I edit existing images and create design variations with Gemini nanobanana?▼

Yes, you can edit existing images to restore details, modify colors, and resize them. You can also create design variations for iterative workflows using the /edit command.

Do I need the GEMINI_API_KEY to generate icons and diagrams with nanobanana?▼

You must install the Gemini CLI and nanobanana extension first. Setting the GEMINI_API_KEY is optional but recommended for authenticating and automating icon and diagram generation.

What is the best way to automate UI mockup and documentation visual generation?▼

Automating UI mockups and documentation visuals is best handled by issuing generation commands for diagrams, patterns, and illustrations, ensuring consistent results for product design and marketing workflows.

Why does image generation fail when using nanobanana commands?▼

Image generation fails if the Gemini CLI and nanobanana extension are not properly installed or verified. Ensure your environment is correctly set up before running commands like /generate or /icon.

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