Nano Banana Prompts

Generates structured prompts for Gemini 2.5 Flash Image (Nano Banana) following best practices from October 2025. The main insight here is to write natural scene descriptions instead of keyword lists, which apparently works better for this model. You get templates for photography (with specific lens and lighting specs), product shots, landscapes, illustrations, and text rendering. It pushes 50-100 word prompts as the sweet spot and includes a multi-turn editing workflow since Nano Banana handles conversational refinements well. The checklist format is practical: subject, action, environment, lighting, mood, style, aspect ratio. If you're doing any serious work with this specific image model, the camera terminology and lighting references alone save you from fumbling around.

skills.sh installs: 626
GitHub stars: 248
last updated: Aug 21, 2026

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Install

$ npx -y skills add secondsky/claude-skills --skill nano-banana-prompts --agent claude-code

Installs into .claude/skills of the current project.

Files

Nano Banana Image Prompt Generator

Generate high-quality prompts for Gemini 2.5 Flash Image using proven best practices from October 2025.

Core Principle

Describe scenes naturally, don't list keywords.

❌ woman, business suit, office, professional ✅ A professional businesswoman in navy suit stands confidently in modern glass-walled office overlooking city skyline. Warm afternoon light streams through windows.

Prompt Structure

Basic Template

A [SHOT TYPE] of [SUBJECT] [ACTION] in [ENVIRONMENT]. 
[LIGHTING] creates [MOOD]. [CAMERA/STYLE DETAILS]. [ASPECT RATIO].

Components

Subject & Action - Who/what and what they're doing
Setting - Where the scene takes place
Lighting - Natural/artificial light sources and quality
Mood - Emotional tone or atmosphere
Technical Details - Camera, lens, style specifics
Format - Aspect ratio or dimensions

Prompt Length

Short (10-20 words): Quick generation, minimal control
Medium (50-100 words): ⭐ RECOMMENDED - balanced control
Long (100-200 words): Maximum control for complex scenes

Photography Prompts

SKILL.md on GitHub

Details

Repository: github.com/secondsky/claude-skills
First seen: Jun 3, 2026