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smithery.ai

nano-image-generator

Generate images using Nano Banana Pro (Gemini 3 Pro Preview).

First seen Mar 18, 2026

Installation

$ npx skills add https://smithery.ai
View on skills.sh ↗ Website ↗

Summary

  • Generate images using Nano Banana Pro (Gemini 3 Pro Preview).
  • Use when creating app icons, logos, UI graphics, marketing banners, social media images, illustrations, diagrams, or any visual assets.
  • Triggers include phrases like 'generate an image', 'create a graphic', 'make an icon', 'design a logo', 'create a banner', or any request needing visual content.

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Also in this package

Other skills from smithery.ai · top by installs.

npx skills add https://smithery.ai
smithery-ai-cli 7.8K frontend-design 6.2K skill-creator 2.5K ck:ui-ux-pro-max 1.3K pdf 1.2K xlsx 966 pptx 894 docx 884 webapp-testing 1 web-design-reviewer 657

Browse all from smithery.ai

More details

Agent compatibility

Declared targets from SKILL.md / docs. Unmarked agents are not listed — the skill may still install via the CLI.

Claude Code Not declared
Cursor Not declared
Codex Not declared
GitHub Copilot Not declared
Windsurf Not declared
Gemini CLI Not declared
Cline Not declared
OpenCode Not declared

Package contents

Files included with this skill beyond the listing page.

  • skill md SKILL.md 3,089 B
  • docs SUMMARY.md 387 B

History

  1. First seen on skills.sh
  2. First recorded snapshot · 4 installs

SKILL.md

Nano Image Generator

Generate images using Nano Banana Pro (Gemini 3 Pro Preview) for any visual asset needs.

Requirements

Set the GEMINIAPIKEY environment variable. Get a key at: https://aistudio.google.com/apikey

Quick Start

python scripts/generate_image.py "A friendly robot mascot waving" --output ./assets/mascot.png

Script Usage

python scripts/generate_image.py <prompt> --output <path> [options]

Required:

  • prompt - Image description
  • --output, -o - Output file path

Options:

  • --aspect, -a - Aspect ratio (default: 1:1)

- Square: 1:1 - Portrait: 2:3, 3:4, 4:5, 9:16 - Landscape: 3:2, 4:3, 5:4, 16:9, 21:9

  • --size, -s - Resolution: 1K, 2K (default), 4K

Workflow

  1. Determine output location - Place images where contextually appropriate:

- App icons → ./assets/icons/ or ./public/icons/ - Marketing → ./marketing/ or ./assets/images/ - UI elements → ./src/assets/ or ./public/images/ - General → ./generated/

  1. Craft effective prompts - Be specific and descriptive:

- Include style: "flat design", "3D rendered", "watercolor", "minimalist" - Include context: "for a mobile app", "website hero image", "social media post" - Include details: colors, mood, composition

  1. Choose appropriate settings:

- Icons/logos → --aspect 1:1 - Banners/headers → --aspect 16:9 - Mobile screens → --aspect 9:16 - Photos → --aspect 3:2 or 4:3

Examples

App icon:

python scripts/generate_image.py "Minimalist flat design app icon of a lightning bolt, purple gradient background, modern iOS style" \
  --output ./assets/app-icon.png --aspect 1:1

Marketing banner:

python scripts/generate_image.py "Professional website hero banner for a productivity app, abstract geometric shapes, blue and white color scheme, modern and clean" \
  --output ./public/images/hero-banner.png --aspect 16:9

High-quality illustration:

python scripts/generate_image.py "Detailed isometric illustration of a cozy home office setup with plants, warm lighting, digital art style" \
  --output ./assets/illustrations/office.png --size 4K

Prompt Tips

  • Be specific - "A red apple on a wooden table" vs "an apple"
  • Include style - "in the style of pixel art" or "photorealistic"
  • Mention purpose - "for a children's book" affects the output style
  • Describe composition - "centered", "rule of thirds", "close-up"
  • Specify colors - Explicit color palettes yield better results
  • Avoid - Don't ask for text in images (use overlays instead)