What is Nano Banana Pro?

Nano Banana Pro is a specialized implementation of Gemini 3 Pro Image that supports structured JSON inputs for high-fidelity, controlled image generation.

Does this skill support social media dimensions?

Yes, the 'social_graphic' schema includes automated presets for Instagram posts/stories, Twitter cards, LinkedIn posts, and YouTube thumbnails.

Can I maintain brand consistency with this skill?

Absolutely. You can define primary colors, hex values, and logo assets within the schema to ensure every generated image aligns with your brand guidelines.

Why use JSON instead of natural language text prompts?

JSON schemas provide 'handles' or stable identifiers for every element, allowing you to iterate on specific parts of an image (like changing the lighting or a single prop) without regenerating the entire scene.

Nano Banana Image Schema Generator

Name: Nano Banana Image Schema Generator
Author: jawhnycooke

byjawhnycooke

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デザインツール

Generates precise, structured JSON schemas to control high-fidelity image generation for marketing, UI mockups, and data visualizations.

This skill empowers developers and designers to move beyond vague natural language prompts by translating creative intent into rigorous JSON specifications for Nano Banana Pro (Gemini 3 Pro Image). By utilizing a system of 'handles,' it enables granular control over camera angles, lighting, brand consistency, and layout across five distinct schema types. Whether you need a pixel-perfect UI mockup, a data-accurate chart, or a brand-aligned marketing hero shot, this skill ensures the reproducibility and iterative precision required for professional production workflows.

主な機能

01Handle-based element identification for scoped edits and targeted iterations

024 GitHub stars

03Five specialized schema types: Marketing, UI/UX, Diagrams, Data Viz, and Social Graphics

04Precise camera and lighting controls including focal length, depth of field, and light direction

05Brand consistency enforcement through color tokens, logo asset locks, and forbidden change constraints

06Automated requirement gathering that translates vague descriptions into valid JSON specifications

ユースケース

01Rapidly prototyping high-fidelity UI/UX mockups based on specific design tokens and component hierarchies

02Generating reproducible marketing assets with consistent product placement and professional lighting setups

03Creating data-accurate visualizations where exact numerical values and chart types must be visually represented

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add jawhnycooke/claude-plugins creating-image-schemas

For use in Claude.ai and ChatGPT

Download Skill