json-prompting-for-nano-banana

jawhnycooke/claude-plugins

Converts natural language descriptions into structured JSON schemas for Nano Banana Pro (Gemini 3 Pro Image). Use when creating marketing images, UI mockups, diagrams, data visualizations, or social media graphics that require precise control and reproducibility. Supports five schema types for product photography, interfaces, flowcharts, charts, and social content.

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Installation

Option 1: Use slash command in Claude Code

/install-skill https://github.com/jawhnycooke/claude-plugins/tree/main/plugins/nano-banana/skills

Option 2: Clone to skills directory

# Global (all projects)

git clone https://github.com/jawhnycooke/claude-plugins/tree/main/plugins/nano-banana/skills ~/.claude/skills/claude-plugins

# Project-specific

git clone https://github.com/jawhnycooke/claude-plugins/tree/main/plugins/nano-banana/skills .claude/skills/claude-plugins

Add MCP server to .cursor/mcp.json:

{
  "mcpServers": {
    "skillz": {
      "command": "npx",
      "args": ["-y", "skillz-mcp", "https://github.com/jawhnycooke/claude-plugins/tree/main/plugins/nano-banana/skills"]
    }
  }
}

Restart Cursor after adding the configuration.

Option 1: Use Gemini CLI command

gemini extensions install https://github.com/jawhnycooke/claude-plugins/tree/main/plugins/nano-banana/skills

Option 2: Clone to extensions directory

git clone https://github.com/jawhnycooke/claude-plugins/tree/main/plugins/nano-banana/skills ~/.gemini/extensions/claude-plugins

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