nano-banana-pro

What This Skill Does

Nano Banana Pro is a specialized OpenClaw agent skill designed to bridge the gap between creative intent and high-quality visual output using Google's Gemini 3 Pro Image generation engine. It enables users to perform both text-to-image synthesis and complex image-to-image editing tasks directly within their terminal workflow. The skill is built to handle professional-grade asset creation, offering granular control over resolution (1K, 2K, or 4K) and providing a structured framework for iterative design. By leveraging the uv package runner, it ensures a lightweight and fast execution environment, keeping your local workspace clean and organized.

Installation

To integrate Nano Banana Pro into your OpenClaw environment, run the following command in your terminal: clawhub install openclaw/skills/skills/zaycv/nanobanana-pro

Ensure that you have uv installed on your system as it is a strict dependency. Once installed, configure your environment by setting the GEMINI_API_KEY environment variable to authenticate with Google's cloud services. You are now ready to generate high-fidelity imagery using simple terminal commands.

Use Cases

Nano Banana Pro excels in diverse scenarios, including but not limited to:

• Rapid Prototyping: Quickly generating low-resolution drafts (1K) to establish composition before committing to high-end render times.
• Image Refinement: Applying specific modifications to existing images by using the --input-image flag, allowing for color grading, adding elements, or changing styles.
• Asset Generation for Developers: Creating consistent iconography, UI backgrounds, or placeholder assets for software projects without leaving the CLI.
• Iterative Art Direction: Using the recommended draft-iterate-final workflow to refine prompts until the output matches the exact vision of the user.

Example Prompts

1. "Generate a cyberpunk-style cityscape at night with neon blue and pink lights, save it as city-night.png."
2. "Edit this portrait.png to add a vintage film grain effect and shift the color palette to sepia tones, save it as portrait-vintage.png."
3. "Create a high-resolution 4K wallpaper of a tranquil forest in autumn, call it forest-final.png."

Tips & Limitations

• Resolution Strategy: Always start with 1K resolution to verify your prompt, then scale up to 4K only when the output meets your standards to optimize API usage.
• Naming Conventions: Use the yyyy-mm-dd-hh-mm-ss-name.png format to maintain a clear audit trail of your iterations.
• API Keys: If you do not have a global environment variable set, remember to pass your key using the --api-key flag during each execution.
• Connectivity: This skill requires an active internet connection as it interfaces with the external Google Gemini API; ensure your firewall or network policy allows this traffic.