nano-banana-pro

What This Skill Does

Nano Banana Pro (Gemini 3 Pro Image) is a high-performance image processing skill integrated into the OpenClaw ecosystem. It leverages the advanced generative capabilities of the Gemini 3 Pro model to allow users to generate, manipulate, and compose high-quality visual content directly through their terminal or agent interface. By utilizing the bundled generate_image.py script, users can perform complex image operations—such as style transfers, scene expansions, or multi-asset compositions—without needing external design software.

Installation

To integrate Nano Banana Pro into your environment, use the OpenClaw hub CLI by running the following command:

clawhub install openclaw/skills/skills/autogame-17/nano-banana-ultra

After installation, ensure that your GEMINI_API_KEY is configured correctly. You can set this as a global environment variable or define it within your ~/.clawdbot/openclaw.json configuration file under skills.nano-banana-pro.apiKey for a cleaner, skill-specific setup.

Use Cases

Nano Banana Pro is highly versatile. Developers use it to generate placeholder assets or UI icons during rapid prototyping. Content creators can use the composition feature to stitch together disparate screenshots or reference images into a single cohesive layout. Additionally, its ability to accept modification prompts makes it perfect for iterative design work, such as adjusting the lighting, color scheme, or artistic style of an existing image without starting from scratch.

Example Prompts

1. "Nano Banana Pro, generate a 2K resolution image of a cyberpunk street market with glowing neon signs and heavy rain."
2. "Use the existing file 'design_v1.png' to edit the color palette to be more sunset-oriented and save it as 'design_v2.png'."
3. "Take these three assets, 'ui_button.png', 'ui_header.png', and 'ui_footer.png' and composite them into a single high-resolution mobile app screen mockup."

Tips & Limitations

• Resolution Scaling: Always specify your resolution ('1K', '2K', or '4K') to optimize processing time and quality. The default is 1K.
• File Management: Use descriptive timestamps (yyyy-mm-dd-hh-mm-ss) in your filenames to prevent accidental overwrites in your working directory.
• Operational Efficiency: The script automatically generates a 'MEDIA:' output line. Do not attempt to read the binary data of the image back into the prompt context; instead, rely on the saved file path reported by the agent.
• Security: Ensure your API key is managed securely in the config file. As this tool performs local file writing, always verify your working directory before running batch compositions.