nano-banana-pro
$
npx mdskill add TermiX-official/cryptoclaw/nano-banana-proGenerate or edit images using Gemini 3 Pro Image via command-line scripts for AI agents handling visual content.
- Helps create new images or modify existing ones based on text prompts and input files.
- Integrates with Google's Gemini 3 Pro Image API and requires a GEMINI_API_KEY environment variable.
- Executes based on user-provided prompts, filenames, resolutions, and optional input image paths.
- Outputs images to specified files and prints a MEDIA line for automatic attachment in OpenClaw.
SKILL.md
.github/skills/nano-banana-proView on GitHub ↗
---
name: nano-banana-pro
description: Generate or edit images via Gemini 3 Pro Image (Nano Banana Pro).
homepage: https://ai.google.dev/
metadata:
{
"openclaw":
{
"emoji": "🍌",
"requires": { "bins": ["uv"], "env": ["GEMINI_API_KEY"] },
"primaryEnv": "GEMINI_API_KEY",
"install":
[
{
"id": "uv-brew",
"kind": "brew",
"formula": "uv",
"bins": ["uv"],
"label": "Install uv (brew)",
},
],
},
}
---
# Nano Banana Pro (Gemini 3 Pro Image)
Use the bundled script to generate or edit images.
Generate
```bash
uv run {baseDir}/scripts/generate_image.py --prompt "your image description" --filename "output.png" --resolution 1K
```
Edit (single image)
```bash
uv run {baseDir}/scripts/generate_image.py --prompt "edit instructions" --filename "output.png" -i "/path/in.png" --resolution 2K
```
Multi-image composition (up to 14 images)
```bash
uv run {baseDir}/scripts/generate_image.py --prompt "combine these into one scene" --filename "output.png" -i img1.png -i img2.png -i img3.png
```
API key
- `GEMINI_API_KEY` env var
- Or set `skills."nano-banana-pro".apiKey` / `skills."nano-banana-pro".env.GEMINI_API_KEY` in `~/.openclaw/openclaw.json`
Notes
- Resolutions: `1K` (default), `2K`, `4K`.
- Use timestamps in filenames: `yyyy-mm-dd-hh-mm-ss-name.png`.
- The script prints a `MEDIA:` line for OpenClaw to auto-attach on supported chat providers.
- Do not read the image back; report the saved path only.