---
id: swarmclawai/swarmclaw/nano-banana-pro
version: "d77ece56"
license: MIT
install: manual
updated: 2026-06-30
---

# nano-banana-pro — Nano Banana Pro harnesses Gemini 3 Pro's image capabilities to generate, edit, and composite images through simple command-line scripts. Supports text-to-image generation at multiple resolutions, single-image editing, and multi-image composition with customizable aspect ratios.

Publisher: swarmclawai · Stars: 628 · Updated: 2026-06-30

Install (manual): `git clone https://github.com/swarmclawai/swarmclaw`

## SKILL.md

# 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

Set `GEMINI_API_KEY` as an environment variable, or pass `--api-key <KEY>` to the script.

## Aspect Ratio (optional)

```bash
uv run {baseDir}/scripts/generate_image.py --prompt "portrait photo" --filename "output.png" --aspect-ratio 9:16
```

## Notes

- Resolutions: `1K` (default), `2K`, `4K`.
- Aspect ratios: `1:1`, `2:3`, `3:2`, `3:4`, `4:3`, `4:5`, `5:4`, `9:16`, `16:9`, `21:9`. Without `--aspect-ratio`, the model picks freely.
- Use timestamps in filenames for uniqueness: `yyyy-mm-dd-hh-mm-ss-name.png`.
- Do not read the image back into context; report the saved path only.


[View on SkillFed](https://skillfed.io/swarmclawai/swarmclaw/nano-banana-pro) · [View on GitHub](https://github.com/swarmclawai/swarmclaw)