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nano-banana-pro

★ 3

by firecrawl · part of firecrawl/openclaw

Generates a new image from a text prompt, edits an existing image, or composes up to fourteen images into one scene, using Google's Gemini 3 Pro Image model.

🔥🔥🔥✓ VerifiedAccount requiredNeeds API keys
🔌 Needs uv and a Gemini API key. Set that up first — this skill doesn't include it. One of 59 skills in the firecrawl/openclaw package.

WHEN YOUR AGENT SHOULD USE IT

A QUICK BOUNDARY

USE FOR

  • Create an image from a written description at 1K, 2K, or 4K resolution.
  • Edit an existing image by describing the change you want made to it.
  • Combine several separate images into a single composed scene.

This is the playbook your agent receives when the skill activates — you don't need to read it to use the skill, but it's here to audit before installing.

Nano Banana Pro (Gemini 3 Pro Image)

Use the bundled script to generate or edit images.

Generate

uv run {baseDir}/scripts/generate_image.py --prompt "your image description" --filename "output.png" --resolution 1K

Edit (single image)

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)

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.