How do I install the Nano Banana Antigravity skill?

Run npx skillmds@latest add sundial-org/nano-banana-antigravity in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

What does the Nano Banana Antigravity skill do?

Generate or edit images via Nano Banana Pro using Antigravity OAuth (no API key needed!) It is listed under Integrations & APIs on SkillMD.

Is Nano Banana Antigravity safe to use?

This skill has not completed SkillMD's automated safety review yet. Independent scanners report: SkillSpector: PASS, Skill Scanner: PASS. Capability flags: executes scripts. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Nano Banana Antigravity?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Nano Banana Antigravity free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Nano Banana Antigravity?

sundial-org (@sundial-org) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Nano Banana Antigravity by sundial-org

Name: Nano Banana Antigravity
Rating: 4.2 (5 reviews)
Author: sundial-org

File contents

Nano Banana Antigravity (Gemini 3 Pro Image via OAuth)

Generate images using Nano Banana Pro (Gemini 3 Pro Image) via your existing Google Antigravity OAuth credentials.

No separate API key needed! Uses the same OAuth tokens as your OpenClaw Antigravity provider.

Generate Image

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

Generate with Options

uv run {baseDir}/scripts/generate_image.py \
  --prompt "a sunset over mountains" \
  --filename "sunset.png" \
  --aspect-ratio 16:9 \
  --resolution 2K

Edit/Composite Images

uv run {baseDir}/scripts/generate_image.py \
  --prompt "add sunglasses to this person" \
  --filename "edited.png" \
  -i original.png

Multi-image Composition

uv run {baseDir}/scripts/generate_image.py \
  --prompt "combine these into one scene" \
  --filename "composite.png" \
  -i image1.png -i image2.png -i image3.png

Options

--prompt, -p (required): Image description or edit instructions
--filename, -f (required): Output filename
--input-image, -i: Input image(s) for editing (can be repeated)
--aspect-ratio, -a: 1:1 (default), 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9
--resolution, -r: 1K (default), 2K, 4K

Authentication

Uses existing OpenClaw Antigravity OAuth credentials. Make sure you're authenticated:

openclaw models auth login --provider google-antigravity

The script looks for credentials in:

~/.openclaw/credentials/google-antigravity.json
~/.config/openclaw/credentials/google-antigravity.json
~/.config/opencode/antigravity-accounts.json

Notes

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.
Uses timestamps in filenames for uniqueness: yyyy-mm-dd-hh-mm-ss-name.png
Falls back to regular Nano Banana if Nano Banana Pro isn't available yet.

--- name: nano-banana-antigravity description: Generate or edit images via Nano Banana Pro using Antigravity OAuth (no API key needed!) homepage: https://antigravity.google metadata: {"openclaw":{"emoji":"🍌","requires":{"bins":["uv"]}}} --- # Nano Banana Antigravity (Gemini 3 Pro Image via OAuth) Generate images using Nano Banana Pro (Gemini 3 Pro Image) via your existing Google Antigravity OAuth credentials. **No separate API key needed!** Uses the same OAuth tokens as your OpenClaw Antigravity provider. ## Generate Image ```bash uv run {baseDir}/scripts/generate_image.py --prompt "your image description" --filename "output.png" ``` ## Generate with Options ```bash uv run {baseDir}/scripts/generate_image.py \ --prompt "a sunset over mountains" \ --filename "sunset.png" \ --aspect-ratio 16:9 \ --resolution 2K ``` ## Edit/Composite Images ```bash uv run {baseDir}/scripts/generate_image.py \ --prompt "add sunglasses to this person" \ --filename "edited.png" \ -i original.png ``` ## Multi-image Composition ```bash uv run {baseDir}/scripts/generate_image.py \ --prompt "combine these into one scene" \ --filename "composite.png" \ -i image1.png -i image2.png -i image3.png ``` ## Options - `--prompt, -p` (required): Image description or edit instructions - `--filename, -f` (required): Output filename - `--input-image, -i`: Input image(s) for editing (can be repeated) - `--aspect-ratio, -a`: 1:1 (default), 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9 - `--resolution, -r`: 1K (default), 2K, 4K ## Authentication Uses existing OpenClaw Antigravity OAuth credentials. Make sure you're authenticated: ```bash openclaw models auth login --provider google-antigravity ``` The script looks for credentials in: - `~/.openclaw/credentials/google-antigravity.json` - `~/.config/openclaw/credentials/google-antigravity.json` - `~/.config/opencode/antigravity-accounts.json` ## Notes - 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. - Uses timestamps in filenames for uniqueness: `yyyy-mm-dd-hh-mm-ss-name.png` - Falls back to regular Nano Banana if Nano Banana Pro isn't available yet.

Frequently asked questions

Nano Banana Antigravity