How do I install the Nano Banana Pro skill?

Run npx skillmds@latest add happycapy-ai/nano-banana-pro-2 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 Pro skill do?

Generate or edit images via Gemini 3 Pro Image (Nano Banana Pro) with AI Gateway support. It is listed under Coding & Dev Tools on SkillMD.

Is Nano Banana Pro safe to use?

This skill has not completed SkillMD's automated safety review yet. Capability flags: executes scripts, reads secrets. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Nano Banana Pro?

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 Pro free to use?

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

Who published Nano Banana Pro?

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

Nano Banana Pro by happycapy-ai — Agent Skill

Name: Nano Banana Pro
Rating: 4.2 (5 reviews)
Author: happycapy-ai

File contents

Nano Banana Pro (Gemini 3 Pro Image)

Generate or edit images using Gemini 3 Pro Image via AI Gateway or direct API.

Quick Start

Generate an image:

python3 {baseDir}/scripts/generate_image.py \
  --prompt "your image description" \
  --filename "output.png" \
  --resolution 1K

Usage Examples

Generate Image

python3 {baseDir}/scripts/generate_image.py \
  --prompt "a cute cat sitting on a wooden floor" \
  --filename "cat.png"

Edit Image (requires GEMINI_API_KEY)

Note: Image editing currently requires direct Gemini API access.

export GEMINI_API_KEY="your-gemini-key"
python3 {baseDir}/scripts/generate_image.py \
  --prompt "make it more colorful" \
  --filename "cat-colorful.png" \
  -i "cat.png"

Multi-image Composition (up to 14 images, requires GEMINI_API_KEY)

python3 {baseDir}/scripts/generate_image.py \
  --prompt "combine these into one scene" \
  --filename "combined.png" \
  -i img1.png -i img2.png -i img3.png

API Key Configuration

The skill automatically detects API keys in this priority order:

AI_GATEWAY_API_KEY (recommended) - Uses AI Gateway
GEMINI_API_KEY - Direct Gemini API access
--api-key argument - Manual key override

Recommended: AI Gateway (default)

export AI_GATEWAY_API_KEY="your-gateway-key"  # Usually pre-configured

✅ No additional dependencies required ✅ Cost-efficient and unified API management ❌ Image editing not currently supported

Alternative: Direct Gemini API

export GEMINI_API_KEY="your-gemini-key"

✅ Supports image editing and multi-image composition ❌ Requires google-genai package: pip install google-genai

Options

--prompt, -p: Image description (required)
--filename, -f: Output filename (required)
--resolution, -r: Resolution (1K, 2K, 4K, default: 1K)
--input-image, -i: Input image(s) for editing (up to 14, requires GEMINI_API_KEY)
--api-key, -k: Manual API key override

Notes

Resolutions: 1K (default), 2K, 4K
Use descriptive filenames with timestamps: 2024-12-31-cat.png
The script outputs a MEDIA: line for OpenClaw integration
AI Gateway mode works with standard Python 3, no extra tools needed

---name: nano-banana-pro-2description: Generate or edit images via Gemini 3 Pro Image (Nano Banana Pro) with AI Gateway support.--- # Nano Banana Pro (Gemini 3 Pro Image) Generate or edit images using Gemini 3 Pro Image via AI Gateway or direct API. ## Quick Start Generate an image: ```bash python3 {baseDir}/scripts/generate_image.py \ --prompt "your image description" \ --filename "output.png" \ --resolution 1K ``` ## Usage Examples ### Generate Image ```bash python3 {baseDir}/scripts/generate_image.py \ --prompt "a cute cat sitting on a wooden floor" \ --filename "cat.png" ``` ### Edit Image (requires GEMINI_API_KEY) **Note**: Image editing currently requires direct Gemini API access. ```bash export GEMINI_API_KEY="your-gemini-key" python3 {baseDir}/scripts/generate_image.py \ --prompt "make it more colorful" \ --filename "cat-colorful.png" \ -i "cat.png" ``` ### Multi-image Composition (up to 14 images, requires GEMINI_API_KEY) ```bash python3 {baseDir}/scripts/generate_image.py \ --prompt "combine these into one scene" \ --filename "combined.png" \ -i img1.png -i img2.png -i img3.png ``` ## API Key Configuration The skill automatically detects API keys in this priority order: 1. **`AI_GATEWAY_API_KEY`** (recommended) - Uses AI Gateway 2. **`GEMINI_API_KEY`** - Direct Gemini API access 3. **`--api-key` argument** - Manual key override ### Recommended: AI Gateway (default) ```bash export AI_GATEWAY_API_KEY="your-gateway-key" # Usually pre-configured ``` ✅ No additional dependencies required ✅ Cost-efficient and unified API management ❌ Image editing not currently supported ### Alternative: Direct Gemini API ```bash export GEMINI_API_KEY="your-gemini-key" ``` ✅ Supports image editing and multi-image composition ❌ Requires `google-genai` package: `pip install google-genai` ## Options - `--prompt, -p`: Image description (required) - `--filename, -f`: Output filename (required) - `--resolution, -r`: Resolution (`1K`, `2K`, `4K`, default: `1K`) - `--input-image, -i`: Input image(s) for editing (up to 14, requires GEMINI_API_KEY) - `--api-key, -k`: Manual API key override ## Notes - Resolutions: `1K` (default), `2K`, `4K` - Use descriptive filenames with timestamps: `2024-12-31-cat.png` - The script outputs a `MEDIA:` line for OpenClaw integration - AI Gateway mode works with standard Python 3, no extra tools needed

Frequently asked questions

Nano Banana Pro