--- name: nanobanana-skill-83686efff77b description: Generate or edit images using Google Gemini API via nanobanana. Use when the user asks to create, generate, edit images with nanobanana, or mentions image generation/editing tasks. allowed-tools: Read, Write, Glob, Grep, Task, Bash(cat:*), Bash(ls:*), Bash(tree:*), Bash(python3:*) --- # Nanobanana Image Generation Skill Generate or edit images using Google Gemini API through the nanobanana tool. ## Requirements 1. **GEMINI_API_KEY**: Must be configured in `~/.nanobanana.env` or `export GEMINI_API_KEY=` 2. **Python3 with depedent packages installed**: google-genai, Pillow, python-dotenv. They could be installed via `python3 -m pip install -r ${CLAUDE_PLUGIN_ROOT}/skills/nanobanana-skill/requirements.txt` if not installed yet. 3. **Executable**: `${CLAUDE_PLUGIN_ROOT}/skills/nanobanana-skill/nanobanana.py` ## Instructions ### For image generation 1. Ask the user for: - What they want to create (the prompt) - Desired aspect ratio/size (optional, defaults to 9:16 portrait) - Output filename (optional, auto-generates UUID if not specified) - Model preference (optional, defaults to gemini-3-pro-image-preview) - Resolution (optional, defaults to 1K) 2. Run the nanobanana script with appropriate parameters: ```bash python3 ${CLAUDE_PLUGIN_ROOT}/skills/nanobanana-skill/nanobanana.py --prompt "description of image" --output "filename.png" ``` 3. Show the user the saved image path when complete ### For image editing 1. Ask the user for: - Input image file(s) to edit - What changes they want (the prompt) - Output filename (optional) 2. Run with input images: ```bash python3 ${CLAUDE_PLUGIN_ROOT}/skills/nanobanana-skill/nanobanana.py --prompt "editing instructions" --input image1.png image2.png --output "edited.png" ``` ## Available Options ### Aspect Ratios (--size) - `1024x1024` (1:1) - Square - `832x1248` (2:3) - Portrait - `1248x832` (3:2) - Landscape - `864x1184` (3:4) - Portrait - `1184x864` (4:3) - Landscape - `896x1152` (4:5) - Portrait - `1152x896` (5:4) - Landscape - `768x1344` (9:16) - Portrait (default) - `1344x768` (16:9) - Landscape - `1536x672` (21:9) - Ultra-wide ### Models (--model) - `gemini-3-pro-image-preview` (default) - Higher quality - `gemini-2.5-flash-image` - Faster generation ### Resolution (--resolution) - `1K` (default) - `2K` - `4K` ## Examples ### Generate a simple image ```bash python3 ${CLAUDE_PLUGIN_ROOT}/skills/nanobanana-skill/nanobanana.py --prompt "A serene mountain landscape at sunset with a lake" ``` ### Generate with specific size and output ```bash python3 ${CLAUDE_PLUGIN_ROOT}/skills/nanobanana-skill/nanobanana.py \ --prompt "Modern minimalist logo for a tech startup" \ --size 1024x1024 \ --output "logo.png" ``` ### Generate landscape image with high resolution ```bash python3 ${CLAUDE_PLUGIN_ROOT}/skills/nanobanana-skill/nanobanana.py \ --prompt "Futuristic cityscape with flying cars" \ --size 1344x768 \ --resolution 2K \ --output "cityscape.png" ``` ### Edit existing images ```bash python3 ${CLAUDE_PLUGIN_ROOT}/skills/nanobanana-skill/nanobanana.py \ --prompt "Add a rainbow in the sky" \ --input photo.png \ --output "photo-with-rainbow.png" ``` ### Use faster model ```bash python3 ${CLAUDE_PLUGIN_ROOT}/skills/nanobanana-skill/nanobanana.py \ --prompt "Quick sketch of a cat" \ --model gemini-2.5-flash-image \ --output "cat-sketch.png" ``` ## Error Handling If the script fails: - Check that `GEMINI_API_KEY` is exported or set in ~/.nanobanana.env - Verify input image files exist and are readable - Ensure the output directory is writable - If no image is generated, try making the prompt more specific about wanting an image ## Best Practices 1. Be descriptive in prompts - include style, mood, colors, composition 2. For logos/graphics, use square aspect ratio (1024x1024) 3. For social media posts, use 9:16 for stories or 1:1 for posts 4. For wallpapers, use 16:9 or 21:9 5. Start with 1K resolution for testing, upgrade to 2K/4K for final output 6. Use gemini-3-pro-image-preview for best quality, gemini-2.5-flash-image for speed --- Source attribution: Activer007 Original project: https://github.com/Activer007/ordinary-claude-skills/blob/e3e1b3d55f9a132a68d242040d23048a7ba8f85c/skills_all/nanobanana-skill/SKILL.md License: MIT License information: https://opensource.org/license/mit Original upstream instructions; downloaded from Mega AI Hub. ## Upstream license notice MIT License Copyright (c) 2025 Microck Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. i did not write most of these. i just collected them. * **anthropic skills:** mit license (mostly) * **community skills:** check the `LICENSE` file in each specific folder. credits go to https://github.com/anthropics, https://github.com/obra, https://github.com/ComposioHQ, and the other people listed in the source tables. if you own one of these and want me to take it down, just open an issue and i will nuke it. # Mega AI Hub resource metadata Creator / publisher: Activer007 Original project: https://github.com/Activer007/ordinary-claude-skills/blob/e3e1b3d55f9a132a68d242040d23048a7ba8f85c/skills_all/nanobanana-skill/SKILL.md Attribution basis: Source repository record Fields of work: Design, Marketing Roles: Content Marketer, Graphic Designer, Social Media Manager Specialties: API, Design Tools: Google Gemini, Nanobanana Country applicability: Country not specified Classification basis: Source catalog labels Instruction SHA-256: bcee35955f24315411b6de450703affee9e82f04b01c811abeb6c70b32e5956e