| name | nano-banana |
| description | REQUIRED for all image generation requests. Generate and edit images using Gemini CLI with persistent visual memory via KV cache warmth. Use whenever the user asks to create, generate, make, draw, design, or edit any image or visual content. |
Nano Banana Image Generation
Generate images via Gemini CLI with persistent visual memory.
Core Insight: Two Warm Caches
Gemini maintains a KV cache across requests. Claude maintains context by seeing generated images. Use --resume latest to keep Gemini's cache warm across iterations.
Usage
gemini --yolo "/generate 'blue circle on white background'"
gemini --yolo --resume latest -p "/generate 'same circle but red'"
gemini --yolo --resume latest -p "/edit path/to/image.png 'make it darker'"
Critical: Always use --resume latest -p "..." for iterations.
Sessions are per-directory. Different directories = different visual memories.
Commands
| Command | Use Case |
|---|
/generate "prompt" | Text-to-image |
/edit image.png "instruction" | Modify existing |
/icon "description" | App icons, favicons |
/diagram "description" | Flowcharts, architecture |
/pattern "description" | Seamless textures |
See references/CLI.md for full command flags.
Output
Images save to ./nanobanana-output/ in the current directory.
Transparency
Gemini cannot output true alpha. Use difference matting: generate on white, edit to black, extract alpha. See references/TRANSPARENCY.md.
