Agent skill · bighardperson
nano-banana-pro
Generate/edit images with Nano Banana Pro (Gemini 3 Pro Image). Use for image create/modify requests incl. edits. Supports text-to-image + image-to-image; 1K/2K/4K; use --input-image.
What it needs
About 1k tokens when loaded.
What this skill does
Nano Banana Pro Image Generation & Editing Generate new images or edit existing ones using Google's Nano Banana Pro API (Gemini 3 Pro Image). Usage Run the script using absolute path (do NOT cd to skill directory first): Generate new image: Edit existing image: Important: Always run from the user's current working directory so images are saved where the user is working. Default Workflow (draft > iterate > final) Draft (1K): quick feedback loop Iterate: adjust prompt in small diffs; keep filename new per run Final (4K): only when prompt is locked Resolution Options 1K (default) - ~1024px resolution 2K - ~2048px resolution 4K - ~4096px resolution API Key 1. --api-key argument 2. GEMINIAPIKEY environment variable Image Editing Use --input-image parameter with the path to the image. The prompt should contain editing instructions. Prompt Handling For generation: Pass user's image description as-is to --prompt. For editing: Pass editing instructions in --prompt. Output Saves PNG to current directory Script outputs the full path to the generated image Do not read the image back - just inform the user of the saved path
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills bighardperson/AI绘图