Claude-skill-registry gemini-gen

Generates images using Google's Gemini model. Prioritizes standard resolution to save quota. Automatically opens images on macOS.

install

source · Clone the upstream repo

git clone https://github.com/majiayu000/claude-skill-registry

Claude Code · Install into ~/.claude/skills/

T=$(mktemp -d) && git clone --depth=1 https://github.com/majiayu000/claude-skill-registry "$T" && mkdir -p ~/.claude/skills && cp -r "$T/skills/data/gemini-gen" ~/.claude/skills/majiayu000-claude-skill-registry-gemini-gen && rm -rf "$T"

manifest: skills/data/gemini-gen/SKILL.md

Gemini Image Generator

This skill generates images using Google's Gemini model. It is configured to be cost-efficient by defaulting to standard resolution models.

Usage

python3 {script_path} "Prompt" [--model model_name] [--output filename.png] [--no-open]

IMPORTANT: Model Selection Policy (Quota Saving)

Always default to standard resolution models. Do NOT use 4K models unless the user explicitly mentions "4K", "Ultra HD", or "High Definition".

Available Models

Model Name	Aspect Ratio	Resolution	Cost Category
`gemini-3-pro-image` (Default)	1:1	Standard	Low (Recommended)
`gemini-3-pro-image-16x9`	16:9	Standard	Low (Recommended)
`gemini-3-pro-image-9x16`	9:16	Standard	Low (Recommended)
`gemini-3-pro-image-4k`	1:1	4K	High
`gemini-3-pro-image-4k-16x9`	16:9	4K	High
`gemini-3-pro-image-4k-9x16`	9:16	4K	High

Decision Logic for Alma

Default: Use
```
gemini-3-pro-image
```
.
Aspect Ratio:
- If "landscape/widescreen/16:9", use
```
gemini-3-pro-image-16x9
```
  .
- If "portrait/mobile/9:16", use
```
gemini-3-pro-image-9x16
```
  .
4K (Only if explicitly requested):
- Only upgrade to a
```
-4k
```
  model if the user explicitly says "4K" or equivalent high-res keywords.

Note on Display

Alma's chat UI does not render local images. The skill uses

open

to show the image in the system viewer.