ReddRadar
Agent skill
image-generation
Generate and edit images using Gemini Flash Image, and generate videos using Veo. Supports text-to-image, image editing, text-to-video, and image-to-video.
Install this agent skill to your Project
npx add-skill https://github.com/sonichi/sutando/tree/main/skills/image-generation
SKILL.md
Media Generation
Generate images and videos using Gemini APIs.
Image Generation (Gemini Flash Image)
- Text-to-image: Generate images from text descriptions
- Image editing: Modify existing images with natural language
- Background replacement: Change or enhance backgrounds
- Hero/banner creation: Create branded images with text overlays
- Style transfer: Apply artistic styles to photos
Video Generation (Veo)
- Text-to-video: Generate video clips from text prompts
- Image-to-video: Animate a reference image with a prompt
When to Use
- "Generate a hero image for my project"
- "Create a short video of a sunset timelapse"
- "Edit this photo to remove the background"
- "Make a video from this image"
- "Generate a logo with a dark theme"
Usage
# Text-to-image
python3 "$SKILL_DIR/scripts/generate.py" --prompt "A futuristic city skyline at night"
# Edit an existing image
python3 "$SKILL_DIR/scripts/generate.py" --input photo.jpg --prompt "Add dramatic clouds"
# Specify output path
python3 "$SKILL_DIR/scripts/generate.py" --prompt "A cute robot mascot" --output mascot.png
# Text-to-video
python3 "$SKILL_DIR/scripts/generate.py" --video --prompt "A timelapse of a city at sunset"
# Video with portrait aspect ratio
python3 "$SKILL_DIR/scripts/generate.py" --video --prompt "Ocean waves" --aspect 9:16
# Image-to-video (animate a reference image)
python3 "$SKILL_DIR/scripts/generate.py" --video --input scene.jpg --prompt "Animate this scene with gentle wind"
# Specify output
python3 "$SKILL_DIR/scripts/generate.py" --video --prompt "Dancing robot" --output robot.mp4
Options
| Flag | Description | Default |
|---|---|---|
--prompt |
Text prompt describing what to generate | (required) |
--input |
Input image path(s) for editing/reference | None |
--output |
Output file path | generated-{timestamp}.png or .mp4 |
--model |
Gemini model to use | gemini-2.5-flash-image / veo-3.1-generate-preview |
--video |
Generate video instead of image | false |
--aspect |
Video aspect ratio | 16:9 |
--quality |
JPEG quality (1-100, images only) | 90 |
Requirements
google-genaiPython package (pip3 install google-genai)GEMINI_API_KEYin.envor environment- Pillow (
pip3 install Pillow) — for image generation/editing
Notes
- Video generation takes 1-3 minutes (polling every 10s)
- Generated videos are stored on Google servers for 2 days
- Gemini may refuse some prompts (people's faces, copyrighted characters, etc.)
- For image editing, be explicit: "keep the subject unchanged, only modify the background"
- Image output format inferred from extension (.jpg, .png, .webp)
- Maximum input image size: ~20MB
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