image-optimization
Optimize images for web to reduce file size without sacrificing quality. Use compression, modern formats, and responsive techniques for faster loading.
- Installs
- 656
- Last 24h
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- Security
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Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/aj-geddes/useful-ai-prompts --skill image-optimization- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads image-optimization automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
Image Optimization
Table of Contents
Overview
Images typically comprise 50% of page weight. Optimization dramatically improves performance, especially on mobile networks.
When to Use
- Website optimization
- Responsive image implementation
- Performance improvement
- Mobile experience enhancement
- Before deployment
Quick Start
Minimal working example:
Format Selection:
JPEG:
Best for: Photographs, complex images
Compression: Lossy (quality 70-85)
Size: ~50-70% reduction
Tools: ImageMagick, TinyJPEG
Command: convert image.jpg -quality 75 optimized.jpg
PNG:
Best for: Icons, screenshots, transparent images
Compression: Lossless
Size: 10-30% reduction
Tools: PNGQuant, OptiPNG
Command: optipng -o3 image.png
WebP:
Best for: Modern browsers (90% support)
Compression: 25-35% better than JPEG/PNG
Fallback: Use <picture> element
Tools: cwebp
Command: cwebp -q 75 image.jpg -o image.webp
SVG:
Best for: Icons, logos, simple graphics
// ... (see reference guides for full implementation)
Reference Guides
Detailed implementations in the references/ directory:
| Guide | Contents |
|---|---|
| Image Compression & Formats | Image Compression & Formats |
| Responsive Images | Responsive Images |
| Optimization Process | Optimization Process |
| Monitoring & Best Practices | Monitoring & Best Practices |
Best Practices
✅ DO
- Follow established patterns and conventions
- Write clean, maintainable code
- Add appropriate documentation
- Test thoroughly before deploying
❌ DON'T
- Skip testing or validation
- Ignore error handling
- Hard-code configuration values
FAQ
What does the image-optimization skill do?
Optimize images for web to reduce file size without sacrificing quality. Use compression, modern formats, and responsive techniques for faster loading.
How do I install image-optimization?
Run npx skills add https://github.com/aj-geddes/useful-ai-prompts --skill image-optimization in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/image-optimization/ (personal) or .claude/skills/image-optimization/ (project).
Which AI agents can use image-optimization?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is image-optimization safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains image-optimization?
It is published by aj-geddes in aj-geddes/useful-ai-prompts. It has 656 recorded installs.
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