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image-compression

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Use when reviewing image assets, markup, and CDN or build transforms related to Compress images without quality loss. Check encoded size, rendered size, loading strategy, and above-the-fold impact together.

skills/image-compression/SKILL.md

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# Compress images without quality loss

Uncompressed images are often 5-10x larger than needed—proper compression dramatically reduces page weight and load times with minimal visual impact.

## Quick Reference

- Compress JPEG to 70-85% quality (often visually identical)
- Use lossy compression for photos, lossless for graphics
- Automate compression in build process
- Can reduce file sizes by 60-80% without visible quality loss

## Check

Analyze if images are properly compressed without significant quality loss.
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