baoyu-compress-image
Compresses images to WebP (default) or PNG with automatic tool selection. Use when user asks to "compress image", "optimize image", "convert to webp", or reduce image file size.
Image Compressor
Compresses images using best available tool (sips → cwebp → ImageMagick → Sharp).
Script Directory
Scripts in scripts/ subdirectory. Replace ${SKILL_DIR} with this SKILL.md's directory path.
| Script | Purpose |
|---|---|
scripts/main.ts | Image compression CLI |
Preferences (EXTEND.md)
Use Bash to check EXTEND.md existence (priority order):
# Check project-level first
test -f .baoyu-skills/baoyu-compress-image/EXTEND.md && echo "project"Then user-level (cross-platform: $HOME works on macOS/Linux/WSL)
test -f "$HOME/.baoyu-skills/baoyu-compress-image/EXTEND.md" && echo "user"┌────────────────────────────────────────────────────────┬───────────────────┐
│ Path │ Location │
├────────────────────────────────────────────────────────┼───────────────────┤
│ .baoyu-skills/baoyu-compress-image/EXTEND.md │ Project directory │
├────────────────────────────────────────────────────────┼───────────────────┤
│ $HOME/.baoyu-skills/baoyu-compress-image/EXTEND.md │ User home │
└────────────────────────────────────────────────────────┴───────────────────┘
┌───────────┬───────────────────────────────────────────────────────────────────────────┐
│ Result │ Action │
├───────────┼───────────────────────────────────────────────────────────────────────────┤
│ Found │ Read, parse, apply settings │
├───────────┼───────────────────────────────────────────────────────────────────────────┤
│ Not found │ Use defaults │
└───────────┴───────────────────────────────────────────────────────────────────────────┘
EXTEND.md Supports: Default format | Default quality | Keep original preference
Usage
npx -y bun ${SKILL_DIR}/scripts/main.ts <input> [options]Options
| Option | Short | Description | Default |
|---|---|---|---|
<input> | File or directory | Required | |
--output | -o | Output path | Same path, new ext |
--format | -f | webp, png, jpeg | webp |
--quality | -q | Quality 0-100 | 80 |
--keep | -k | Keep original | false |
--recursive | -r | Process subdirs | false |
--json | JSON output | false |
Examples
# Single file → WebP (replaces original)
npx -y bun ${SKILL_DIR}/scripts/main.ts image.pngKeep PNG format
npx -y bun ${SKILL_DIR}/scripts/main.ts image.png -f png --keepDirectory recursive
npx -y bun ${SKILL_DIR}/scripts/main.ts ./images/ -r -q 75JSON output
npx -y bun ${SKILL_DIR}/scripts/main.ts image.png --jsonOutput:
image.png → image.webp (245KB → 89KB, 64% reduction)Extension Support
Custom configurations via EXTEND.md. See Preferences section for paths and supported options.