aiskillstore/baoyu-compress-image
skills/jimliu/baoyu-compress-image/SKILL.md
Cross-platform image compression skill. Converts images to WebP by default with PNG-to-PNG support. Uses system tools (sips, cwebp, ImageMagick) with Sharp fallback.
$ install --global
skillsauthnpx skillsauth add aiskillstore/marketplace baoyu-compress-imageInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
Security Scan Results
3 of 9 scanners reported clean
Some scanners were skipped, did not run, or reported a non-clean status. Review each row below.
3
Scanners Passed
9
Scanners in report
Clean
TrivyContainer and dependency vulnerability scanner
95%
Clean
SemgrepStatic code analysis for vulnerabilities
95%
Clean
mcp-scan (Snyk)Model Context Protocol security validation
95%
Skipped
Snyk (dep)Open source security scanning
50%
Skipped
Socket.devSupply chain security analysis
50%
Skipped
VirusTotalMulti-engine malware detection
50%
Skipped
CrowdStrikeAdvanced threat intelligence
50%
Skipped
OSV-ScannerOpen Source Vulnerability database check
50%
Skipped
OWASP Dep-Check
50%
Last scanned: Mar 31, 2026, 4:15 AM57.0s3 files scanned
SKILL.md
- name:
- baoyu-compress-image
- description:
- Cross-platform image compression skill. Converts images to WebP by default with PNG-to-PNG support. Uses system tools (sips, cwebp, ImageMagick) with Sharp fallback.
Image Compressor
Cross-platform image compression with WebP default output, PNG-to-PNG support, preferring system tools with Sharp fallback.
Script Directory
Important: All scripts are located in the scripts/ subdirectory of this skill.
Agent Execution Instructions:
- Determine this SKILL.md file's directory path as
SKILL_DIR - Script path =
${SKILL_DIR}/scripts/<script-name>.ts - Replace all
${SKILL_DIR}in this document with the actual path
Script Reference:
| Script | Purpose |
|--------|---------|
| scripts/main.ts | CLI entry point for image compression |
Quick Start
# Compress to WebP (default)
npx -y bun ${SKILL_DIR}/scripts/main.ts image.png
# Keep original format (PNG → PNG)
npx -y bun ${SKILL_DIR}/scripts/main.ts image.png --format png
# Custom quality
npx -y bun ${SKILL_DIR}/scripts/main.ts image.png -q 75
# Process directory
npx -y bun ${SKILL_DIR}/scripts/main.ts ./images/ -r
Commands
Single File Compression
# Basic (converts to WebP, replaces original)
npx -y bun ${SKILL_DIR}/scripts/main.ts image.png
# Custom output path
npx -y bun ${SKILL_DIR}/scripts/main.ts image.png -o compressed.webp
# Keep original file
npx -y bun ${SKILL_DIR}/scripts/main.ts image.png --keep
# Custom quality (0-100, default: 80)
npx -y bun ${SKILL_DIR}/scripts/main.ts image.png -q 75
# Keep original format
npx -y bun ${SKILL_DIR}/scripts/main.ts image.png -f png
Directory Processing
# Process all images in directory
npx -y bun ${SKILL_DIR}/scripts/main.ts ./images/
# Recursive processing
npx -y bun ${SKILL_DIR}/scripts/main.ts ./images/ -r
# With custom quality
npx -y bun ${SKILL_DIR}/scripts/main.ts ./images/ -r -q 75
Output Formats
# Plain text (default)
npx -y bun ${SKILL_DIR}/scripts/main.ts image.png
# JSON output
npx -y bun ${SKILL_DIR}/scripts/main.ts image.png --json
Options
| Option | Short | Description | Default |
|--------|-------|-------------|---------|
| <input> | | Input file or directory | Required |
| --output <path> | -o | Output path | Same path, new extension |
| --format <fmt> | -f | webp, png, jpeg | webp |
| --quality <n> | -q | Quality 0-100 | 80 |
| --keep | -k | Keep original file | false |
| --recursive | -r | Process directories recursively | false |
| --json | | JSON output | false |
| --help | -h | Show help | |
Compressor Selection
Priority order (auto-detected):
- sips (macOS built-in, WebP support since macOS 11)
- cwebp (Google's official WebP tool)
- ImageMagick (
convertcommand) - Sharp (npm package, auto-installed by Bun)
The skill automatically selects the best available compressor.
Output Format
Text Mode (default)
image.png → image.webp (245KB → 89KB, 64% reduction)
JSON Mode
{
"input": "image.png",
"output": "image.webp",
"inputSize": 250880,
"outputSize": 91136,
"ratio": 0.36,
"compressor": "sips"
}
Directory JSON Mode
{
"files": [...],
"summary": {
"totalFiles": 10,
"totalInputSize": 2508800,
"totalOutputSize": 911360,
"ratio": 0.36,
"compressor": "sips"
}
}
Examples
Compress single image
npx -y bun ${SKILL_DIR}/scripts/main.ts photo.png
# photo.png → photo.webp (1.2MB → 340KB, 72% reduction)
Compress with custom quality
npx -y bun ${SKILL_DIR}/scripts/main.ts photo.png -q 60
# photo.png → photo.webp (1.2MB → 280KB, 77% reduction)
Keep original format
npx -y bun ${SKILL_DIR}/scripts/main.ts screenshot.png -f png --keep
# screenshot.png → screenshot-compressed.png (500KB → 380KB, 24% reduction)
Process entire directory
npx -y bun ${SKILL_DIR}/scripts/main.ts ./screenshots/ -r
# Processed 15 files: 12.5MB → 4.2MB (66% reduction)
Get JSON for scripting
npx -y bun ${SKILL_DIR}/scripts/main.ts image.png --json | jq '.ratio'
Extension Support
Custom configurations via EXTEND.md.
Check paths (priority order):
.baoyu-skills/baoyu-compress-image/EXTEND.md(project)~/.baoyu-skills/baoyu-compress-image/EXTEND.md(user)
If found, load before workflow. Extension content overrides defaults.
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