webp-skill

name	webp-skill
description	Compresses PNG images to WebP format using ffmpeg. Use when user asks to "convert png to webp", "compress to webp", "png转webp", "压缩成webp", or reduce PNG file size.
version	1.0.0
metadata	{"requires":{"anyBins":["ffmpeg","bun"]}}

PNG → WebP Compressor

Converts PNG images to WebP format via ffmpeg. Simple, lossy/lossless WebP encoding with configurable quality.

Script Directory

Scripts in scripts/ subdirectory. {baseDir} = this SKILL.md's directory path. Replace {baseDir} with actual value.

Script	Purpose
scripts/compress.ts	PNG → WebP conversion CLI

Usage

bun {baseDir}/scripts/compress.ts <input> [options]

Options

Option	Short	Description	Default
<input>		PNG file path(s) — supports glob patterns	Required
--output	-o	Output file or directory	Same path, .webp ext
--quality	-q	Quality 0–100	80
--lossless	-l	Lossless WebP encoding (ignores quality)	false
--keep	-k	Keep original PNG	false

Examples

# Basic conversion (quality 80)
bun {baseDir}/scripts/compress.ts image.png

# High quality
bun {baseDir}/scripts/compress.ts image.png -q 90

# Lossless
bun {baseDir}/scripts/compress.ts image.png --lossless

# Keep original
bun {baseDir}/scripts/compress.ts image.png -k

# Convert all PNGs in a directory
bun {baseDir}/scripts/compress.ts "images/*.png"

# Custom output path
bun {baseDir}/scripts/compress.ts image.png -o output.webp

Output:

image.png → image.webp (1024KB → 89KB, 91% reduction)