wasm-optimizer

Analyzes JavaScript/TypeScript code for bottlenecks and recommends WASM library replacements.

Updated Aug 27, 2026

Search Tags:#typescript #performance #optimization #javascript #wasm #webassembly

Ready to run

npx skills add https://github.com/UtakataKyosui/C2Lab --skill wasm-optimizer-utakatakyosui

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: wasm-optimizer
Source: https://github.com/UtakataKyosui/C2Lab/tree/main/plugins/wasm-optimizer/skills/wasm-optimizer
Command: npx skills add https://github.com/UtakataKyosui/C2Lab --skill wasm-optimizer-utakatakyosui

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill identifies performance bottlenecks in JavaScript/TypeScript code, particularly those involving heavy computations, and suggests optimizations by leveraging WebAssembly (WASM) or other high-performance libraries.

Core Features & Use Cases

Performance Bottleneck Detection: Analyzes code for patterns known to be slow in JS (e.g., nested loops, heavy image processing, complex parsing).
WASM Optimization Suggestions: Recommends specific WASM libraries (like wasm-vips, libsodium-wrappers, simd_json_wasm) as faster alternatives.
Use Case: You have a web application that processes large images client-side, and it's become sluggish. This Skill can analyze the image processing code and suggest replacing it with a WASM-based library like wasm-vips for a significant speedup.

Quick Start

Use the wasm-optimizer skill to analyze the performance of the image processing functions in './src/imageUtils.js'.

Frequently Asked Questions about wasm-optimizer

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I optimize slow JavaScript image processing performance?▼

Optimize slow JavaScript image processing by analyzing the code for heavy computations and replacing those bottlenecks with WebAssembly libraries like wasm-vips for significant execution speedup.

When should I use WebAssembly instead of JavaScript for heavy computations?▼

Use WebAssembly instead of JavaScript when your code features performance-intensive patterns like nested loops, complex parsing, or cryptographic functions that create noticeable execution bottlenecks.

What is the best way to speed up cryptographic functions in TypeScript?▼

Speed up cryptographic functions in TypeScript by analyzing the code for slow patterns and swapping the implementation with high-performance WASM libraries like libsodium-wrappers.

Can I use WebAssembly to optimize large data parsing in client-side JavaScript?▼

You can optimize large data parsing in client-side JavaScript by replacing slow parsing logic with high-performance WASM libraries like simd_json_wasm for faster execution.

Does this approach work for both client-side and server-side JavaScript environments?▼

This optimization approach works for both client-side and server-side JavaScript environments, utilizing WASM libraries to deliver speed improvements for heavy computations across your stack.

How do I analyze my codebase to find performance bottlenecks for WASM replacement?▼

Analyze your codebase for performance bottlenecks by targeting specific functions, such as image processing utilities, to detect computationally expensive patterns suitable for WASM replacement.