mandu-performance

Mandu 应用程序的性能优化模式。当您需要优化槽位处理器、Island 组件、包体积，或 Bun 运行时性能时，可选用此模式。本技能将自动触发与 async/await、Promise.all、懒加载、缓存机制，以及性能优化相关的任务。

SKILL.md

--- frontmatter

name: mandu-performance
description: |
  Performance optimization patterns for Mandu applications. Use when optimizing
  slot handlers, Island components, bundle size, or Bun runtime. Triggers on
  tasks involving async/await, Promise.all, lazy loading, caching, or performance.
license: MIT
metadata:
  author: mandu
  version: "1.0.0"

Mandu Performance

Mandu 애플리케이션의 성능 최적화 가이드. 워터폴 제거, 번들 최적화, 캐싱 패턴, Bun 런타임 활용법을 다룹니다. Vercel의 React Best Practices를 Mandu 컨텍스트로 변환하여 적용합니다.

When to Apply

Reference these guidelines when:

•Optimizing slot handler response times
•Reducing Island component bundle size
•Implementing caching strategies
•Working with async/await patterns
•Leveraging Bun runtime features

Rule Categories by Priority

Priority	Category	Impact	Prefix
1	Async Optimization	CRITICAL	`perf-async-`
2	Bundle Optimization	CRITICAL	`perf-bundle-`
3	Caching Strategies	HIGH	`perf-cache-`
4	Bun Runtime	HIGH	`perf-bun-`
5	Rendering	MEDIUM	`perf-render-`

Quick Reference

1. Async Optimization (CRITICAL)

•perf-async-parallel - Use Promise.all() for independent operations
•perf-async-defer-await - Move await into branches where actually used
•perf-async-early-start - Start promises early, await late

2. Bundle Optimization (CRITICAL)

•perf-bundle-imports - Import directly, avoid barrel files
•perf-bundle-island-lazy - Lazy load Islands with dynamic import
•perf-bundle-preload - Preload on hover/focus for perceived speed

3. Caching Strategies (HIGH)

•perf-cache-slot - Cache slot responses with appropriate TTL
•perf-cache-react - Use React.cache() for request deduplication
•perf-cache-lru - Use LRU cache for cross-request caching

4. Bun Runtime (HIGH)

•perf-bun-serve - Optimize Bun.serve() configuration
•perf-bun-file - Use Bun.file() for efficient file operations
•perf-bun-sqlite - Leverage bun:sqlite for fast database access

5. Rendering (MEDIUM)

•perf-render-island-priority - Set appropriate hydration priority
•perf-render-transitions - Use startTransition for non-urgent updates

Performance Impact Summary

Optimization	Typical Improvement
Promise.all()	2-10× faster
Direct imports	15-70% faster dev boot
Island lazy loading	40-60% smaller initial bundle
React.cache()	Eliminates duplicate queries
Bun.file()	10× faster than Node fs

How to Use

Read individual rule files for detailed explanations:

code

rules/perf-async-parallel.md
rules/perf-bundle-imports.md
rules/perf-bun-serve.md