2d-games
무료2D game development principles. Sprites, tilemaps, physics, camera.
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VoDaiLocz/kilo-kit-mcp282026년 9월 13일 업데이트
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react-patterns
Modern React patterns and principles. Hooks, composition, performance, TypeScript best practices.
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React Patterns
Principles for building production-ready React applications.
1. Component Design Principles
Component Types
| Type | Use | State |
|---|---|---|
| Server | Data fetching, static | None |
| Client | Interactivity | useState, effects |
| Presentational | UI display | Props only |
| Container | Logic/state | Heavy state |
Design Rules
- One responsibility per component
- Props down, events up
- Composition over inheritance
- Prefer small, focused components
2. Hook Patterns
When to Extract Hooks
| Pattern | Extract When |
|---|---|
| useLocalStorage | Same storage logic needed |
| useDebounce | Multiple debounced values |
| useFetch | Repeated fetch patterns |
| useForm | Complex form state |
Hook Rules
- Hooks at top level only
- Same order every render
- Custom hooks start with "use"
- Clean up effects on unmount
3. State Management Selection
| Complexity | Solution |
|---|---|
| Simple | useState, useReducer |
| Shared local | Context |
| Server state | React Query, SWR |
| Complex global | Zustand, Redux Toolkit |
State Placement
| Scope | Where |
|---|---|
| Single component | useState |
| Parent-child | Lift state up |
| Subtree | Context |
| App-wide | Global store |
4. React 19 Patterns
New Hooks
| Hook | Purpose |
|---|---|
| useActionState | Form submission state |
| useOptimistic | Optimistic UI updates |
| use | Read resources in render |
Compiler Benefits
- Automatic memoization
- Less manual useMemo/useCallback
- Focus on pure components
5. Composition Patterns
Compound Components
- Parent provides context
- Children consume context
- Flexible slot-based composition
- Example: Tabs, Accordion, Dropdown
Render Props vs Hooks
| Use Case | Prefer |
|---|---|
| Reusable logic | Custom hook |
| Render flexibility | Render props |
| Cross-cutting | Higher-order component |
6. Performance Principles
When to Optimize
| Signal | Action |
|---|---|
| Slow renders | Profile first |
| Large lists | Virtualize |
| Expensive calc | useMemo |
| Stable callbacks | useCallback |
Optimization Order
- Check if actually slow
- Profile with DevTools
- Identify bottleneck
- Apply targeted fix
7. Error Handling
Error Boundary Usage
| Scope | Placement |
|---|---|
| App-wide | Root level |
| Feature | Route/feature level |
| Component | Around risky component |
Error Recovery
- Show fallback UI
- Log error
- Offer retry option
- Preserve user data
8. TypeScript Patterns
Props Typing
| Pattern | Use |
|---|---|
| Interface | Component props |
| Type | Unions, complex |
| Generic | Reusable components |
Common Types
| Need | Type |
|---|---|
| Children | ReactNode |
| Event handler | MouseEventHandler |
| Ref | RefObject<Element> |
9. Testing Principles
| Level | Focus |
|---|---|
| Unit | Pure functions, hooks |
| Integration | Component behavior |
| E2E | User flows |
Test Priorities
- User-visible behavior
- Edge cases
- Error states
- Accessibility
10. Anti-Patterns
| ❌ Don't | ✅ Do |
|---|---|
| Prop drilling deep | Use context |
| Giant components | Split smaller |
| useEffect for everything | Server components |
| Premature optimization | Profile first |
| Index as key | Stable unique ID |
Remember: React is about composition. Build small, combine thoughtfully.
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3d-games
무료3D game development principles. Rendering, shaders, physics, cameras.
한국어 요약은 준비 중입니다. 원문 설명을 표시하고 있습니다.
VoDaiLocz/kilo-kit-mcp282026년 9월 13일 업데이트
Create aesthetically beautiful interfaces following proven design principles. Use when building UI/UX, analyzing designs from inspiration sites, generating design images with ai-multimodal, implementing visual hierarchy and color theory, adding micro-interactions, or creating design documentation. Includes workflows for capturing and analyzing inspiration screenshots with chrome-devtools and ai-multimodal, iterative design image generation until aesthetic standards are met, and comprehensive design system guidance covering BEAUTIFUL (aesthetic principles), RIGHT (functionality/accessibility), SATISFYING (micro-interactions), and PEAK (storytelling) stages. Integrates with chrome-devtools, ai-multimodal, media-processing, ui-styling, and web-frameworks skills.
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VoDaiLocz/kilo-kit-mcp282026년 9월 13일 업데이트
Use when implementing or managing persistent, hierarchical memory systems for AI agents. Covers cross-session state, fact supersession, and self-managed memory tools to enable long-term recall and adaptive agent behavior.
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VoDaiLocz/kilo-kit-mcp282026년 9월 13일 업데이트
Use when monitoring, tracing, or debugging agentic workflows in production. Keywords: observability, tracing, OpenTelemetry, Langfuse, latency, token cost, loop detection, telemetry.
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VoDaiLocz/kilo-kit-mcp282026년 9월 13일 업데이트
Use when building self-correcting retrieval systems for AI agents. Keywords: RAG, retrieval, Corrective RAG, Self-RAG, query decomposition, reranking, hallucination, grounding.
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VoDaiLocz/kilo-kit-mcp282026년 9월 13일 업데이트