# Summary - React Native Development Rules

Complete summary of all files created for React Native development with Claude Code.

---

## 📊 Statistics

- **Total files**: 25 markdown files
- **Total size**: ~274 KB
- **Lines of code**: ~8,000+ lines of documentation
- **Categories**: 4 (Rules, Templates, Checklists, Docs)

---

## 📁 Complete Structure

```
ReactNative/
├── README.md                              ✅ Usage guide
├── SUMMARY.md                             ✅ This file
├── CLAUDE.md.template                     ✅ Main template (12 KB)
│
├── rules/                                 ✅ 15 detailed rules
│   ├── 00-project-context.md.template    ✅ Project context template (9.2 KB)
│   ├── 01-workflow-analysis.md           ✅ Mandatory analysis (18 KB)
│   ├── 02-architecture.md                ✅ RN Architecture (32 KB)
│   ├── 03-coding-standards.md            ✅ TypeScript standards (25 KB)
│   ├── 04-solid-principles.md            ✅ SOLID principles (27 KB)
│   ├── 05-kiss-dry-yagni.md              ✅ Simplicity (25 KB)
│   ├── 06-tooling.md                     ✅ Expo/EAS tools (4.4 KB)
│   ├── 07-testing.md                     ✅ Testing (8.5 KB)
│   ├── 08-quality-tools.md               ✅ ESLint/Prettier (2.2 KB)
│   ├── 09-git-workflow.md                ✅ Git & Conventional Commits (4.5 KB)
│   ├── 10-documentation.md               ✅ Documentation (4.4 KB)
│   ├── 11-security.md                    ✅ Mobile security (16 KB)
│   ├── 12-performance.md                 ✅ Performance (15 KB)
│   ├── 13-state-management.md            ✅ State management (13 KB)
│   └── 14-navigation.md                  ✅ Expo Router (12 KB)
│
├── templates/                             ✅ 4 code templates
│   ├── screen.md                         ✅ Screen template (3.7 KB)
│   ├── component.md                      ✅ Component template (3.6 KB)
│   ├── hook.md                           ✅ Hook template (4.6 KB)
│   └── test-component.md                 ✅ Test template (6.3 KB)
│
├── checklists/                            ✅ 4 validation checklists
│   ├── pre-commit.md                     ✅ Pre-commit (2.4 KB)
│   ├── new-feature.md                    ✅ New feature (4.5 KB)
│   ├── refactoring.md                    ✅ Refactoring (5.9 KB)
│   └── security.md                       ✅ Security audit (7.0 KB)
│
└── examples/                              📁 (empty, for future examples)
```

---

## 📚 Detailed Content

### 🎯 Main Files

#### README.md (6.5 KB)
- Complete overview
- Quick start guide
- Project structure
- Usage with Claude Code
- Philosophy and workflow
- Resources

#### CLAUDE.md.template (12 KB)
- Main template for projects
- Project context
- 7 fundamental rules
- Tech stack
- Essential commands
- Architecture
- Complete documentation
- Typical workflow
- Instructions for Claude Code

---

### 📖 Rules (15 files, ~190 KB)

#### 00-project-context.md.template (9.2 KB)
Template with placeholders for:
- General information
- Expo configuration
- Detailed tech stack
- Environments
- APIs and services
- Features
- Technical constraints
- Build & deployment
- Team
- Conventions

#### 01-workflow-analysis.md (18 KB)
**Absolute rule**: Mandatory analysis before coding
- Phase 1: Understanding requirements
- Phase 2: Technical analysis
- Phase 3: Impact identification
- Phase 4: Solution design
- Phase 5: Implementation plan
- Phase 6: Pre-implementation validation
- Complete examples (feature, bug fix)

#### 02-architecture.md (32 KB)
Complete React Native architecture:
- Architectural principles (Clean Architecture)
- Feature-based organization
- Detailed folder structure
- Layer details (4 layers)
- App Router (Expo Router)
- Components (UI, Smart, Compound)
- Hooks patterns
- Multi-level state management
- Services (API, Storage)
- Navigation
- Platform-specific code
- Native modules
- Best practices (DI, Repository, Adapter)

#### 03-coding-standards.md (25 KB)
TypeScript/React Native standards:
- TypeScript strict mode configuration
- Type annotations
- Interface vs Type
- Generics and Type Guards
- Utility types
- Component standards (Functional, Structure)
- Props destructuring
- Conditional rendering
- Event handlers
- Hooks standards (naming, structure, rules)
- Dependencies arrays
- Styling standards (StyleSheet, Organization)
- Dynamic styles
- Theme integration
- Platform-specific patterns
- Imports organization
- Error handling
- Performance (memoization, FlatList)
- Naming conventions
- Comments & JSDoc

#### 04-solid-principles.md (27 KB)
SOLID adapted for React Native:
- **S**RP: Single Responsibility (User Profile examples)
- **O**CP: Open/Closed (Button variants, Storage abstraction)
- **L**SP: Liskov Substitution (Button contracts, List components)
- **I**SP: Interface Segregation (ArticleCard, Form components)
- **D**IP: Dependency Inversion (Repository pattern, DI)
- Complete examples for each principle
- Benefits and anti-patterns

#### 05-kiss-dry-yagni.md (25 KB)
Simplicity principles:
- **KISS**: Keep It Simple
  - Over-engineering vs Simple solutions
  - Simple state management
  - Simple data fetching
  - Conditional rendering
- **DRY**: Don't Repeat Yourself
  - Duplicated code → Reused code
  - Validation utils
  - Reusable hooks/components
  - Centralized styles
  - Rule of 3
- **YAGNI**: You Aren't Gonna Need It
  - Future over-engineering
  - Pagination, i18n, theme "just in case"
  - When to anticipate (security, performance)
- Balance between the 3 principles

#### 06-tooling.md (4.4 KB)
Expo/EAS tools:
- Expo CLI (installation, commands)
- EAS (Build, Update, Submit)
- eas.json configuration
- Metro bundler configuration
- Development tools (Debugger, Flipper)
- VS Code extensions
- Package management (npm vs yarn)

#### 07-testing.md (8.5 KB)
Complete testing:
- Test types (Unit, Component, Integration, E2E)
- Jest configuration
- Unit tests (utils, services)
- Component tests (Testing Library)
- Testing hooks
- Testing with React Query
- E2E with Detox
- Test organization
- Coverage

#### 08-quality-tools.md (2.2 KB)
Quality tools:
- ESLint configuration
- Prettier configuration
- TypeScript strict mode
- Pre-commit hooks (Husky)
- lint-staged

#### 09-git-workflow.md (4.5 KB)
Git & Conventional Commits:
- Branching strategy
- Branch naming
- Conventional Commits (types, format)
- Complete examples
- Feature development workflow
- Hotfix process
- Pull Request template
- Best practices
- Useful Git commands

#### 10-documentation.md (4.4 KB)
Documentation standards:
- JSDoc comments
- Component documentation
- README structure
- Inline comments (when/how)
- ADR (Architecture Decision Records)
- API documentation
- Changelog

#### 11-security.md (16 KB)
Complete mobile security:
- **Secure Storage**: SecureStore, MMKV encryption
- **API Security**: Token management, Interceptors, Certificate pinning
- **Input Validation**: Zod schemas, Sanitization
- **Biometric Authentication**: Setup, Implementation
- **Code Obfuscation**: react-native-obfuscating-transformer
- **Environment Variables**: .env, EAS Secrets
- **Network Security**: HTTPS, Timeout
- **Screen Security**: Screenshot prevention
- **Deep Link Security**: Validation
- **Security Checklist** (Development, Pre-Production, Post-Production)
- **Common Vulnerabilities** (XSS, SQL Injection, MITM)

#### 12-performance.md (15 KB)
Performance optimizations:
- **Hermes Engine**: Configuration, Benefits
- **FlatList Optimization**: Props, Memoization, getItemLayout
- **Image Optimization**: expo-image, Resizing, Lazy loading
- **Memoization**: React.memo, useMemo, useCallback
- **Animations Performance**: Native driver, Reanimated, LayoutAnimation
- **Bundle Size**: Analyze, Code splitting, Remove unused
- **Network Performance**: Batching, Caching, Pagination
- **JavaScript Performance**: Avoid inline, Debounce
- **Memory Management**: Cleanup, Cancel async
- **Profiling Tools**: React DevTools, Performance Monitor
- **Performance Checklist**
- **Metrics** (Target: 60 FPS, < 3s startup, etc.)

#### 13-state-management.md (13 KB)
Multi-level state management:
- **React Query**: Setup, Queries, Mutations, Optimistic updates, Infinite queries
- **Zustand**: Basic store, Persistent (MMKV), Selectors, Slices
- **MMKV**: Fast storage, Encrypted storage
- **Decision Tree**: Which tool for which need
- **Best Practices**: Don't mix concerns, Use selectors, Normalize data
- **Offline Support**: useOfflineQuery
- **Checklist**

#### 14-navigation.md (12 KB)
Expo Router (Navigation):
- Installation & Setup
- **File-based Routing**: Basic structure, Root layout
- **Route Groups**: Tabs, Auth groups
- **Dynamic Routes**: Single param, Multiple params, Catch-all
- **Navigation API**: router.push/replace/back, useRouter, useNavigation
- **Deep Linking**: Configuration, Handling
- **Modal Screens**: Configuration
- **Protected Routes**: Authentication check
- **Type-safe Navigation**: TypeScript types
- **Navigation Patterns**: Tabs+Stack, Drawer, Onboarding
- **Screen Options**: Per-screen configuration
- **Best Practices**: Organize by feature, Use route groups, Type params

---

### 🎨 Templates (4 files, ~18 KB)

#### screen.md (3.7 KB)
Complete screen template:
- Complete structure (imports, state, hooks, handlers, render)
- Separate styles
- Tests (rendering, loading, error states)
- Screen options for Expo Router

#### component.md (3.6 KB)
Reusable component template:
- Structure (props, state, handlers, render)
- Separate types (interfaces)
- Styles (StyleSheet)
- Complete tests
- Index export

#### hook.md (4.6 KB)
Custom hook template:
- Structure (state, refs, effects, callbacks, return)
- Example with React Query (CRUD operations)
- Tests (initialization, fetching, errors, refetch)

#### test-component.md (6.3 KB)
Complete test template:
- Test structure (describe, beforeEach)
- Rendering tests
- Interactions tests
- States tests (loading, error, empty)
- Async behavior tests
- Accessibility tests
- Styling tests
- Edge cases tests
- Snapshot tests
- Integration tests

---

### ✅ Checklists (4 files, ~20 KB)

#### pre-commit.md (2.4 KB)
Pre-commit validation:
- Code Quality (lint, format, type-check)
- Tests (unit, component, coverage)
- Code Standards (naming, imports, DRY, JSDoc)
- Performance (memoization, images, FlatList)
- Security (secrets, validation, storage)
- Architecture (SRP, separation, DI)
- Documentation (README, JSDoc, changelog)
- Git (message, atomic, branch)
- Final check

#### new-feature.md (4.5 KB)
Complete feature workflow (10 phases):
1. **Analysis** (mandatory): Requirements, user stories, use cases
2. **Design**: Architecture, data modeling, technical decisions
3. **Setup**: Branch, ticket, dependencies
4. **Implementation** (bottom-up): Data → Logic → UI → Screens → Integration
5. **Quality Assurance**: Code quality, testing, performance, security, accessibility
6. **Documentation**: JSDoc, comments, README, ADR
7. **Manual Testing**: Functional, platforms, UX
8. **Code Review**: PR, reviewers, feedback
9. **Merge & Deploy**: Staging, production, monitoring
10. **Cleanup**: Branch delete, ticket close
+ **Post-Launch**: Metrics, feedback, retrospective

#### refactoring.md (5.9 KB)
Safe refactoring (5 phases):
1. **Preparation**: Understanding, documentation, tests
2. **Planning**: Strategy, risk assessment
3. **Refactoring**: Incremental changes, code quality, tests
4. **Validation**: Automated testing, manual testing, code review
5. **Deployment**: Pre-deploy, deploy, post-deploy
+ **Refactoring Patterns**: Extract method, Extract component, Introduce hook
+ **Common Pitfalls**: Avoid/Do lists

#### security.md (7.0 KB)
Complete security audit (16 sections):
1. Sensitive Data Storage
2. API Security
3. Input Validation
4. Authentication & Authorization
5. Code Security
6. Platform Security (iOS/Android)
7. Network Security
8. Offline Security
9. Error Handling
10. Third-Party Security
11. WebView Security
12. Biometric Security
13. Code Obfuscation
14. Compliance (GDPR, CCPA, HIPAA)
15. Monitoring & Response
16. Testing
+ **Security Score**: Critical/High/Medium/Low

---

## 🎯 Fundamental Rules (Summary)

### RULE #1: MANDATORY ANALYSIS
Before any code, complete analysis (6 phases).
**Ratio**: 1h analysis = 1h code minimum.

### RULE #2: ARCHITECTURE FIRST
Follow feature-based + clean architecture.
**Structure**: Data → Logic → UI → Screens.

### RULE #3: CODE STANDARDS
TypeScript strict, ESLint 0 errors, Prettier auto-format.
**Quality**: JSDoc, named exports, organized imports.

### RULE #4: SOLID PRINCIPLES
Apply SOLID + KISS + DRY + YAGNI.
**Simplicity**: Simple code > Clever code.

### RULE #5: MANDATORY TESTS
Coverage > 80%, all test types.
**Testing**: Unit + Component + Integration + E2E.

### RULE #6: SECURITY
Security by design, SecureStore, validation.
**Protection**: Secure tokens, HTTPS, audit dependencies.

### RULE #7: PERFORMANCE
60 FPS target, Hermes, optimizations.
**Speed**: Memoization, FlatList, images, animations.

---

## 📦 Recommended Tech Stack

### Core
- **React Native** (latest)
- **Expo SDK** (latest)
- **TypeScript** (strict mode)
- **Node.js** (18+)

### Navigation
- **Expo Router** (file-based routing)

### State Management
- **React Query** (server state, cache)
- **Zustand** (global client state)
- **MMKV** (fast persistence)

### UI & Styling
- **StyleSheet** (native styling)
- **Theme** (centralized)
- **Reanimated** (animations)
- **Gesture Handler** (gestures)

### Forms & Validation
- **React Hook Form** (forms management)
- **Zod** (validation schemas)

### Testing
- **Jest** (unit tests)
- **React Native Testing Library** (component tests)
- **Detox** (E2E tests)

### Quality Tools
- **ESLint** (linting)
- **Prettier** (formatting)
- **Husky** (git hooks)
- **TypeScript** (type checking)

### Build & Deploy
- **EAS CLI** (Expo Application Services)
- **Metro** (bundler)

---

## 🚀 Usage

### For New Project

```bash
# 1. Copy template
cp CLAUDE.md.template /my-project/.claude/CLAUDE.md

# 2. Customize
# Replace {{PROJECT_NAME}}, {{TECH_STACK}}, etc.

# 3. Copy rules (optional)
cp -r rules/ /my-project/.claude/rules/
cp -r templates/ /my-project/.claude/templates/
cp -r checklists/ /my-project/.claude/checklists/
```

### For Existing Project

```bash
# 1. Copy CLAUDE.md
cp CLAUDE.md.template /existing-project/.claude/CLAUDE.md

# 2. Adapt progressively
# Start with priority rules
```

---

## 💡 Highlights

### Complete Documentation
- **~8,000+ lines** of detailed documentation
- **50+ examples** of concrete code
- **100+ code snippets** React Native/TypeScript
- French for explanations, English for code

### Complete Coverage
- **Architecture**: Clean Architecture, Feature-based
- **Code Standards**: TypeScript strict, ESLint, Prettier
- **Patterns**: SOLID, KISS, DRY, YAGNI
- **Testing**: Unit, Component, Integration, E2E
- **Security**: SecureStore, validation, HTTPS, audit
- **Performance**: Hermes, memoization, FlatList, animations
- **State**: React Query, Zustand, MMKV
- **Navigation**: Expo Router, deep links, types

### Practical
- **4 Templates** ready-to-use code
- **4 Checklists** for validation
- **15 Rules** detailed
- **Workflow** complete (analysis → code → deploy)

---

## 📈 Quality Metrics Targets

- **Code Coverage**: > 80%
- **ESLint**: 0 errors, 0 warnings
- **TypeScript**: 0 errors (strict mode)
- **npm audit**: 0 vulnerabilities
- **Bundle Size**: < 10MB
- **Startup Time**: < 3s
- **FPS**: 60 constant
- **Memory**: < 200MB

---

## 🎓 Philosophy

### Think First, Code Later
Mandatory analysis before any code.

### Architecture Matters
Clear structure = Maintainable code.

### Quality Over Speed
Quality code saves time.

### Security by Design
Security from the start, not after.

### Performance First
60 FPS target, native optimizations.

---

## ✅ Completeness

### Rules: 15/15 ✅
- All essential rules covered
- From analysis to deployment
- Concrete examples everywhere

### Templates: 4/4 ✅
- Screen, Component, Hook, Test
- Ready to copy-paste
- With types, styles, tests

### Checklists: 4/4 ✅
- Pre-commit, Feature, Refactoring, Security
- Complete validation
- Clear process

### Documentation: 100% ✅
- Complete README
- CLAUDE.md template
- All files documented

---

## 🔮 Future (Potential)

### Possible Extensions
- [ ] Complete code examples (folder examples/)
- [ ] Video tutorials
- [ ] Interactive checklists
- [ ] VS Code snippets
- [ ] CLI tool for setup
- [ ] More templates (service, store, etc.)

---

## 🏆 Conclusion

**Complete and professional structure** for React Native development with Claude Code:

✅ **25 files** of documentation
✅ **~8,000+ lines** of detailed content
✅ **15 rules** essential
✅ **4 templates** ready-to-use
✅ **4 checklists** for validation
✅ **100+ examples** of code
✅ **Complete coverage**: Architecture → Security → Performance
✅ **Ready-to-use** for React Native/Expo projects

---

**Version**: 1.0.0
**Created on**: 2025-12-03
**Author**: TheBeardedCTO

**Remember**: These rules are guides to produce quality code. Adapt them to your specific context.
