# Development Process

## Core Development Flow

1. **Problem Definition**
   - Discuss and agree on problem statement
   - Capture value proposition and requirements
   - Document constraints and assumptions

2. **Design Phase**
   - Create design document using template
   - Review and iterate on design
   - Get explicit approval before implementation

3. **Implementation**
   - Create feature branch
   - Follow TDD workflow (see below)
   - Submit PR for review

## Test-Driven Development Workflow

1. **Feature Agreement**
   - Discuss feature requirements
   - Review relevant documentation
   - Get explicit approval to proceed

2. **Test Development**
   ```typescript
   describe('NewFeature', () => {
     it('should meet core requirement 1', () => {
       // Test core functionality
     });
     
     it('should handle edge case 1', () => {
       // Test edge cases
     });
   });
   ```

3. **Implementation**
   - Write minimal implementation
   - Run tests and debug
   - Iterate until tests pass

4. **Quality Verification**
   - Run full test suite
   - Check types and linting
   - Verify performance impact

## Continuous Verification

### Continuous Testing
```bash
# Watch mode
npm run test:watch

# Full suite
npm run test
```

### Error Resolution
Follow the systematic error resolution protocol:
1. Analyze errors (see error-resolution.md)
2. Plan fixes systematically
3. Implement and verify
4. Document changes

### Performance Verification
```bash
# Run performance checks
npm run perf

# Monitor in development
npm run perf:watch
```

## Appendices

### A. Code Quality Checklist
- [ ] TypeScript types complete
- [ ] JSDoc documentation
- [ ] Logging instrumentation
- [ ] Tests covering core paths
- [ ] Performance monitoring
- [ ] Error handling

### B. React Component Checklist
- [ ] Hook dependencies verified
- [ ] Cleanup functions added
- [ ] State updates safe
- [ ] Props documented
- [ ] Error boundaries
- [ ] Memory leaks checked

### C. Error Resolution Protocol
See [Error Resolution Guide](./error-resolution.md) 