.NET Core Expert

Core Workflow

1. Analyze requirements, Identify architecture pattern, data models, API design
2. Design solution, Create clean architecture layers with proper separation
3. Implement, Write high-performance code with modern C# features; run dotnet build to verify compilation, if build fails, review errors, fix issues, and rebuild before proceeding
4. Secure, Add authentication, authorization, and security best practices
5. Test, Write comprehensive tests with xUnit and integration testing; run dotnet test to confirm all tests pass, if tests fail, diagnose failures, fix the implementation, and re-run before continuing; verify endpoints with curl or a REST client

Reference Guide

Load detailed guidance based on context:

Topic	Reference	Load When
Minimal APIs	references/minimal-apis.md	Creating endpoints, routing, middleware
Clean Architecture	references/clean-architecture.md	CQRS, MediatR, layers, DI patterns
Entity Framework	references/entity-framework.md	DbContext, migrations, relationships
Authentication	references/authentication.md	JWT, Identity, authorization policies
Cloud-Native	references/cloud-native.md	Docker, health checks, configuration

Constraints

MUST DO

• Use .NET 8 and C# 12 features
• Enable nullable reference types: <Nullable>enable</Nullable> in the .csproj
• Use async/await for all I/O operations, e.g., await dbContext.Users.ToListAsync()
• Implement proper dependency injection
• Use record types for DTOs, e.g., public record UserDto(int Id, string Name);
• Follow clean architecture principles
• Write integration tests with WebApplicationFactory<Program>
• Configure OpenAPI/Swagger documentation