.NET Best Practices

Comprehensive development guide for modern .NET applications with C# 12+. Contains 100+ rules across 11 categories, prioritized by impact to guide code generation, refactoring, and reviews.

When to Apply

Reference these guidelines when:

• Writing new C# code or refactoring existing code
• Designing APIs, services, or domain models
• Implementing data access layers or async operations
• Reviewing code for performance, correctness, or maintainability
• Setting up dependency injection, configuration, or logging
• Writing tests (unit, integration, snapshot)
• Building distributed systems or microservices

Rule Categories by Priority