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skills/dotnet-backend-patterns/SKILL.md

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+---
+name: dotnet-backend-patterns
+description: Master C#/.NET backend development patterns for building robust APIs, MCP servers, and enterprise applications. Covers async/await, dependency injection, Entity Framework Core, Dapper, configuration, caching, and testing with xUnit. Use when developing .NET backends, reviewing C# code, or designing API architectures.
+---
+
+# .NET Backend Development Patterns
+
+Master C#/.NET patterns for building production-grade APIs, MCP servers, and enterprise backends with modern best practices (2024/2025).
+
+## Use this skill when
+
+- Developing new .NET Web APIs or MCP servers
+- Reviewing C# code for quality and performance
+- Designing service architectures with dependency injection
+- Implementing caching strategies with Redis
+- Writing unit and integration tests
+- Optimizing database access with EF Core or Dapper
+- Configuring applications with IOptions pattern
+- Handling errors and implementing resilience patterns
+
+## Do not use this skill when
+
+- The project is not using .NET or C#
+- You only need frontend or client guidance
+- The task is unrelated to backend architecture
+
+## Instructions
+
+- Define architecture boundaries, modules, and layering.
+- Apply DI, async patterns, and resilience strategies.
+- Validate data access performance and caching.
+- Add tests and observability for critical flows.
+- If detailed patterns are required, open `resources/implementation-playbook.md`.
+
+## Resources
+
+- `resources/implementation-playbook.md` for detailed .NET patterns and examples.