dotnet-minimal-apis Minimal APIs are Microsoft's recommended approach for new ASP.NET Core HTTP API projects. They provide a lightweight, lambda-based programming model with first-class OpenAPI support, endpoint filters for cross-cutting concerns, and route groups for organization at scale. Out of scope: API versioning strategies -- see [skill:dotnet-api-versioning]. Input validation frameworks and patterns -- see [skill:dotnet-input-validation]. Architectural patterns (vertical slices, CQRS, clean architecture) -- see [skill:dotnet-architecture-patterns]. Authentication and authorization imp…