dotnet-service-communication Higher-level routing skill for choosing the right service communication protocol. Provides a decision matrix mapping requirements (latency, direction, client type, payload format, browser support) to the five primary .NET communication protocols: gRPC, SignalR, SSE, JSON-RPC 2.0, and REST. Routes to specialized skills for implementation depth. Out of scope: HTTP client factory patterns and resilience pipelines -- see [skill:dotnet-http-client] and [skill:dotnet-resilience]. Native AOT architecture and trimming strategies -- see [skill:dotnet-native-aot] for AOT co…