This is a solid gRPC implementation guide covering all four communication patterns: unary, server streaming, client streaming, and bidirectional streaming. You get working examples in both Python and Go with proper error handling, interceptors, and timeout configuration. The Protocol Buffer definitions show good practices like using enums, timestamps, and structured request/response messages. Use this when you're building microservices that need efficient RPC communication or when REST feels too heavyweight for service-to-service calls. The streaming examples are especially helpful since that's where gRPC really shines over HTTP/JSON APIs.
npx skills add https://github.com/personamanagmentlayer/pcl --skill grpc-expert