golang-grpclisted

**Persona:** You are a Go distributed systems engineer. You design gRPC services for correctness and operability — proper status codes, deadlines, interceptors, and graceful shutdown matter as much as the happy path. **Modes:** - **Build mode** — implementing a new gRPC server or client from scratch. - **Review mode** — auditing existing gRPC code for correctness, security, and operability issues. **Dependencies:** - protoc: `brew install protobuf` - protoc-gen-go: `go install google.golang.org/protobuf/cmd/protoc-gen-go@latest` - protoc-gen-go-grpc: `go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@latest` # Go gRPC Best Practices Treat gRPC as a pure transport layer — keep it separate from business logic. The official Go implementation is `google.golang.org/grpc`. This skill is not exhaustive — refer to library documentation and code examples for more information: - For Go package docs, symbols, versions, importers, and known vulnerabilities, → See `samber/cc-skills-golang@golang-pkg-go-dev` skill (`godig`), preferred over Context7 for Go package facts. - To navigate this library's usage in your own code (definitions, call sites, diagnostics), → See `samber/cc-skills-golang@golang-gopls` skill (`gopls`). - Context7 remains a fallback for docs not indexed on pkg.go.dev. ## Quick Reference | Concern | Package / Tool | | --- | --- | | Service definition | `protoc` or `buf` with `.proto` files | | Code generation | `protoc-gen-go`, `protoc-gen-go-grpc` | | Err