Use when a ticket adds or changes Go code and it must follow the repo's Go conventions — idiomatic Go (Effective Go), explicit error handling and wrapping, small interfaces, correct pointer-receiver rules, goroutines with an owner and an exit, and table-driven tests run with the race detector; go vet / staticcheck / golangci-lint clean. Invoke for "add this in Go", "fix the go vet/build issues", "add the handler/service", "fix the goroutine leak", or as the language pack for any Go change or Go review.
