Go Expert

This is a comprehensive Go skill that covers the modern language features you actually need: generics with proper type constraints, the enhanced for loop from 1.22, and structured logging with slog. The concurrency patterns are solid, showing worker pools, context cancellation, and the full sync primitive toolkit. You get a complete HTTP server implementation with middleware, proper timeouts, and JSON handling. The examples are production-grade, not toy code. If you're building backend services or need to work with goroutines beyond basic tutorials, this gives you the patterns and idioms that matter. It assumes you know programming but want to write Go the way experienced Go developers actually write it.