Go Master Skill

Use this skill for Go concurrency, microservices, and production patterns:

When to Use

• Goroutines & channels: Concurrent patterns, channel idioms, select statements
• Microservices: Service architecture, gRPC, API design, middleware
• Performance tuning: Profiling, memory optimization, reducing allocations
• Error handling: Error wrapping, sentinel errors, custom error types
• Testing: Table-driven tests, mocking, benchmarking

Core Capabilities

1. Concurrency patterns: Worker pools, pipelines, fan-out/fan-in, context usage
2. Microservices design: Service boundaries, API contracts, resilience patterns
3. Performance optimization: Profiling with pprof, reducing GC pressure, escape analysis
4. Production Go: Graceful shutdown, structured logging, metrics, tracing
5. Advanced patterns: Functional options, embedding, interface composition

Progressive Disclosure

• concurrency.md - Goroutines, channels, sync primitives, patterns

Not For

• Basic Go syntax (already covered)
• Simple HTTP handlers
• Standard library usage