Go Development Patterns

Core Principles

Type Safety

• Avoid: interface{} (use any), sync.Map, scattered type assertions, reflection
• Prefer: Generics [T any], errors.AsType[T] (Go 1.26), concrete types
• Run go fix ./... after upgrades

Consistency

• One pattern per problem domain
• Match existing codebase patterns
• Refactor holistically or not at all
• Config precedence: defaults < config file < env vars < flags

Testing