lazyinfra

Idiomatic Golang design patterns: functional options, API constructors, struct and interface guidelines, error handling flow, resource lifecycle, performance optimizations, and testability. Apply when refactoring, writing new APIs, designing packages, or deciding on structural patterns.

Production-ready testing practices in Go: table-driven tests, named subtests, test isolation, mock generation/design, integration tests isolation using build tags, and avoiding flakiness. Apply when writing, reviewing, or debugging Go tests.