Agent Skills: software-design

Diagnose architecture friction and design deeper modules/APIs, informed by domain language in CONTEXT.md and decisions in docs/adr/. Use when the user wants refactoring candidates, module/interface design, architecture review, testability improvements, or software-design reasoning about shallow modules, seams, information leakage, locality, and leverage. For implementing behavior test-first, use tdd; for turning conventions/design rules into deterministic linters/CI checks, use feedback-loop.