software-architecture-skills

Authoritative architecture guidance for Domain-Driven Design, Layered Architecture, Onion Architecture, Hexagonal Architecture / Ports and Adapters, and CQRS. Use when Codex is asked to design, review, refactor, document, or implement business-domain systems, especially backend services in Java, Kotlin, C#, .NET, Go, or Python, using DDD concepts, jMolecules-style architectural annotations, package/project boundaries, repositories, aggregates, application services, ports/adapters, layered/onion/hexagonal structures, CQRS, or architecture tests. Also use for Dart/Flutter, Swift/iOS, or other client applications only when they contain substantial offline domain logic, sync workflows, complex business rules, or local persistence boundaries.