Implement Clean, Hexagonal (Ports & Adapters), and Domain-Driven architecture patterns.
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# Architecture Patterns
Master proven backend architecture patterns — Clean Architecture, Hexagonal (Ports & Adapters), and Domain-Driven Design — to build maintainable, testable, scalable systems.
**Given:** a service boundary or module to architect.
**Produces:** layered structure with clear dependency rules, interface definitions, and test boundaries.
## When to Use This Skill
- Designing new backend services or microservices from scratch
- Refactoring monolithic applications where business logic is entangled with ORM models or HTTP concerns
- Establishing bounded contexts before splitting a system into services
- Debugging dependency cycles where infrastructure code bleeds into the domain layer
- Creating testable codebases where use-case tests do not require a running database
- Implementing DDD tactical patterns (aggregates, value objects, domain events)
## Choosing a Pattern
| If you are… | Reach for | Read |
|---|---|---|
| Laying out a fresh service into layers with an inward dependency rule | Clean Architecture | `references/clean-architecture.md` |
…
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Source
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higoralves/orc · 7 stars · license MIT · pushed 2026-10-24 · branch main
API
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