hexagonal-review

Hexagonal architecture review assesses whether ports are abstract interfaces, adapters are swappable implementations, and core domain logic remains isolated from frameworks and I/O code. Evaluate layer boundaries—Domain/Core, Ports, Adapters, Infrastructure—to ensure separation of concerns and testability across your codebase.

Ports are abstract interfaces that define how external systems interact with core domain logic. Adapters implement those interfaces to connect specific frameworks, databases, or APIs. Together they decouple business rules from external dependencies, allowing adapters to be swapped without changing core logic.

Violations occur when framework code or I/O operations leak into core domain logic, ports lack abstraction, or adapters cannot be replaced independently. Review checklist artifacts flag these issues: framework dependencies in domain code, concrete implementations in port interfaces, or adapters tightly coupled to infrastructure details.

Yes. Integrate architecture compliance checks into code generation pipelines and quality gates to assess port abstraction, adapter isolation, and layer separation continuously. This ensures new features maintain core domain decoupling and produces reference structures and checklists for ongoing validation.

Isolating core domain from frameworks enables independent testing of business logic, simplifies maintenance, and allows framework or database changes without rewriting core rules. Hexagonal architecture review verifies this isolation, ensuring adapters handle all external system concerns while domain code focuses purely on business logic.