Use this skill only for projects that intentionally follow Clean Architecture. Keep policy inward and mechanisms outward.
Layer Rule
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Domain: entities, value objects, aggregates, domain services, domain events, and invariants.
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Use cases: application-specific orchestration, transaction boundaries, ports, authorization decisions that are application policy, and repository interface usage.
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Interface adapters: controllers, presenters, gateways, repository implementations, RPC adapters, DTO mapping, and persistence mapping.
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Infrastructure: cross-cutting mechanisms such as logging, configuration, metrics, DI wiring, clocks, IDs, and concrete driver setup.
Workflow
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Confirm the project actually uses Clean Architecture.
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Map the touched code to the four layers.
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Check dependency direction: outer layers may depend inward; inward layers must not know outer mechanisms.
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Move persistence, RPC, UI, and framework details out of domain and use-case code.
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Report the minimal relocation or interface extraction needed.
Reference
Read references/layer-responsibilities.md when placement is ambiguous.
Detailed Reference
For non-trivial implementation, review, or refactoring work, read references/details.md before giving final guidance. It contains the detailed rules, examples, smells, and migration notes that do not belong in the short invocation body.
Output
Provide a layer-by-layer finding list, dependency violations, and concrete file-placement recommendations.