Hexagonal TypeScript — Anti-Patterns

This skill extends hexagonal-typescript with common violations and how to fix them. Load hexagonal-typescript first.

When to Activate

• Reviewing code where domain classes import typeorm, @nestjs/common, or other framework packages
• Use case constructors receive concrete adapter classes instead of port interfaces
• HTTP handlers call repositories directly, skipping the use case layer
• Domain models contain Zod schemas or other validation library dependencies
• Auditing a codebase for dependency direction violations

Anti-Patterns

Domain Model Importing Framework Dependencies

Wrong: