maestro-dev

Adding a new command to a CLI using hexagonal architecture requires defining ports, writing use-cases, and implementing adapters. This enforces strict layering, isolating core logic from external interfaces, and ensures testable code structure.

Structuring TypeScript CLI features with ports and adapters involves separating core logic from external concerns. You define interfaces for dependencies, implement use-cases for business logic, and create adapters for specific technologies, ensuring a maintainable and testable codebase.

Implementing an MCP server extension in a TypeScript CLI involves extending the existing command structure and defining new use-cases. You must follow project-specific code conventions, ensuring the extension integrates cleanly with the established hexagonal architecture and state machine patterns.

Yes, this approach fully supports modifying existing ports and writing new use-cases. Developers can adjust interfaces and implement corresponding business logic while adhering to strict error handling, state machine patterns, and established code conventions.

Your CLI feature breaks when bypassing defined layers because hexagonal architecture enforces strict dependency rules. Skipping ports or directly accessing adapters violates the state machine patterns and error handling conventions, causing runtime failures and testing isolation issues.