exception-hierarchies

What problem does it solve?

This skill guides you to design robust exception hierarchies so callers catch errors at the right abstraction level and avoid over-broad catches.

Core Features & Use Cases

• Define a base ApplicationError and Category errors (DomainError, InfrastructureError, ExternalError).
• Create specific errors such as ValidationError, NotFoundError, and DatabaseError.
• Wrap third-party errors at boundaries to protect internal details.
• Use case: Refactor a service to throw domain-specific errors instead of generic failures.

Quick Start

• Draft a base ApplicationError class.
• Create at least one DomainError, one InfrastructureError, and one ExternalError subclass.
• Implement an adapter that wraps library errors at the boundary and translates them into domain errors.