aidd-error-causes

Structured error handling in JavaScript replaces raw `new Error()` with named, routable errors using `createError`. This provides consistent error metadata including name, code, message, and cause, enabling automatic error routing for APIs.

Error handling across memory realms fails with `instanceof` because object prototypes do not cross realm boundaries. Using structured, named errors bypasses this limitation by routing errors via name rather than prototype chain checks.

Yes, the `error-causes` library must be available as a dependency to use this structured error handling Skill. It provides the underlying `createError` functionality needed to replace raw errors.

The best way to route errors automatically is by replacing `new Error()` with structured, named errors. This allows your application to identify and route errors by their specific name instead of parsing error message strings.

Yes, structured error handling is ideal for API development requiring explicit error information. It ensures consistent metadata by providing a standard structure containing name, code, message, and cause for every error thrown.