Error Handling Patterns

Apply consistent patterns for throwing, catching, logging, and surfacing errors so failures are predictable and debuggable without leaking internals.

When to Activate

• Implementing or refactoring error handling in an API or app
• User asks for "error handling", "how to handle errors", or "consistent errors"
• Reviewing code for proper failure handling
• Defining or documenting error contract for a service or API

Core principles