global-error-handling

Implement robust error handling with user-friendly messages, specific exception types, fail-fast validation, centralized error boundaries, and graceful degradation. Use this skill when implementing try-catch blocks, throwing or catching exceptions, creating custom error classes or types, implementing error boundaries or middleware, validating input and checking preconditions, implementing retry logic with exponential backoff, handling external service failures, cleaning up resources in finally blocks, creating user-facing error messages, implementing centralized error handling at API boundaries, or designing systems for graceful degradation. Use across all programming languages when implementing error handling logic in any code file.