global-error-handling

Implement robust error handling with user-friendly messages, fail-fast validation, specific exception types, centralized error boundaries, graceful degradation, retry strategies, and proper resource cleanup. Use this skill when writing try-catch blocks or exception handling code in any programming language (JavaScript/TypeScript, Python, Java, Go, Rust), implementing error boundaries in React (ErrorBoundary components) or similar error handling patterns in other frameworks (Vue error handlers, Angular ErrorHandler), handling API errors and HTTP error responses in fetch calls, Axios requests, or tRPC procedures, validating user input and function preconditions at the start of functions, creating custom error classes or exception types for specific failure scenarios (ValidationError, NotFoundError, UnauthorizedError, PaymentError), implementing retry logic with exponential backoff for external service calls, network requests, or database queries, ensuring proper resource cleanup in finally blocks or using langu

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