Implement error handling that gracefully degrades when operations fail, uses consistent reporting patterns, and considers security implications. Always wrap potentially failing operations in try-catch blocks, provide meaningful fallback behavior, and follow established error reporting conventions. Key principles: - Use environment-aware error information disclosure (preserve debugging details in development, sanitize in production) - Follow consistent error reporting patterns across the codebase - Implement defensive programming against unexpected error types - Provide graceful degradation when non-critical operations fail Example implementation: ```ts try { sessionStorage.setItem(storageKey, JSON.stringify(data)); } catch (error) { warning( false, `Failed to save data in sessionStorage, feature will not work properly. ${error}` ); // Continue execution - don't let storage failure break the app } // Environment-aware error disclosure error.stack = process.env.NODE_ENV === "development" ? val.stack : ""; // Proper error propagation with meaningful responses if (res.status === 404) { throw new ErrorResponseImpl(404, "Not Found", true); } ``` This approach ensures applications remain functional even when individual operations fail, while maintaining appropriate security boundaries and consistent user experience.