error-handling-patterns

Error handling patterns include circuit breakers to prevent cascading failures, error aggregation to collect multiple failures, and graceful degradation to maintain partial functionality during external service outages.

Graceful degradation handles external service errors by maintaining partial application functionality and failing safely, ensuring the system remains responsive instead of crashing entirely during outages.

Use Result types in Rust for explicit, compiler-enforced error handling, whereas exceptions in Python or TypeScript offer a centralized approach for unexpected runtime failures.

Create a custom exception hierarchy in Python by subclassing base exceptions to categorize specific failure modes, enabling precise error catching, targeted retry mechanisms, and appropriate logging.

Yes, this Skill covers Option and Maybe types to explicitly represent optional values, forcing developers to handle absence safely and preventing null reference errors across supported languages.