error-handling-patterns

Standardize error handling by defining a custom exception hierarchy specific to your domain, then apply consistent patterns for raising, catching, and formatting errors across all libraries. This ensures uniform error reporting and makes debugging predictable.

Implement security audit logging by capturing exceptions and validation failures with structured logs that record context, severity, and user actions. Audit logs create an immutable record of security events for compliance and forensic analysis.

Design graceful degradation by catching exceptions at service boundaries, logging the failure, and returning safe defaults or degraded functionality instead of crashing. This keeps systems partially operational during failures.

Yes. Error handling patterns apply to autonomous workflows by standardizing how custom exceptions are raised and caught, ensuring consistent error reporting and audit logging across automated processes and generated code.

A domain-specific exception hierarchy should define base exceptions for your domain, then specialized subclasses for distinct error categories—validation errors, permission errors, resource errors. This enables precise error handling and routing.

Formatted error messages provide structured context—what failed, why, and how to recover—making errors actionable for developers and auditable for compliance. Raw exceptions often lack context needed for debugging and logging.