error-handling

What problem does it solve?

This Skill addresses the challenge of managing errors and exceptions effectively across different layers of an application, ensuring resilience and maintainability.

Core Features & Use Cases

• Layered Exception Handling: Defines distinct responsibilities for handling errors in infrastructure, service, and API/CLI layers.
• Exception Mapping: Translates low-level exceptions into domain-specific errors at layer boundaries.
• Retry Mechanisms: Implements safe retry logic with exponential backoff for transient failures.
• Logging Best Practices: Guides on correct exception logging to preserve tracebacks.
• Graceful Degradation: Provides strategies for maintaining functionality when services fail.
• Use Case: When building a web service, use this Skill to ensure that database connection errors are caught by the repository layer, translated into a ServiceUnavailable domain error, and then mapped to a 503 HTTP response by the API layer, all while logging the original error with its traceback.

Quick Start

Use the error-handling skill to implement a retry mechanism with exponential backoff for a function that calls an external API.