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Breaks down how the skill works and what it produces, so you can quickly judge whether it fits your scenario and value.
When implementing error handling in new features, designing error-resilient APIs, debugging production issues, or improving application reliability (including retry/circuit breaker, async/concurrent errors).
references/details.md for deep patterns and worked examplesDevelopers build resilient apps with typed, contextual errors, better messages, and fewer swallowed exceptions, improving debugging and reliability.
Use Cases
A backend engineer is building a new REST API and needs consistent error responses. They use this skill to apply Result types for validation failures and exceptions for unexpected errors, with wrapped messages and proper logging. This reduces client-side confusion and speeds up incident diagnosis, improving overall API reliability.
A developer faces frequent silent failures in production batch jobs. Using this skill, they learn to avoid empty catch blocks, preserve context with stack traces, and clean up resources via context managers. The batch system becomes observable and fault-tolerant, reducing missed errors and manual recovery effort.
Skill Relationships
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Skill File