golang-error-handling

What problem does it solve?

This Skill ensures your Go applications handle errors robustly, preventing critical issues like lost error chains, context leaks, and incorrect error comparisons, which can lead to production bugs and difficult debugging.

Core Features & Use Cases

• Error Wrapping: Enforces the use of %w for proper error chaining, enabling errors.Is and errors.As.
• Context Propagation: Ensures context.Context is passed correctly through the call stack, allowing for graceful cancellation and timeouts.
• Nil Interface Handling: Prevents bugs caused by incorrectly checking interface nil values.
• Use Case: Reviewing a complex microservice to ensure that all outgoing API calls correctly propagate the request context, so that if the initial client request is cancelled, all downstream operations are also terminated promptly, preventing resource leaks.

Quick Start

Review the error handling in the provided Go code for potential issues.