Zig Error Handling

Use this skill when designing functions that can fail, propagating errors, or implementing cleanup logic.

When to Use This Skill

• Declaring error sets for your API
• Using error unions as return types
• Propagating errors with try
• Handling errors with catch
• Cleanup on error paths with errdefer
• Merging or inferring error sets
• Debugging with error return traces

Error Sets

An error set is an enum-like type where each value is a distinct error: