Zig Best Practices

Follows type-first, functional, and error handling patterns from CLAUDE.md. This skill covers Zig-specific idioms only.

Type System Patterns

Tagged unions for mutually exclusive states — prevents invalid combinations that a struct with multiple nullable fields would allow:

const RequestState = union(enum) {
    idle,
    loading,
    success: []const u8,
    failure: anyerror,
};