Worked on enhancing the Zig repository by improving error handling within the SelectiveWalker iterator, focusing on increasing the reliability of filesystem operations. Addressed a core stability issue by introducing a dedicated error set, allowing errors from both iterator usage and memory allocation to be clearly distinguished and propagated. This approach reduced ambiguous failures and improved the predictability of error paths in system programming contexts. Leveraged Zig’s language features, including error sets and iterator design, to ensure robust memory management and runtime stability. The contribution strengthened the core library’s error visibility, supporting more maintainable and durable error handling patterns in Zig.