During April 2026, Xiaohaoxing focused on stabilizing AST processing within the GitNexus repository, addressing challenges related to large and deeply nested codebases. He replaced the recursive depth-first search with an iterative approach in TypeScript, preventing stack overflows when traversing complex or auto-generated abstract syntax trees. This change improved the reliability of function and declaration node searches, directly enhancing the robustness of code analysis and embedding workflows. By optimizing algorithms and refining front end development practices, Xiaohaoxing’s work reduced crash risks and enabled safer handling of intricate code structures, demonstrating thoughtful engineering depth in maintaining and scaling critical project infrastructure.