During April 2025, Gujin Mzj focused on stabilizing the FoundationAgents/OpenManus repository by addressing a critical bug in the Tool Call Agent. He identified and removed a duplicate observation formatting block, ensuring that outputs were formatted only once and remained consistent across tool interactions. This Python development effort, centered on code refactoring, improved the reliability of automated workflows and reduced the risk of downstream errors in observation pipelines. By consolidating output handling and eliminating redundant logic, Gujin enhanced both the maintainability and readability of the codebase, demonstrating a methodical approach to improving system robustness within a short project period.