During May 2025, Dreisprung focused on backend development for the FoundationAgents/OpenManus repository, addressing a recurring issue with tool invocation stability. He implemented a Python-based sanitization layer that validates and formats tool names before they are sent to the OpenAI API, ensuring compliance with required naming patterns. This data sanitization approach prevents runtime errors caused by invalid characters, thereby improving automation reliability and reducing workflow interruptions. By integrating validation early in the invocation process, Dreisprung enhanced both maintainability and error prevention. His work leveraged skills in API integration and backend development, delivering a targeted bug fix that improved overall system robustness.