Worked on enhancing the tool interaction layer within the 0xPlaygrounds/rig repository by introducing a standardized Tool Call Result Messaging feature for the Mistral system. This involved designing and implementing a dedicated ToolMessage type in Rust to encapsulate tool call results, which improved the structure and traceability of messages exchanged between components. The approach focused on backend development principles, emphasizing maintainability, error handling, and future extensibility. No major bugs were reported during this period, allowing concentrated effort on architectural improvements that align with business goals and enhance the reliability and debuggability of tool interactions within the existing system.