Worked on the 0xPlaygrounds/rig repository to enhance observability by implementing tracing propagation for ToolServer tool calls. This feature enabled end-to-end traceability across distributed backend interactions, laying the groundwork for improved debugging and monitoring. The approach involved propagating the current tracing span through asynchronous Rust code, ensuring trace continuity between services. No major bug fixes were addressed during this period, with the primary focus on code instrumentation and integration with ToolServer communications. The work demonstrated proficiency in Rust, asynchronous programming, and distributed tracing concepts, resulting in a more transparent and debuggable backend system for future development and maintenance.