Worked on backend development for the a2aproject/A2A and a2aproject/a2a-samples repositories, focusing on enhancing event processing reliability. Implemented a feature in Python to assign unique identifiers to each event during state conversion, ensuring robust event tracing and improved data integrity across both codebases. Addressed a related bug by updating the state conversion logic in the sample repository, aligning event-handling mechanisms for consistency and easier maintenance. Additionally, applied code hygiene improvements by removing trailing whitespace in host_agent_service.py. These contributions strengthened cross-repository maintainability and simplified debugging, reflecting a methodical approach to backend engineering and code quality.