During September 2025, Dvilkola focused on improving the correctness and maintainability of the a2aproject/a2a-samples repository. He addressed a protocol compliance issue by updating the agent card file path in both Java backend classes and Markdown documentation, ensuring all references pointed to ./well-known/agent-card.json as specified by the A2A protocol. This backend adjustment, implemented using Java and Markdown, eliminated confusion caused by mislocated agent card references and streamlined the onboarding process for developers. While the work centered on a single bug fix, it demonstrated careful attention to protocol standards and set a foundation for future enhancements in API integration and backend development.