Worked on the microsoft/agent-framework repository to address a bug affecting chat message role assignment in .NET applications. Focused on backend development using C#, the developer replaced a hard-coded ChatRole.User value with a dynamic ChatRole based on the message’s original role, ensuring accurate role propagation in both ToChatMessage and FunctionMessage scenarios. This change improved message handling consistency across chat applications. Unit tests and formatting were updated to validate and reflect the new logic, confirming correct role assignment in all relevant branches. The work was delivered collaboratively, demonstrating attention to detail and a methodical approach to maintaining code quality and reliability.