Worked on the microsoft/agent-framework repository to upgrade the GitHub Copilot SDK to version 0.1.23, introducing enhanced session configuration properties such as ReasoningEffort, Hooks, and WorkingDirectory. Focused on improving configurability and maintainability by centralizing session and configuration mapping through internal static helpers, which reduced code duplication and drift risk. Expanded unit test coverage by adding property-verification tests and enabling InternalsVisibleTo for more robust testing. Utilized C#, .NET, and test-driven development practices to ensure safer and faster Copilot session deployments. Also performed housekeeping by removing unnecessary git-lfs hooks, contributing to a cleaner and more maintainable codebase overall.