Worked on the facebook/fbthrift repository to enhance the stability and privacy of the XSU Consent Service by introducing a Thrift service name constant within the IThriftClient interface. This change addressed the risk of infinite recursion during consent checks and ensured that privacy commitments were consistently upheld. The approach aligned the XSU consent flow with the PZ service by adopting the same Thrift opt-out logic, improving both reliability and maintainability. The work focused on backend development using PHP and Thrift, emphasizing API design principles to streamline consent evaluations and reduce unnecessary processing, ultimately strengthening the service’s privacy and operational guarantees.