Sarfaraz Rabi focused on improving the documentation quality for the hiero-ledger/hiero-sdk-cpp repository, specifically addressing inaccuracies in the TokenId API documentation. Working primarily with C++ and leveraging strong documentation skills, Sarfaraz identified and corrected errors in TokenId.h to ensure the documented methods and properties accurately matched the current API surface. This targeted fix reduced potential confusion for developers and streamlined onboarding for new integrators. By aligning the documentation with actual code behavior, Sarfaraz enhanced maintainability and supported governance practices, demonstrating attention to detail and a commitment to clear communication within the codebase, though no new features were introduced.