Worked on the tensorflow/tensorflow repository to clarify the behavior of gRPC insecure credentials within the codebase. Focused on updating documentation and comments for the GetDefaultServerCredentials function, ensuring it accurately reflects that the function returns insecure credentials for both gRPC server and channel creation. This change aimed to reduce the risk of misconfiguration and align documentation with actual runtime behavior, particularly in security-sensitive contexts. Navigated a large-scale C++ codebase and applied expertise in gRPC to improve maintainability and developer understanding. The work addressed a documentation bug, emphasizing careful attention to detail and a methodical approach to codebase improvements.