Worked on the Snowflake-Labs/sansshell repository to deliver secure inter-process communication by enabling extra file descriptor passing for external commands. Focused on enhancing util.RunCommand to allow secrets and sensitive data to be transmitted securely without relying on disk files or command-line arguments, thereby reducing data exposure risks. Implemented this feature using Go, leveraging system programming and command execution skills to ensure robust integration. Developed comprehensive end-to-end tests to verify the reliability of the new IPC mechanism and maintain code quality. The work was tightly scoped to a single feature area, with added tests to prevent regressions and ensure long-term maintainability.