Sam Tobin-Hochstadt focused on improving the reliability of the racket/racket repository’s continuous integration pipeline by addressing test flakiness in the deprecation suite. He identified a persistently failing deprecation test and temporarily disabled it, ensuring that CI runs remained stable and productive while the underlying issue was investigated. This approach reduced false negatives and allowed the development team to maintain release velocity without being blocked by unreliable test results. Sam applied his debugging and testing skills using Racket, carefully linking all changes to specific commits for future traceability. His work provided a targeted, maintainable solution to a recurring CI stability problem.