Tobixlea worked on stabilizing the test infrastructure for the aws/aws-sam-cli repository by addressing how missing remote test-event lists are handled during LambdaSharedTestEvent listing. Using Python and leveraging backend development skills, Tobixlea modified the error handling logic so that ResourceNotFound errors are now logged as informational messages rather than causing exceptions. This targeted change improved the reliability of test-event listing and reduced test flakiness, leading to more stable continuous integration cycles. Unit tests were updated to reflect the new behavior, ensuring consistency across environments while maintaining a minimal code footprint and avoiding any impact on production logic.