Worked on the astro-datalab/notebooks-latest repository to enhance test-suite hygiene by updating the test configuration. Focused on maintaining production stability, the developer implemented a feature that added test17 to the test_ignore.txt file, ensuring that noisy or unstable tests would not affect continuous integration results. This change, made using text-based configuration skills, did not alter any product functionality but contributed to a cleaner and more reliable CI process. The work involved careful management of configuration files and attention to the impact of test noise on development workflows, demonstrating a methodical approach to improving the reliability of automated testing environments.