Nicolas Catoni developed a CI optimization for the DataDog/system-tests repository, focusing on reducing unnecessary build and test runs when only documentation files are changed. He implemented a doc-change detection mechanism using Python scripting, which identifies modifications to files such as .md, .rdoc, and .txt, and gates CI/CD triggers accordingly. This approach streamlines the workflow for documentation contributors by providing faster feedback and conserving CI resources. The solution demonstrates a practical application of CI/CD principles and scripting skills, addressing a targeted efficiency issue. Over the month, Nicolas delivered this feature with depth, though the scope was limited to a single enhancement.