Worked on integrating the Playwright testing framework into the microsoft/DefinitelyTyped-tools repository to enable end-to-end automated testing. Focused on configuration and dependency management by updating the allowedPackageJsonDependencies.txt file to include the '@playwright/test' package, thereby allowing Playwright as an approved dependency. This change established a foundation for scalable test automation, aiming to improve continuous integration reliability and developer productivity. The work involved careful management of text-based configuration files and adherence to repository policies, ensuring that future testing enhancements can be built on a stable base. No bugs were fixed during this period, with efforts concentrated on feature enablement.