Developed and delivered a core data-maintenance feature for the web-platform-tests/wpt-metadata repository, focusing on manifest data synchronization to ensure test data remained current and reliable. Implemented an automated refresh mechanism using Shell scripting and API integration, which fetched the latest manifest from wpt.fyi and updated the local go_test/MANIFEST.json file. This approach reduced manual intervention and minimized data drift, directly improving the validity of test runs and the reliability of continuous integration workflows. The work demonstrated practical DevOps skills by streamlining data updates and maintaining alignment between local and remote test manifests within the project’s infrastructure.