During April 2025, Daniec focused on improving metadata accuracy within the web-platform-tests/wpt-metadata repository. He addressed a misclassification issue by removing the incorrect interop-2025-webcompat label from SharedWorker and Worker constructor tests in the META.yml file. This work involved careful metadata management and test configuration using YAML, ensuring that test classifications aligned with intended outcomes. By refining labeling conventions and updating documentation, Daniec enhanced the reliability of CI test results and reduced the risk of false positives or negatives. The depth of this work lay in its attention to detail, directly supporting robust governance and maintainability of test metadata.