During November 2024, Antek Kajtoch focused on enhancing the reliability of Discover visualizations in the tkajtoch/kibana repository. He addressed rendering errors by implementing a data view configuration validation for the UnifiedHistogram component, ensuring Discover-Lens integrations no longer failed due to invalid configurations. To improve test stability, Antek refactored UnifiedDataTable tests using waitFor from @testing-library/react, allowing asynchronous operations to complete before assertions and reducing flaky test outcomes. Working primarily with JavaScript, TypeScript, and React, he re-enabled previously skipped functional tests, resulting in more predictable releases and faster feedback cycles for the Kibana codebase.