Worked on the microbiomedata/nmdc-runtime repository to enhance the materialize_alldocs feature by incorporating class ancestry into the _type_and_ancestors field and refining the indexing strategy. This involved refactoring the Dagster operation responsible for materializing alldocs, updating the data model to support improved lineage tracking, and revising documentation to reflect these changes. Leveraged Python, Dagster, and MongoDB to enable more accurate and efficient downstream analytics, making data discovery and lineage queries faster and more reliable. The updated approach also reduced onboarding time for new contributors and improved maintainability by clarifying the data representation and indexing within the collection.