During November 2025, Hendrik Oesselbarth focused on improving the reliability of API documentation for the IQSS/dataverse repository. He addressed a bug in the DeleteFiles API documentation by correcting the JSON payload format to accurately reflect the API’s actual requirements, reducing the risk of usage errors and misimplementations. Working primarily with Python and leveraging his skills in API development and documentation, Hendrik ensured that the documentation now aligns with the API specification, which streamlines onboarding for new developers and supports safer integrations. His work emphasized maintainability and correctness, contributing to a more consistent and developer-friendly experience within the project.