Worked on schema enhancements for the chalk-ai/chalk-go repository, focusing on improving auditing and scheduled-query support. Delivered updates to the Graph and Audit Log schemas, including the addition of a ChartLinkKind enum for scheduled queries, new unversioned_attribute_name fields in graph feature types, and an error field in the AuditLog struct within the server package. These changes, implemented using Go and Protobuf, aimed to strengthen data integrity, traceability, and error handling across the system. The work emphasized forward compatibility and maintainability, with careful cross-package schema design to reduce migration risk and improve observability without introducing new bug fixes during the period.