Worked on the FlatFilers/flatfile-plugins repository, focusing on improving plugin maintainability and API robustness over a two-month period. Developed and integrated a unified TickFunction type using TypeScript to standardize progress reporting across multiple plugins, enhancing type safety and reducing custom implementations. Subsequently, delivered a breaking API change by making the FlatfileEvent parameter mandatory in RecordHook and BulkRecordHook, ensuring handlers consistently receive event data and minimizing runtime errors. Documented the API update with a changeset to support downstream maintainers. The work emphasized plugin development, API integration, and careful attention to developer experience while maintaining stability for existing consumers.