Worked on the DefinitelyTyped/DefinitelyTyped repository to streamline type management for OpenSeadragon by removing its type definitions, following the library’s adoption of bundled types. This update reduced the maintenance overhead and minimized the risk of type drift for downstream TypeScript projects. The approach emphasized careful library management and type definition governance, ensuring that dependency hygiene was maintained throughout the process. Collaboration was conducted through a pull request-driven workflow, with clear documentation and coordination across teams. The work demonstrated a strong focus on code quality and maintainability, leveraging TypeScript expertise to improve the developer experience for users relying on accurate type information.