Worked on the weseek/growi repository to support the API v3 deprecation effort by reducing the API surface and streamlining documentation. Focused on backend and API development using JavaScript and TypeScript, the work involved removing the 'Staff' endpoint from the API definition to improve maintainability and clarify migration paths for clients. Additionally, cleaned up Swagger and OpenAPI documentation for the healthcheck route, aligning the docs with recent route changes and the overall deprecation strategy. These targeted updates enhanced repository hygiene, improved change traceability, and reduced support overhead, contributing to a smoother transition for clients migrating away from deprecated endpoints.