Worked on the GetStream/stream-chat-swiftui repository to deliver a new public API surface for the mentions command handler, enabling developers to customize and integrate mentions processing more easily within the chat UI. The approach involved exposing the commandsHandler and related methods, allowing for tailored mentions behavior while maintaining API stability. Updated the changelog to document these API changes and provide usage guidelines for other developers. Utilized Swift and SwiftUI to implement these enhancements, focusing on improving developer flexibility and the end-user chat experience. The work demonstrated a clear understanding of Chat SDK architecture and public API design principles.