Worked on the element-plus/element-plus repository, focusing on enhancing the MessageBox component’s type safety and API consistency. Addressed a critical bug by correcting the MessageBoxData type definition to support both MessageBoxInputData and Action, which improved flexibility and reduced type-related errors for downstream developers. The solution was implemented as a minimal, well-scoped change, aligning the component with established TypeScript standards and conventions. Leveraged skills in component development, type definitions, and TypeScript to ensure safer usage and broader compatibility across MessageBox implementations. The work emphasized maintainability and clear documentation, contributing to a more robust and reliable codebase for future development.