During December 2024, Honglian You developed a System Indices Migration Confirmation Modal for the KDKHD/kibana repository, focusing on enhancing operational safety during upgrades. The feature introduced a modal in the Upgrade Assistant workflow that warns users about potential downtime and requires explicit confirmation before migrating system indices, thereby reducing the risk of accidental data loss. Honglian implemented this change using React and TypeScript, emphasizing frontend development and UI/UX best practices. The work was delivered as a single, auditable commit, reflecting a focused and well-scoped engineering effort that improved data integrity and user control without introducing additional bugs or regressions.