Build a web app that runs sprint retrospectives for agile teams. 1) Facilitator creates a retro, picks a format (start-stop-continue, mad-sad-glad, 4 Ls, sailboat), and shares a link. 2) Anonymous brainstorm board where team members add cards during or before the meeting, with AI clustering duplicate themes as cards come in. 3) Dot voting with live results and a tie-breaker view. 4) AI discussion guide: for the top-voted themes, the app suggests probing questions and flags patterns across sprints, like the same bottleneck appearing three retros in a row. 5) Action item tracker: assign owners and due dates, carried into the next retro with an overdue flag. 6) Async mode for distributed teams: everyone contributes on their own time, then the facilitator runs the discussion live. 7) Sprint health metrics: team-submitted mood scores and velocity trends, shown without singling anyone out. 8) AI summary email after each retro with themes, decisions, and action items. 9) Board templates and a history view of past retros.