DuetNest Meta Hackathon

DuetNest Tomorrow Ready turns school messages into a personal plan that survives change. A parent pastes a chat, email, PDF text or photo OCR, reviews actions and exact source quotations, and marks work done. When a later message changes the meeting time, the parent attaches it to the same event and reviews the replacement; unmentioned requirements and completed work remain. A whole-event cancellation requires an exact quotation and explicit confirmation, removes active preparation, and preserves history and undo. Our three-minute demo follows a fictional Ukrainian chat: return a form today by 20:00, meet tomorrow at 08:20, bring water and a raincoat. After form and water are marked done, the meeting moves to 08:05. Cancellation stops preparation; undo restores the time and both completion marks. One parent benefits without waiting for a second account. 139 offline regression tests pass. The supplied key-free replay uses recorded real Meta responses, clearly labelled; live arbitrary-text analysis is a separate configured route. Recent diagnostic calls produced two valid first-chat responses in 10.8 and 16.9 seconds and two validation rejections. This is a prototype, not a claim of universal accuracy or completed independent parent validation. The standalone base existed on 26 October; the hackathon contribution adds document reliability, one-parent action flow, completion-preserving revisions, reviewed cancellation, history/undo, Ukrainian and Estonian core UI, relative chat dates and reproducible evaluation. Production DuetNest is separate.