Quincy Labs

Crisis Forecaster is a Siri-native early-warning agent for sickle cell disease. Vaso-occlusive crises are preceded by signals — rising resting heart rate, falling HRV, blood-oxygen dips, fragmented sleep, and weather shifts — but no patient-facing tool fuses them. Crisis Forecaster reads HealthKit vitals + WeatherKit + the patient's own check-ins, and Claude Opus 4.8 scores crisis risk 24–72h out and explains why in plain language. On elevated risk it auto-drafts an Emergency Passport — the ER handoff packet — so the handoff is done before the visit. iOS 27 App Intents make it ambient: the patient asks Siri or glances at a lock-screen widget and never opens the app. Built from 37 years of lived experience with the disease. Prediction is the feature; the Passport is the moat.