In India, most shared flats hire a cook who comes daily. But nobody coordinates — the cook calls one flatmate every morning asking what to make, and groceries run out with no one tracking them. KitchenOS is a AI WhatsApp bot that sits between flatmates and their cook. Flatmates text or voice-note meals. Cook receives the meal plan as text + voice note in Hindi, Kannada, or English. Cook voice-notes when groceries run low — items parsed, everyone notified. No app. Just WhatsApp. Free.