An agent that pulls spending from email, receipts, and voice on its own, tracks net worth, and answers only from real numbers in the database.
An agent that turns a plain product description into a spec and a structured request in the factory's language.
Answers patients in Russian, English, and Vietnamese: works out the cost of treatment, checks whether it fits their trip, and books the appointment.
Answers from a real price list of a thousand items, knows the schedule and the doctors, gives no medical advice, and passes requests to the administrator.
My own language-learning app: builds exercises and a vocabulary deck from your own texts, videos, audio, and photos of handwritten vocab pages.
Built a client a system of agents that runs his social media: watches every channel at once, drafts posts on its own, and takes commands in one mini app.