An agent that is good at your subject usually means somebody built an app for that
subject. Cora turns that around: the agent is the part that stays, and the subject is
the part you build yourself — a fitness coach, a trip, a lab notebook.
With no loaded plugins it still answers: it searches its documents, remembers what it is told, asks when it cannot tell, and cites what it used. It changes nothing outside itself unless a plugin gave it something that does.
