the.com/agent

means A person or thing authorized to act on behalf of someone else, handling tasks or decisions so the principal doesn't have to.

from From Latin 'agens,' the present participle of 'agere' — 'to do, drive, or act' — the same root that gives us 'act,' 'action,' and 'agenda' (literally 'things to be done'). An agent, then, is simply 'the one doing' — a doer deputized to do for you. The word slid into English through French in the 1500s, first for people who transacted business for others, long before it picked up its modern habit of sometimes being software that quietly does the deciding too.