An AI agent is software that can take actions toward a goal, not just generate text. For a business, that might mean answering a website visitor's questions from your own pricing and service information, asking the qualifying questions a salesperson would ask, and booking a call or handing over to a human with a summary attached.
This category separates what agents do reliably today from what is still hype. It covers where an agent pays for itself fastest — usually first response and qualification — how to ground it in your own knowledge so it doesn't invent prices or promises, how to keep a human in the loop, and how to measure whether it actually improves conversion rather than just looking impressive.
It also looks at the bigger shift: as platforms automate bidding, creative and attribution, the marketer's job moves from doing the work to defining objectives and data. Understanding agents is now part of understanding marketing itself.