WTF are AI agents?

https://digiday.com/marketing/wtf-are-ai-agents/

She worked with the demobbed. With so much counselling and therapy work outsourced to AIs, she was glad of the work. And there was a lot of work. The numbers leaving a secure and clearly structured environment were increasing. They were rejoining society and they were at a loss. Their life had been run for them. Everything done for them. Everything else was taken care of. And now without the Agents their employer had given them they were on their own and many were simply unable to function. They looked at her hoping she’d be their new Agent. Lost. Alone.