Most of the automation I have built over the years follows the same recipe. A trigger fires, a chain of predefined steps runs, and everything works until reality produces an input nobody mapped. Then a ticket gets filed and a human patches the flow. For a long time, that was simply the cost of workflow automation.Agentic AI workflows change the deal, but not in the way the hype suggests. They are not killing traditional automation. They are swallowing it. The cron jobs, API integrations, and RPA bots that quietly run most businesses are not going away. They are getting demoted from the system that decides to the system that gets called. That change in position is the real story, and it has concrete architectural consequences. This breakdown covers where the two models genuinely differ and where each one still wins.