AIchain Agent: Plan, Act, Reflect (opens in new tab)

A Chain knows every step before it runs. You define step one, step two, step three — and it executes them in order. That works when the problem is well-understood. But what happens when you don't know the steps in advance? When the output of one step determines whether you need two more steps or five? When a search returns nothing useful and the whole approach needs to change mid-run? That's where Agent comes in. It plans, observes what happened, and decides what to do next. The difference be...