LangGraph

The cheapest mistake to prevent is a decision the model never needed to make. Chen Silva, the customer from the previous chapter, owns two tablets and wants the more expensive one returned. In three of the four runs Sierra published, gpt-4o opened the first order that contained a tablet, stopped looking, and returned the $938.92 one while the $989.70 tablet sat in an order it never read. No tool failed and no policy line was broken. Which orders to read was a decision a program should have made for it.