Same Task, Two Endings: A Payment Integration With and Without the Planning Gateway

Introduction The previous article argued an architecture: move governance from the edges of the agentic loop (a wall of instructions at minute zero, a CI gate at the end) to the inside of the loop. It introduced a working proof of concept, the Platform Planning Gateway (PPG). This article does something simpler: it tells a story. One task, one agent, two runs. In the first run there is no gateway;…