Here, we translate principles into structure. You will master the five-layer "Architecture of Trust" (Intent, Cognition, Control, Feedback, Framing) that replaces traditional UI stacks. Each layer is dissected to reveal its specific role in making cognition legible and governable, forming a closed trust circuit from goal capture to policy verification.

We then operationalize this architecture through a library of six proven design patterns, such as the Plan Preview and Reasoning Trace. You will learn how to map each pattern to specific trust principles and engineering hooks, transforming abstract layers into buildable, interactive contracts between user and agent.