Agent-driven UI — A Technical Analysis of the Freesail SDK

The transition from deterministic graphical user interfaces to stochastic, agent-driven interfaces represents a fundamental shift in Human - AI interaction. This evolution - frequently categorised as Generative User Interface (GenUI) - moves toward real-time, context-aware interface construction powered by Large Language Models. Two distinct architectural paradigms have emerged to address this problem, and the choice between them has deep implications for security, performance, and portability.