Autonomous intelligent agents are reshaping the client side of web applications. The browser layer is mediates streamed reasoning, tool invocation, structured feedback, and user oversight. This paper examines how frontend development evolves in response to that shift. The aim is to explain the transformation of client-side design logic when autonomous agent technologies enter production web systems. The study draws on ten recent sources from software engineering, human-computer interaction, agent systems, security, and evaluation research. Comparative analysis, source analysis, conceptual synthesis, typologization, and analytical generalization are used. The analytical section identifies three trajectories: moving from component-centered interfaces to agent-mediated workspaces, the emergence of protocol-aware communication layers between the frontend and backend, and expanding quality requirements to include evaluation, accessibility, security, and observability. The paper proposes an implementation logic for agent-enabled client architecture and outlines decision rules for interface composition and monitoring in production-grade web products
Tounzal Elias (Thu,) studied this question.