At Sequoia's AI Ascent conference, the discussion centered around the limitations and possibilities of user experience (UX) for AI agents, focusing on spreadsheet, generative, and collaborative interfaces. The spreadsheet UX, exemplified by AI-native applications like Matrices, offers an intuitive, familiar format for users, facilitating batch workloads and data enrichment by turning each cell into an individual agent. Generative UI, which can either involve AI generating raw HTML components or mapping responses to predefined UI elements, presents a balance between flexibility and polish, with applications like WebSim showcasing its potential. Collaborative UX explores human-agent collaboration, akin to Google Docs, where agents and users work simultaneously, with projects like Patchwork highlighting this dynamic. These UX innovations heavily influence infrastructure development, as seen in LangChain's LangGraph Cloud, which adapts to emerging trends to enhance agentic application scalability and functionality.