Architecting Interactive Copilot Agents with SharePoint Copilot Apps

Microsoft 365 Copilot excels with language — but work isn't only words. Sometimes you don't want to describe what you need in a back-and-forth chat. You want to see it, touch it, and act on it right where you already are — without ever leaving the conversation to hunt for the right tool. That's the promise of SharePoint Copilot Apps: a new extensibility model that brings rich, interactive UX components directly into the Copilot canvas, built on SPFx and the MCP Apps architecture — with automatic hosting, no infrastructure to manage, and a write-once, deploy-everywhere story across Copilot, SharePoint, and Teams. In this session, we'll explore the architectural decisions behind this model: how declarative agents, plugins, and MCP tools divide responsibility; how widget-first responses work; and what it takes to build production-ready Copilot experiences on this stack.