We're introducing dynamic tool discovery for declarative agents in Microsoft 365 Copilot. Developers can now add, update, or retire tools on their MCP servers without republishing the agent - so end users get the latest agent capabilities immediately, with no deployment cycle in between. Support for federated Copilot connectors will be a fast follow to declarative agents at a later stage. Dynamic tool discovery is backed by Microsoft's enterprise RAI and security protections, and customers retain full control over agent deployment and availability to users and groups.
GA date: June CY2026