Microsoft is rolling out a SharePoint agents update that overhauls how organizations discover and manage AI agents on their sites, according to Message Center post MC1315219 reported by Modern Workspace Pro.
The update introduces a Site AI settings panel in SharePoint site settings, giving site owners control over which agent serves as the site’s default. For existing sites, the current default agent automatically becomes the main agent. New sites default to SharePoint’s “ready-made agent,” which is scoped to the site’s content and requires no configuration from admins.
Agent Discovery Changes
The bigger shift is in how users find agents. Approved agents will no longer appear in the agent picker or overflow menu in the chat pane. Instead, site owners must surface agents directly on pages using web parts (Agent Link, Editorial Card, or shared .agent file links in the Text web part). Users can still find recently used agents through Microsoft 365 Copilot’s agents list, OneDrive’s Recent view, or the “Owned by me” section with the Agents filter, according to the Microsoft message.
The feature is on by default and requires no tenant-level configuration changes. Microsoft updated the rollout timeline on June 15, expecting completion by mid-June 2026, after initially targeting early June. The rollout began in mid-November 2024.
The UX Signal
The update reflects a pattern across enterprise agent platforms: discoverability remains an unsolved problem. Microsoft is moving from a centralized agent picker to contextual placement, pushing the responsibility for agent visibility to site owners rather than surfacing agents automatically. For organizations running multiple custom agents across SharePoint, this means an additional configuration step to ensure agents remain accessible after the update takes effect.