Does the Planner Agent use Cowork?

The available information describes Microsoft 365 Copilot Cowork and the Project Manager agent in Planner separately and does not state that the Planner agent uses Cowork or Cowork-style agentic reasoning.

From the context:

• Cowork is an agentic AI that completes multi-step work across Microsoft 365 apps (email, documents, meetings, search, etc.) and is available as part of the Frontier preview program.
• Planner has its own Project Manager agent (in public preview) that automates project management tasks inside Planner: creating plans, generating tasks from goals, assigning tasks, and tracking progress.

There is no documentation here indicating that:

• The Planner Project Manager agent is built on Cowork, or
• It will be upgraded to use Cowork’s agentic capabilities or SharePoint/organizational search in the same way Cowork does.

Only the following can be stated based on the context:

• Cowork provides multi-app, multi-step automation across Microsoft 365 (including search across OneDrive and SharePoint).
• Planner’s Project Manager agent focuses on automating work management inside Planner.
• No roadmap or commitment is documented here about Planner’s agent being upgraded to use Cowork or Cowork-like reasoning.

For deeper integration with SharePoint and internal documents, Cowork is explicitly documented as the agent designed to search across organizational resources and perform multi-step tasks.

References:

• Cowork common questions (Frontier)
• Use Cowork (Frontier)
• Get started with Cowork (Frontier)
• What's new in Cowork (Frontier)
• Cowork overview (Frontier)
• Frequently asked questions about Microsoft Planner