unhandled exception in Foundry playground AI agent

Hi Ron Klaassen,

Thanks for sharing the Request ID and the note that the unhandled exception happens when the agent uses the Work IQ Calendar tool.

This tool is part of Work IQ Calendar which is a preview feature, and Work IQ tools have a few requirements that can cause failures if they are not met. [learn.microsoft.com], [learn.microsoft.com]

First, please confirm that Work IQ is enabled for your tenant and that you have a Microsoft 365 Copilot license. The Work IQ MCP overview states that you must have a Microsoft 365 Copilot license to use Work IQ MCP servers, and that admins manage Work IQ MCP servers in the Microsoft 365 admin center where they can allow or block servers.

Second, confirm that you are using the correct Work IQ Calendar MCP server connection. The Work IQ Calendar reference lists the server ID as mcp_CalendarTools and describes it as the Work IQ Calendar MCP server for calendar tools. [learn.microsoft.com]

Third, confirm the basics of the Foundry playground setup. The Microsoft Foundry Playgrounds documentation lists prerequisites including an Azure subscription, a Microsoft Foundry resource, and at least one deployed model in the Foundry resource. [learn.microsoft.com]

To narrow down the root cause, a simple isolation check is to temporarily run the same agent without the Work IQ Calendar tool enabled. If the agent works without the tool and fails only when Work IQ Calendar is enabled, that points to the Work IQ connection, licensing, or tenant policy side rather than the base agent or model deployment. This is a practical troubleshooting step based on the tool dependency you reported.

Also, because Work IQ Calendar is documented as a preview feature, you might see restricted functionality or unexpected behavior in some cases. The Work IQ Calendar reference marks it as preview, and the Work IQ MCP overview also highlights preview limitations.

Helpful official references you can include in the thread for others to follow

Work IQ Calendar reference preview [learn.microsoft.com]

Work IQ MCP overview preview including licensing and governance notes [learn.microsoft.com]

Microsoft Foundry Playgrounds prerequisites and overview [learn.microsoft.com]

I Hope this helps. Do let me know if you have any further queries.

Thankyou!