Mike McBride on M365

Mike McBride on M365

Copilot Cowork Artifacts

Bonus Issue To Share an Alarming Compliance Issue with the new Frontier Agent

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Mike McBride
Jun 02, 2026
∙ Paid

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I’ve been investigating some of the new Copilot features for the blog and my day job recently, and I came across something I've been wondering about in the eDiscovery space.

Copilot Cowork is the new Frontier agent that is Microsoft’s answer to Claude Cowork, in that it can create and send emails on your behalf, write summaries or meeting recaps, and create documents or even set up follow-up meetings.

I have tried doing a few basic tests with it, things like asking it to make suggestions for managing my calendar next week, where it went ahead and offered to block off time for me to finish up some tasks at the end of the week, and suggesting which meetings I could most likely skip. (Spoiler alert - while I understood the reasoning, it was a meeting scheduled by my boss, so maybe not.)

One thing I found a little interesting, though, was that the interaction with the agent did not follow the typical pattern of every other agent in the Copilot environment.

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Typically, the prompt and response would appear in the user's mailbox as a Copilot Activity, but in this case, they did not. The email was in the mailbox twice, once as a sent item and then again in the inbox, because Cowork used my email account to send it to myself.

But there was no corresponding Copilot interaction.

Why?

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