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Field notes from building Microsoft 365 Copilot agents — custom engine agents, Copilot Studio, Cowork, the Model Context Protocol — and running them in enterprise Azure environments.

Written by Ondrej Stefka — LinkedIn.

Disclaimer

This is a personal blog, written in a personal capacity. Everything published here reflects my own independent testing and my own opinions, and represents the views of no one but me — not of any employer, client or organisation.

It does not express an official Microsoft position or statement, and it is not official Microsoft documentation in any way. Nothing here should be read as a commitment, a recommendation, or a support statement from Microsoft.

For authoritative and supported guidance, always refer to Microsoft Learn.

Everything published here was measured in a lab tenant rather than taken from documentation. Where a claim is reasoning rather than measurement, it says so. These surfaces change quickly, so each article states when it was last checked.

Corrections are welcome — open an issue on the repository.