Microsoft

Copilot Cowork Custom Skills, One Week On: Microsoft Quietly Rewrote the Model

A week after my first Copilot Cowork custom skills post, Microsoft has quietly changed three of the behaviours I documented. The install flow, the Skills panel, and the skill format have all moved. None of it is in Microsoft Learn yet.

Microsoft

Copilot Cowork Custom Skills: Here's What I Found

I tested Copilot Cowork custom skills for a week. The docs make setup look simple, but there's undocumented behaviour, built-in skill conflicts, and a persistence gap vs Claude Cowork.