Microsoft just launched an AI that does your office work for you — and it's built on Anthropic's Claude

Saw the Microsoft announcement this morning and it's actually significant. They launched Copilot Cowork today - an AI agent built inside Microsoft 365 that doesn't just answer questions. It executes multi-step work across Outlook, Teams, Excel, and PowerPoint while you do something else. You describe what you want done. It builds a plan. It executes it. Checks in with you before applying anything final.