# Day 03 | AI BUILDER SERIES | Copilot Cowork Build your first skill? #m365 #microsoftoffice  #copilot

**Published:** October 7, 2026
**Author:** Microsoft 365 Developer
**Source:** YouTube — Microsoft Developer
**Language:** en-US
**HTML:** https://aiqazaqstan.com/en/articles/day-03-ai-builder-series-copilot-cowork-build-your-first-skill-m365-micr

In this video, In this video, we explore Agent Skills in Microsoft Copilot Cowork and build a custom skill from scratch. You’ll learn how Skills extend Cowork with reusable instructions, workflows, and domain-specific behavior. 🔹 Understand what Agent Skills are 🔹 Learn how…

> From the original source: **YouTube — Microsoft Developer**
> [Read full article at YouTube — Microsoft Developer](https://www.youtube.com/shorts/cHBOFtX_zy0)

**Tags:** #Microsoft #YouTube

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