Agent Builder: Must-Know Update

Key insights

• Agent Builder is Microsoft’s built-in, lightweight tool for creating AI assistants inside Microsoft 365 Copilot.
  Use Copilot Studio when you need deeper customization or enterprise features.
• The 2026 update improves the creation experience rather than agent behavior: clearer build-to-test flow, a Try it toggle for live testing, and default enablement across Copilot tiers.
  Admin and publishing controls remain unchanged.
• Think in roles: the agent is the “who” and a skill is the “how.”
  Add an agent for a new responsibility and add skills for specific tasks — the walkthrough shows moving separate report agents into skills under one project manager agent.
• The demo covers the skill workflow: packaging and uploading a skill, connecting design instructions, summarizing project data from SharePoint, and producing an executive HTML dashboard you can open in OneDrive and refine with Copilot.
• Recent builder features speed creation: AI-generated agent icons, new templates, additional knowledge sources (People, OneNote), and a Copy to Copilot Studio path for advanced work; custom skills are available via Frontier Preview.
• This matters because it lowers friction for makers and helps organizations deliver assistants faster while keeping existing governance intact.
  Choose an agent when you add a new purpose, and choose a skill when you add a specific task.

Keywords

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