stclarke presents the September 2025 roundup of Microsoft Copilot Studio, highlighting enhanced agent automation, SDKs for app integration, analytics features, prompt testing tools, and new learning resources for developers and makers.

What’s New in Copilot Studio: September 2025

Build Richer Agent Experiences

Automate UI Tasks with Computer Use

  • Computer use allows agents to operate apps and websites via virtual mouse and keyboard.
  • Now in public preview for U.S.-based environments, supporting secure credential management, allow-list controls, and hosted browser automation via Windows 365.
  • Makers can use templates for common workflows and bring Copilot Studio agents into day-to-day human-style navigation tasks.

WhatsApp Channel General Availability

  • Agents can now engage customers directly through WhatsApp, leveraging native integration.
  • Supports authentication, interactive attachments, and compliance frameworks.
  • Enables broad customer support and engagement workflows.

Advanced Prompt Builder Features

  • Prompt Evaluations: Systematic prompt testing (bulk upload/generation, real user data, or manual cases), with results including accuracy scores and case-level insights.
  • Power Fx Support: Embed dynamic formulas into prompts for context-aware responses—date, text formatting, data lookups, and more.

Knowledge File Groups

  • Makers can create up to 25 file groups (max 12,000 files per agent) as unified knowledge sources.
  • Variable-based instructions enable precise, scenario-driven responses.

Component Collections for Lifecycle Management

  • Bundle agent components (topics, actions, knowledge, entities) into reusable, portable collections or whole solutions for streamlined deployment across environments.

End User File Uploads

  • Agents now accept and process file inputs from users, routing them through flows, connectors, or Power Automate for document-centric workflows like summarization or validation.

Extend and Customize Agents

Code Interpreter (GA)

  • Python actions can now be created, edited, and executed at runtime by agents.
  • Prompt builder now supports CRUD operations on Dataverse tables and agent-driven visualizations.
  • Code interpreter can be enabled globally or at the prompt level for targeted scenarios.

Agents Client SDK

  • Embeds Copilot Studio agents into Windows, iOS, and Android apps for native conversational experiences; supports text and adaptive card interactions now, with multimodal support on the horizon.

Simplified MCP Connector Creation

  • Connect to MCP servers with minimal manual setup; now in preview with support for various resource types.
  • Expands Copilot Studio agent reach and data flexibility.

Manage and Measure at Scale

Dedicated Environment for Copilot Studio Lite

  • Each Lite agent runs in a dedicated Microsoft 365 Copilot Chat environment, ensuring correct data residency, billing, and easier administrative oversight.

Detailed Analytics and Reporting

  • New metric dashboards: generative AI themes, unanswered question analysis, agent credit limits, and active user tracking.
  • ROI calculations for automated agent runs.
  • Enhanced capability for makers and admins to monitor, diagnose, and improve agent performance at scale.

Upskill with the Copilot Studio Agent Academy

  • Free curriculum for beginners to advanced makers/developers, organized into Recruit, Operative, and Commander tracks.
  • Hands-on labs and best practice guidance with the opportunity to earn Credly badges.

Additional Resources

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