Introduction Refer to blog post Triggering a Power Automate HTTP Trigger from External Applications - testing with Postman for the initial Power Automate flow set up and testing with Postman. In this post, I’ll show you how to build a Microsoft 365 Copilot declarative agent that invokes a Power Automate flow with an HTTP trigger using Microsoft 365 Agents Toolkit. This approach enables you to extend Copilot’s capabilities by orchestrating complex workflows without writing custom code.

Table of Contents Introduction Prerequisites Implementation Guide Creating Your Agent Configuring TypeSpec Files Setting Up Authentication Testing & Troubleshooting Conclusion References Introduction Following on my blog post Declarative Agents: Azure OpenAI API Key Auth with TypeSpec, I decided to try out how to authenticate to Ms Graph using sample Tasks Agent using TypeSpec for Microsoft 365 Copilot that connects to the Microsoft Graph APIs created by Sébatien Levert. Why This Matters: Copilot out of the box can not retrieve data from SharePoint List.

Table of Contents Introduction Use Cases Step-by-Step: Create Agent with TypeSpec Limitations & Gotchas Troubleshooting Build Errors main.tsp Solution for OpenAI Action.tsp Example Output: Generated Files Testing Tips for Success Declarative Agent - Volunteering App: MS Graph Auth Challenge Conclusion References Introduction Building declarative agents using the M365 Agents Toolkit and TypeSpec streamlines the process of generating JSON and YAML specifications. This is a great improvement to manually updating and generating JSON and YAML yourself which is not the best experience.