m365-agents-dotnet

Topics in the source

• Microsoft 365 Agents SDK (.NET)
• Overview
• Before implementation
• Installation
• Configuration (appsettings.json)
• Core Workflow: ASP.NET Core agent host
• AgentApplication routing
• Copilot Studio direct-to-engine client

Build enterprise agents for Microsoft 365, Teams, and Copilot Studio using the Microsoft.Agents SDK with ASP.NET Core hosting, agent routing, and MSAL-based authentication. Use the microsoft-docs MCP to verify the latest APIs for AddAgent, AgentApplication, and authentication options. Confirm package versions in NuGet for the Microsoft.Agents.\ packages you plan to use. 1. Use AgentApplication subclasses to centralize routing and error handling. 2. Use MemoryStorage only for development; use persisted storage in production. 3. Enable TokenValidation in production and require authorization on /api/messages. 4. Keep auth secrets in configuration providers (Key Vault, managed identity, env vars). 5. Reuse HttpClient from IHttpClientFactory and cache MSAL tokens. 6. Prefer async handlers and pass CancellationToken to SDK calls. | Resource | URL | | -------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------ | | Microsoft 365 Agents SDK | https://learn.microsoft.com/en-us/microsoft-365/agents-sdk/ | | AddAgent API | https://learn.microsoft.com/en-us/dotnet/api/microsoft.agents.hos

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