# Microsoft Fabric with the Responses API This sample shows how to use the Microsoft Fabric tool with a `ChatClientAgent` using the Responses API directly. ## What this sample demonstrates - Configuring `FabricDataAgentToolOptions` with project connections - Using `FoundryAITool.CreateMicrosoftFabricTool()` with `ChatClientAgent` - Querying data available through a Fabric connection ## Prerequisites - .NET 10 SDK or later - Microsoft Foundry service endpoint and deployment configured - Azure CLI installed and authenticated (`az login`) - Microsoft Fabric connection configured in your Microsoft Foundry project Set the following environment variables: ```powershell $env:AZURE_AI_PROJECT_ENDPOINT="https://your-foundry-service.services.ai.azure.com/api/projects/your-foundry-project" $env:AZURE_AI_MODEL_DEPLOYMENT_NAME="gpt-5.4-mini" $env:FABRIC_PROJECT_CONNECTION_ID="your-fabric-connection-id" # The full ARM resource URI, e.g., "/subscriptions/.../connections/FabricTestTool" ``` ## Run the sample ```powershell dotnet run ```