test

dotnet/samples/GettingStarted/FoundryAgents/FoundryAgents_Step02_MultiturnConversation/FoundryAgents_Step02_MultiturnConversation.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFrameworks>net10.0</TargetFrameworks>
+
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Azure.AI.Projects" />
+    <PackageReference Include="Azure.Identity" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\..\..\..\src\Microsoft.Agents.AI.AzureAI\Microsoft.Agents.AI.AzureAI.csproj" />
+  </ItemGroup>
+
+</Project>

dotnet/samples/GettingStarted/FoundryAgents/FoundryAgents_Step02_MultiturnConversation/Program.cs

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+// Copyright (c) Microsoft. All rights reserved.
+
+// This sample shows how to create and use a simple AI agent with a multi-turn conversation.
+
+using Azure.AI.Projects;
+using Azure.AI.Projects.OpenAI;
+using Azure.Identity;
+using Microsoft.Agents.AI;
+
+string endpoint = Environment.GetEnvironmentVariable("AZURE_FOUNDRY_PROJECT_ENDPOINT") ?? throw new InvalidOperationException("AZURE_FOUNDRY_PROJECT_ENDPOINT is not set.");
+string deploymentName = Environment.GetEnvironmentVariable("AZURE_FOUNDRY_PROJECT_DEPLOYMENT_NAME") ?? "gpt-4o-mini";
+
+const string JokerInstructions = "You are good at telling jokes.";
+const string JokerName = "JokerAgent";
+
+// Get a client to create/retrieve/delete server side agents with Azure Foundry Agents.
+AIProjectClient aiProjectClient = new(new Uri(endpoint), new AzureCliCredential());
+
+// Define the agent you want to create. (Prompt Agent in this case)
+AgentVersionCreationOptions options = new(new PromptAgentDefinition(model: deploymentName) { Instructions = JokerInstructions });
+
+// Retrieve an AIAgent for the created server side agent version.
+ChatClientAgent jokerAgent = await aiProjectClient.CreateAIAgentAsync(name: JokerName, options);
+
+// Invoke the agent with a multi-turn conversation, where the context is preserved in the thread object.
+// Create a conversation in the server
+ProjectConversationsClient conversationsClient = aiProjectClient.GetProjectOpenAIClient().GetProjectConversationsClient();
+ProjectConversation conversation = await conversationsClient.CreateProjectConversationAsync();
+
+// Providing the conversation Id is not strictly necessary, but by not providing it no information will show up in the Foundry Project UI as conversations.
+// Threads that doesn't have a conversation Id will work based on the `PreviousResponseId`.
+AgentThread thread = await jokerAgent.GetNewThreadAsync(conversation.Id);
+
+Console.WriteLine(await jokerAgent.RunAsync("Tell me a joke about a pirate.", thread));
+Console.WriteLine(await jokerAgent.RunAsync("Now add some emojis to the joke and tell it in the voice of a pirate's parrot.", thread));
+
+// Invoke the agent with a multi-turn conversation and streaming, where the context is preserved in the thread object.
+thread = await jokerAgent.GetNewThreadAsync(conversation.Id);
+await foreach (AgentResponseUpdate update in jokerAgent.RunStreamingAsync("Tell me a joke about a pirate.", thread))
+{
+    Console.WriteLine(update);
+}
+await foreach (AgentResponseUpdate update in jokerAgent.RunStreamingAsync("Now add some emojis to the joke and tell it in the voice of a pirate's parrot.", thread))
+{
+    Console.WriteLine(update);
+}
+
+// Cleanup by agent name removes the agent version created.
+await aiProjectClient.Agents.DeleteAgentAsync(jokerAgent.Name);
+
+// Cleanup the conversation created.
+await conversationsClient.DeleteConversationAsync(conversation.Id);

dotnet/samples/GettingStarted/FoundryAgents/FoundryAgents_Step02_MultiturnConversation/README.md

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+# Multi-turn Conversation with AI Agents
+
+This sample demonstrates how to implement multi-turn conversations with AI agents, where context is preserved across multiple agent runs using threads and conversation IDs.
+
+## What this sample demonstrates
+
+- Creating an AI agent with instructions
+- Creating a project conversation to track conversations in the Foundry UI
+- Using threads with conversation IDs to maintain conversation context
+- Running multi-turn conversations with text output
+- Running multi-turn conversations with streaming output
+- Managing agent and conversation lifecycle (creation and deletion)
+
+## Prerequisites
+
+Before you begin, ensure you have the following prerequisites:
+
+- .NET 10 SDK or later
+- Azure Foundry service endpoint and deployment configured
+- Azure CLI installed and authenticated (for Azure credential authentication)
+
+**Note**: This demo uses Azure CLI credentials for authentication. Make sure you're logged in with `az login` and have access to the Azure Foundry resource. For more information, see the [Azure CLI documentation](https://learn.microsoft.com/cli/azure/authenticate-azure-cli-interactively).
+
+Set the following environment variables:
+
+```powershell
+$env:AZURE_FOUNDRY_PROJECT_ENDPOINT="https://your-foundry-service.services.ai.azure.com/api/projects/your-foundry-project" # Replace with your Azure Foundry resource endpoint
+$env:AZURE_FOUNDRY_PROJECT_DEPLOYMENT_NAME="gpt-4o-mini"  # Optional, defaults to gpt-4o-mini
+```
+
+## Run the sample
+
+Navigate to the FoundryAgents sample directory and run:
+
+```powershell
+cd dotnet/samples/GettingStarted/FoundryAgents
+dotnet run --project .\FoundryAgents_Step02_MultiturnConversation
+```
+
+## Expected behavior
+
+The sample will:
+
+1. Create an agent named "JokerAgent" with instructions to tell jokes
+2. Create a project conversation to enable visibility in the Azure Foundry UI
+3. Create a thread linked to the conversation ID for context tracking
+4. Run the agent with a text prompt and display the response
+5. Send a follow-up message to the same thread, demonstrating context preservation
+6. Create a new thread sharing the same conversation ID and run the agent with streaming
+7. Send a follow-up streaming message to demonstrate multi-turn streaming
+8. Clean up resources by deleting the agent and conversation
+
+## Conversation ID vs PreviousResponseId
+
+When working with multi-turn conversations, there are two approaches:
+
+- **With Conversation ID**: By passing a `conversation.Id` to `GetNewThreadAsync()`, the conversation will be visible in the Azure Foundry Project UI. This is useful for tracking and debugging conversations.
+- **Without Conversation ID**: Threads created without a conversation ID still work correctly, maintaining context via `PreviousResponseId`. However, these conversations may not appear in the Foundry UI.
+