test

dotnet/samples/GettingStarted/AgentProviders/Agent_With_OpenAIResponses/Agent_With_OpenAIResponses.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>
+    <ProjectReference Include="..\..\..\..\src\Microsoft.Agents.AI.OpenAI\Microsoft.Agents.AI.OpenAI.csproj" />
+  </ItemGroup>
+
+</Project>

dotnet/samples/GettingStarted/AgentProviders/Agent_With_OpenAIResponses/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 OpenAI Responses as the backend.
+
+using Microsoft.Agents.AI;
+using OpenAI;
+using OpenAI.Responses;
+
+var apiKey = Environment.GetEnvironmentVariable("OPENAI_API_KEY") ?? throw new InvalidOperationException("OPENAI_API_KEY is not set.");
+var model = Environment.GetEnvironmentVariable("OPENAI_MODEL") ?? "gpt-4o-mini";
+
+AIAgent agent = new OpenAIClient(
+    apiKey)
+     .GetResponsesClient(model)
+     .AsAIAgent(instructions: "You are good at telling jokes.", name: "Joker");
+
+// Invoke the agent and output the text result.
+Console.WriteLine(await agent.RunAsync("Tell me a joke about a pirate."));

dotnet/samples/GettingStarted/AgentProviders/Agent_With_OpenAIResponses/README.md

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+# Prerequisites
+
+Before you begin, ensure you have the following prerequisites:
+
+- .NET 10 SDK or later
+- OpenAI api key
+
+Set the following environment variables:
+
+```powershell
+$env:OPENAI_API_KEY="*****" # Replace with your OpenAI api key
+$env:OPENAI_MODEL="gpt-4o-mini"  # Optional, defaults to gpt-4o-mini
+```