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microsoft--semantic-kernel/dotnet/samples/AgentFrameworkMigration/OpenAI/Step01_Basics/Program.cs
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C#

// Copyright (c) Microsoft. All rights reserved.
using Microsoft.Agents.AI;
using Microsoft.SemanticKernel;
using Microsoft.SemanticKernel.Agents;
using Microsoft.SemanticKernel.Connectors.OpenAI;
using OpenAI;
using OpenAI.Chat;
var apiKey = Environment.GetEnvironmentVariable("OPENAI_API_KEY") ?? throw new InvalidOperationException("OPENAI_API_KEY is not set.");
var model = System.Environment.GetEnvironmentVariable("OPENAI_MODEL") ?? "gpt-4o";
var userInput = "Tell me a joke about a pirate.";
Console.WriteLine($"User Input: {userInput}");
await SKAgentAsync();
await SKAgent_As_AFAgentAsync();
await AFAgentAsync();
// Example of Semantic Kernel Agent code
async Task SKAgentAsync()
{
Console.WriteLine("\n=== SK Agent ===\n");
var builder = Kernel.CreateBuilder().AddOpenAIChatClient(model, apiKey);
var agent = new ChatCompletionAgent()
{
Kernel = builder.Build(),
Name = "Joker",
Instructions = "You are good at telling jokes.",
};
var thread = new ChatHistoryAgentThread();
var settings = new OpenAIPromptExecutionSettings() { MaxTokens = 1000 };
var agentOptions = new AgentInvokeOptions() { KernelArguments = new(settings) };
await foreach (var result in agent.InvokeAsync(userInput, thread, agentOptions))
{
Console.WriteLine(result.Message);
}
Console.WriteLine("---");
await foreach (var update in agent.InvokeStreamingAsync(userInput, thread, agentOptions))
{
Console.Write(update.Message);
}
}
// Example of Semantic Kernel Agent code converted as an Agent Framework Agent
async Task SKAgent_As_AFAgentAsync()
{
Console.WriteLine("\n=== SK Agent Converted as an AF Agent ===\n");
var builder = Kernel.CreateBuilder().AddOpenAIChatClient(model, apiKey);
#pragma warning disable SKEXP0110 // Type is for evaluation purposes only and is subject to change or removal in future updates. Suppress this diagnostic to proceed.
var agent = new ChatCompletionAgent()
{
Kernel = builder.Build(),
Name = "Joker",
Instructions = "You are good at telling jokes.",
}.AsAIAgent();
#pragma warning restore SKEXP0110 // Type is for evaluation purposes only and is subject to change or removal in future updates. Suppress this diagnostic to proceed.
var thread = await agent.CreateSessionAsync();
var agentOptions = new ChatClientAgentRunOptions(new() { MaxOutputTokens = 1000 });
var result = await agent.RunAsync(userInput, thread, agentOptions);
Console.WriteLine(result);
Console.WriteLine("---");
await foreach (var update in agent.RunStreamingAsync(userInput, thread, agentOptions))
{
Console.Write(update);
}
}
// Example of a fully migrated Agent Framework Agent code
async Task AFAgentAsync()
{
Console.WriteLine("\n=== AF Agent ===\n");
var agent = new OpenAIClient(apiKey).GetChatClient(model)
.AsAIAgent(name: "Joker", instructions: "You are good at telling jokes.");
var thread = await agent.CreateSessionAsync();
var agentOptions = new ChatClientAgentRunOptions(new() { MaxOutputTokens = 1000 });
var result = await agent.RunAsync(userInput, thread, agentOptions);
Console.WriteLine(result);
Console.WriteLine("---");
await foreach (var update in agent.RunStreamingAsync(userInput, thread, agentOptions))
{
Console.Write(update);
}
}