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semantic-kernel/dotnet/samples/AgentFrameworkMigration/AgentOrchestrations/Step01_Concurrent/Program.cs
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Roger BarretoandCopilot fdc6e68f58 .Net: Semantic Kernel -> Agent Framework - Migration/Samples Update (AF 1.0 Compatible) (#13852)
## Description

Updates the SK → Agent Framework migration document, samples, and bridge
code from AF preview (`1.0.0-preview.251009.1`) to GA (`1.0.0`).

### Breaking changes addressed

| Preview API | AF 1.0 GA | Scope |
|---|---|---|
| `AgentThread` | `AgentSession` | Core type rename |
| `GetNewThread()` | `CreateSessionAsync()` | Now async |
| `AgentRunResponse` | `AgentResponse` | Return type rename |
| `AgentRunResponseUpdate` | `AgentResponseUpdate` | Streaming type
rename |
| `CreateAIAgent()` | `AsAIAgent()` | Extension method rename |
| `AssistantClient.CreateAIAgentAsync()` | **Removed** | Redirect to
Responses API |
| `PersistentAgentsClient` | **Obsolete** | Use `AIProjectClient` via
`Microsoft.Agents.AI.Foundry` |
| `Microsoft.Agents.AI.AzureAI` | `Microsoft.Agents.AI.Foundry` |
Package rename |
| `InProcessExecution.StreamAsync` | `RunStreamingAsync` | Workflow API
|
| `AgentRunUpdateEvent` | `AgentResponseUpdateEvent` | Workflow event |
| `AIAgent.Id` (virtual) | `IdCore` (protected virtual) | Override
pattern |

### Additional discoveries
- `using OpenAI.Chat;` required for `ChatClient.AsAIAgent()` extension
to resolve
- `using OpenAI.Responses;` required for `ResponsesClient.AsAIAgent()`
extension to resolve

### What changed

**Package versions** (`dotnet/Directory.Packages.props`)
- AF packages updated to `1.0.0`
- `Microsoft.Agents.AI.AzureAI` → `Microsoft.Agents.AI.Foundry`

**Bridge code** (`dotnet/src/Agents/Abstractions/AIAgent/`)
- `SemanticKernelAIAgent.cs`: New `Core` method overrides
(`CreateSessionCoreAsync`, `RunCoreAsync`, etc.)
- `SemanticKernelAIAgentThread` → `SemanticKernelAIAgentSession`
(extends `AgentSession`)

**31 migration samples** (all compile ✅)
- OpenAI/AzureOpenAI: `AsAIAgent`, `CreateSessionAsync`, `using
OpenAI.Chat;`
- Assistants (8): AF sections rewritten to Responses API
- Responses (8): Direct `ResponsesClient.AsAIAgent()`
- Foundry (4): `AIProjectClient.AsAIAgent()` via
`Microsoft.Agents.AI.Foundry`
- Orchestrations (3): `RunStreamingAsync`, `AgentResponseUpdateEvent`

**Migration document**
(`.github/upgrades/prompts/SemanticKernelToAgentFramework.md`)
- All AF preview API references updated to 1.0 GA patterns

**Unit/integration tests** (~15 files)
- Mechanical renames for `AgentSession`, `AgentResponse`,
`CreateSessionAsync`

### Validation

8 standalone console programs were created and executed against AF 1.0.0
NuGet packages with real API keys, validating all migration patterns
end-to-end:
1. OpenAI Basics (ChatClient → AsAIAgent, CreateSessionAsync,
Run/RunStreaming)
2. OpenAI ToolCall (AIFunctionFactory.Create, tool invocation)
3. OpenAI DI (ServiceProvider registration)
4. OpenAI Responses (ResponsesClient.AsAIAgent)
5. Azure AI Foundry (AIProjectClient.AsAIAgent)
6. Workflows Handoff (HandoffWorkflowBuilder,
InProcessExecution.RunStreamingAsync)
7. Session Lifecycle (Create, Serialize, Deserialize, multi-turn)
8. Assistants Migration Path (Responses API as replacement)

---------

Co-authored-by: Copilot <[email protected]>
2026-05-12 14:49:47 +00:00

110 lines
4.2 KiB
C#

// Copyright (c) Microsoft. All rights reserved.
using Azure.AI.OpenAI;
using Azure.Identity;
using Microsoft.Agents.AI;
using Microsoft.Agents.AI.Workflows;
using Microsoft.Extensions.AI;
using Microsoft.SemanticKernel;
using Microsoft.SemanticKernel.Agents;
using Microsoft.SemanticKernel.Agents.Orchestration;
using Microsoft.SemanticKernel.Agents.Orchestration.Concurrent;
using Microsoft.SemanticKernel.Agents.Runtime.InProcess;
var endpoint = Environment.GetEnvironmentVariable("AZURE_OPENAI_ENDPOINT") ?? throw new InvalidOperationException("AZURE_OPENAI_ENDPOINT is not set.");
var deploymentName = Environment.GetEnvironmentVariable("AZURE_OPENAI_DEPLOYMENT_NAME") ?? "gpt-4o-mini";
var agentInstructions = "You are a translation assistant who only responds in {0}. Respond to any input by outputting the name of the input language and then translating the input to {0}.";
// This sample compares running concurrent orchestrations using
// Semantic Kernel and the Agent Framework.
Console.WriteLine("=== Semantic Kernel Concurrent Orchestration ===");
await SKConcurrentOrchestration();
Console.WriteLine("\n=== Agent Framework Concurrent Agent Workflow ===");
await AFConcurrentAgentWorkflow();
# region SKConcurrentOrchestration
#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.
async Task SKConcurrentOrchestration()
{
ConcurrentOrchestration orchestration = new([
GetSKTranslationAgent("French"),
GetSKTranslationAgent("Spanish")])
{
StreamingResponseCallback = StreamingResultCallback,
};
InProcessRuntime runtime = new();
await runtime.StartAsync();
// Run the orchestration
OrchestrationResult<string[]> result = await orchestration.InvokeAsync("Hello, world!", runtime);
string[] texts = await result.GetValueAsync(TimeSpan.FromSeconds(20));
await runtime.RunUntilIdleAsync();
}
#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.
ChatCompletionAgent GetSKTranslationAgent(string targetLanguage)
{
var kernel = Kernel.CreateBuilder().AddAzureOpenAIChatCompletion(deploymentName, endpoint, new AzureCliCredential()).Build();
return new ChatCompletionAgent()
{
Kernel = kernel,
Instructions = string.Format(agentInstructions, targetLanguage),
Description = $"Agent that translates texts to {targetLanguage}",
Name = $"SKTranslationAgent_{targetLanguage}"
};
}
ValueTask StreamingResultCallback(StreamingChatMessageContent streamedResponse, bool isFinal)
{
Console.Write(streamedResponse.Content);
if (isFinal)
{
Console.WriteLine();
}
return ValueTask.CompletedTask;
}
# endregion
# region AFConcurrentAgentWorkflow
async Task AFConcurrentAgentWorkflow()
{
var client = new AzureOpenAIClient(new Uri(endpoint), new AzureCliCredential()).GetChatClient(deploymentName).AsIChatClient();
var frenchAgent = GetAFTranslationAgent("French", client);
var spanishAgent = GetAFTranslationAgent("Spanish", client);
var concurrentAgentWorkflow = AgentWorkflowBuilder.BuildConcurrent([frenchAgent, spanishAgent]);
await using StreamingRun run = await InProcessExecution.RunStreamingAsync(concurrentAgentWorkflow, "Hello, world!");
await run.TrySendMessageAsync(new TurnToken(emitEvents: true));
string? lastExecutorId = null;
await foreach (WorkflowEvent evt in run.WatchStreamAsync().ConfigureAwait(false))
{
if (evt is AgentResponseUpdateEvent e)
{
if (string.IsNullOrEmpty(e.Update.Text))
{
continue;
}
if (e.ExecutorId != lastExecutorId)
{
lastExecutorId = e.ExecutorId;
Console.WriteLine();
Console.Write($"{e.Update.AuthorName}: ");
}
Console.Write(e.Update.Text);
}
}
}
ChatClientAgent GetAFTranslationAgent(string targetLanguage, IChatClient chatClient) =>
new(chatClient, string.Format(agentInstructions, targetLanguage), name: $"AFTranslationAgent_{targetLanguage}");
# endregion