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Merged
stephentoub merged 2 commits into from
Feb 11, 2026
Merged

.NET: Update to M.E.AI 10.3.0 #3822

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4661696
Update to M.E.AI 10.3.0
stephentoub Feb 10, 2026
3ebd4ee
Merge branch 'main' into updatemeai1030
rogerbarreto Feb 11, 2026
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18 changes: 9 additions & 9 deletions dotnet/Directory.Packages.props
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Original file line number Diff line number Diff line change
Expand Up @@ -33,18 +33,18 @@
<!-- Newtonsoft.Json -->
<PackageVersion Include="Newtonsoft.Json" Version="13.0.4" />
<!-- System.* -->
<PackageVersion Include="Microsoft.Bcl.AsyncInterfaces" Version="10.0.2" />
<PackageVersion Include="Microsoft.Bcl.AsyncInterfaces" Version="10.0.3" />
<PackageVersion Include="Microsoft.Bcl.HashCode" Version="6.0.0" />
<PackageVersion Include="System.ClientModel" Version="1.8.1" />
<PackageVersion Include="System.CodeDom" Version="10.0.0" />
<PackageVersion Include="System.Collections.Immutable" Version="10.0.1" />
<PackageVersion Include="System.CommandLine" Version="2.0.0-rc.2.25502.107" />
<PackageVersion Include="System.Diagnostics.DiagnosticSource" Version="10.0.2" />
<PackageVersion Include="System.Diagnostics.DiagnosticSource" Version="10.0.3" />
<PackageVersion Include="System.Linq.AsyncEnumerable" Version="10.0.0" />
<PackageVersion Include="System.Net.Http.Json" Version="10.0.0" />
<PackageVersion Include="System.Net.ServerSentEvents" Version="10.0.1" />
<PackageVersion Include="System.Text.Json" Version="10.0.2" />
<PackageVersion Include="System.Threading.Channels" Version="10.0.2" />
<PackageVersion Include="System.Text.Json" Version="10.0.3" />
<PackageVersion Include="System.Threading.Channels" Version="10.0.3" />
<PackageVersion Include="System.Threading.Tasks.Extensions" Version="4.6.3" />
<PackageVersion Include="System.Net.Security" Version="4.3.2" />
<!-- OpenTelemetry -->
Expand All @@ -61,21 +61,21 @@
<PackageVersion Include="Microsoft.AspNetCore.OpenApi" Version="10.0.0" />
<PackageVersion Include="Swashbuckle.AspNetCore.SwaggerUI" Version="10.0.0" />
<!-- Microsoft.Extensions.* -->
<PackageVersion Include="Microsoft.Extensions.AI" Version="10.2.0" />
<PackageVersion Include="Microsoft.Extensions.AI.Abstractions" Version="10.2.0" />
<PackageVersion Include="Microsoft.Extensions.AI.OpenAI" Version="10.2.0-preview.1.26063.2" />
<PackageVersion Include="Microsoft.Extensions.AI" Version="10.3.0" />
<PackageVersion Include="Microsoft.Extensions.AI.Abstractions" Version="10.3.0" />
<PackageVersion Include="Microsoft.Extensions.AI.OpenAI" Version="10.3.0" />
<PackageVersion Include="Microsoft.Extensions.Caching.Memory" Version="10.0.0" />
<PackageVersion Include="Microsoft.Extensions.Configuration" Version="10.0.0" />
<PackageVersion Include="Microsoft.Extensions.Configuration.Binder" Version="10.0.0" />
<PackageVersion Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="10.0.0" />
<PackageVersion Include="Microsoft.Extensions.Configuration.Json" Version="10.0.0" />
<PackageVersion Include="Microsoft.Extensions.Configuration.UserSecrets" Version="10.0.0" />
<PackageVersion Include="Microsoft.Extensions.DependencyInjection" Version="10.0.0" />
<PackageVersion Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="10.0.2" />
<PackageVersion Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="10.0.3" />
<PackageVersion Include="Microsoft.Extensions.Hosting" Version="10.0.0" />
<PackageVersion Include="Microsoft.Extensions.Http.Resilience" Version="10.0.0" />
<PackageVersion Include="Microsoft.Extensions.Logging" Version="10.0.0" />
<PackageVersion Include="Microsoft.Extensions.Logging.Abstractions" Version="10.0.2" />
<PackageVersion Include="Microsoft.Extensions.Logging.Abstractions" Version="10.0.3" />
<PackageVersion Include="Microsoft.Extensions.Logging.Console" Version="10.0.0" />
<PackageVersion Include="Microsoft.Extensions.ServiceDiscovery" Version="10.0.0" />
<PackageVersion Include="Microsoft.Extensions.VectorData.Abstractions" Version="9.7.0" />
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11 changes: 3 additions & 8 deletions dotnet/samples/GettingStarted/AgentWithOpenAI/Agent_OpenAI_Step02_Reasoning/Program.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,6 @@
using Microsoft.Agents.AI;
using Microsoft.Extensions.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-5";
Expand All @@ -15,14 +14,10 @@
.AsIChatClient().AsBuilder()
.ConfigureOptions(o =>
{
o.RawRepresentationFactory = _ => new CreateResponseOptions()
o.Reasoning = new()
{
ReasoningOptions = new()
{
ReasoningEffortLevel = ResponseReasoningEffortLevel.Medium,
// Verbosity requires OpenAI verified Organization
ReasoningSummaryVerbosity = ResponseReasoningSummaryVerbosity.Detailed
}
Effort = ReasoningEffort.Medium,
Output = ReasoningOutput.Full,
};
}).Build();

Expand Down
2 changes: 1 addition & 1 deletion dotnet/samples/GettingStarted/FoundryAgents/FoundryAgents_Step10_UsingImages/Program.cs
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Expand Up @@ -21,7 +21,7 @@

ChatMessage message = new(ChatRole.User, [
new TextContent("What do you see in this image?"),
new DataContent(File.ReadAllBytes("assets/walkway.jpg"), "image/jpeg")
await DataContent.LoadFromAsync("assets/walkway.jpg"),
]);

AgentSession session = await agent.CreateSessionAsync();
Expand Down
39 changes: 37 additions & 2 deletions dotnet/src/Microsoft.Agents.AI.AzureAI/AzureAIProjectChatClientExtensions.cs
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Expand Up @@ -283,8 +283,13 @@ public static async Task<ChatClientAgent> CreateAIAgentAsync(
TextOptions = new() { TextFormat = ToOpenAIResponseTextFormat(options.ChatOptions?.ResponseFormat, options.ChatOptions) }
};

// Attempt to capture breaking glass options from the raw representation factory that match the agent definition.
if (options.ChatOptions?.RawRepresentationFactory?.Invoke(new NoOpChatClient()) is CreateResponseOptions respCreationOptions)
// Map reasoning options from the abstraction-level ChatOptions.Reasoning,
// falling back to extracting from the raw representation factory for breaking glass scenarios.
if (options.ChatOptions?.Reasoning is { } reasoning)
{
agentDefinition.ReasoningOptions = ToResponseReasoningOptions(reasoning);
}
else if (options.ChatOptions?.RawRepresentationFactory?.Invoke(new NoOpChatClient()) is CreateResponseOptions respCreationOptions)
{
agentDefinition.ReasoningOptions = respCreationOptions.ReasoningOptions;
}
Expand Down Expand Up @@ -770,6 +775,36 @@ private static string ThrowIfInvalidAgentName(string? name)
}
return name;
}

private static ResponseReasoningOptions? ToResponseReasoningOptions(ReasoningOptions reasoning)
{
ResponseReasoningEffortLevel? effortLevel = reasoning.Effort switch
{
ReasoningEffort.Low => ResponseReasoningEffortLevel.Low,
ReasoningEffort.Medium => ResponseReasoningEffortLevel.Medium,
ReasoningEffort.High => ResponseReasoningEffortLevel.High,
ReasoningEffort.ExtraHigh => ResponseReasoningEffortLevel.High,
_ => null,
};

ResponseReasoningSummaryVerbosity? summary = reasoning.Output switch
{
ReasoningOutput.Summary => ResponseReasoningSummaryVerbosity.Concise,
ReasoningOutput.Full => ResponseReasoningSummaryVerbosity.Detailed,
_ => null,
};

if (effortLevel is null && summary is null)
{
return null;
}

return new ResponseReasoningOptions
{
ReasoningEffortLevel = effortLevel,
ReasoningSummaryVerbosity = summary,
};
}
}

[JsonSerializable(typeof(JsonElement))]
Expand Down
52 changes: 13 additions & 39 deletions dotnet/src/Microsoft.Agents.AI.GitHub.Copilot/GitHubCopilotAgent.cs
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Expand Up @@ -217,16 +217,15 @@ protected override async IAsyncEnumerable<AgentResponseUpdate> RunCoreStreamingA
}
});

List<string> tempFiles = [];
string? tempDir = null;
try
{
// Build prompt from text content
string prompt = string.Join("\n", messages.Select(m => m.Text));

// Handle DataContent as attachments
List<UserMessageDataAttachmentsItem>? attachments = await ProcessDataContentAttachmentsAsync(
(List<UserMessageDataAttachmentsItem>? attachments, tempDir) = await ProcessDataContentAttachmentsAsync(
messages,
tempFiles,
cancellationToken).ConfigureAwait(false);

// Send the message with attachments
Expand All @@ -245,7 +244,7 @@ protected override async IAsyncEnumerable<AgentResponseUpdate> RunCoreStreamingA
}
finally
{
CleanupTempFiles(tempFiles);
CleanupTempDir(tempDir);
}
}
finally
Expand Down Expand Up @@ -410,45 +409,23 @@ private AgentResponseUpdate ConvertToAgentResponseUpdate(SessionEvent sessionEve
return new SessionConfig { Tools = mappedTools, SystemMessage = systemMessage };
}

private static readonly Dictionary<string, string> s_mediaTypeExtensions = new(StringComparer.OrdinalIgnoreCase)
{
["image/png"] = ".png",
["image/jpeg"] = ".jpg",
["image/jpg"] = ".jpg",
["image/gif"] = ".gif",
["image/webp"] = ".webp",
["image/svg+xml"] = ".svg",
["text/plain"] = ".txt",
["text/html"] = ".html",
["text/markdown"] = ".md",
["application/json"] = ".json",
["application/xml"] = ".xml",
["application/pdf"] = ".pdf"
};

private static string GetExtensionForMediaType(string? mediaType)
{
return mediaType is not null && s_mediaTypeExtensions.TryGetValue(mediaType, out string? extension) ? extension : ".dat";
}

private static async Task<List<UserMessageDataAttachmentsItem>?> ProcessDataContentAttachmentsAsync(
private static async Task<(List<UserMessageDataAttachmentsItem>? Attachments, string? TempDir)> ProcessDataContentAttachmentsAsync(
IEnumerable<ChatMessage> messages,
List<string> tempFiles,
CancellationToken cancellationToken)
{
List<UserMessageDataAttachmentsItem>? attachments = null;
string? tempDir = null;
foreach (ChatMessage message in messages)
{
foreach (AIContent content in message.Contents)
{
if (content is DataContent dataContent)
{
// Write DataContent to a temp file
string tempFilePath = Path.Combine(Path.GetTempPath(), $"agentframework_copilot_data_{Guid.NewGuid()}{GetExtensionForMediaType(dataContent.MediaType)}");
await File.WriteAllBytesAsync(tempFilePath, dataContent.Data.ToArray(), cancellationToken).ConfigureAwait(false);
tempFiles.Add(tempFilePath);
tempDir ??= Directory.CreateDirectory(
Path.Combine(Path.GetTempPath(), $"af_copilot_{Guid.NewGuid():N}")).FullName;

string tempFilePath = await dataContent.SaveToAsync(tempDir, cancellationToken).ConfigureAwait(false);

// Create attachment
attachments ??= [];
attachments.Add(new UserMessageDataAttachmentsItem
{
Expand All @@ -460,19 +437,16 @@ private static string GetExtensionForMediaType(string? mediaType)
}
}

return attachments;
return (attachments, tempDir);
}

private static void CleanupTempFiles(List<string> tempFiles)
private static void CleanupTempDir(string? tempDir)
{
foreach (string tempFile in tempFiles)
if (tempDir is not null)
{
try
{
if (File.Exists(tempFile))
{
File.Delete(tempFile);
}
Directory.Delete(tempDir, recursive: true);
}
catch
{
Expand Down
2 changes: 1 addition & 1 deletion dotnet/src/Shared/Workflows/Execution/WorkflowRunner.cs
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Expand Up @@ -304,7 +304,7 @@ private async IAsyncEnumerable<ChatMessage> ProcessInputMessageAsync(ChatMessage
ChatMessage? responseMessage =
requestItem switch
{
FunctionCallContent functionCall => await InvokeFunctionAsync(functionCall).ConfigureAwait(false),
FunctionCallContent functionCall when !functionCall.InformationalOnly => await InvokeFunctionAsync(functionCall).ConfigureAwait(false),
FunctionApprovalRequestContent functionApprovalRequest => ApproveFunction(functionApprovalRequest),
McpServerToolApprovalRequestContent mcpApprovalRequest => ApproveMCP(mcpApprovalRequest),
_ => HandleUnknown(requestItem),
Expand Down
11 changes: 9 additions & 2 deletions dotnet/tests/Microsoft.Agents.AI.UnitTests/FunctionInvocationDelegatingAgentTests.cs
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Expand Up @@ -524,8 +524,15 @@ public async Task RunAsync_MiddlewareThrowsPreInvocation_ExceptionSurfacesAsync(
{
// Arrange
var testFunction = AIFunctionFactory.Create(() => "Function result", "TestFunction", "A test function");
var functionCall = new FunctionCallContent("call_123", "TestFunction", new Dictionary<string, object?>());
var mockChatClient = CreateMockChatClientWithFunctionCalls(functionCall);
var mockChatClient = new Mock<IChatClient>();

mockChatClient.Setup(c => c.GetResponseAsync(
It.IsAny<IEnumerable<ChatMessage>>(),
It.IsAny<ChatOptions>(),
It.IsAny<CancellationToken>()))
.ReturnsAsync(() => new ChatResponse([
new ChatMessage(ChatRole.Assistant, [new FunctionCallContent("call_123", "TestFunction", new Dictionary<string, object?>())])
]));

var innerAgent = new ChatClientAgent(mockChatClient.Object);
var messages = new List<ChatMessage> { new(ChatRole.User, "Test message") };
Expand Down
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