Merge branch 'main' into feat/durable_task

Author: kshyju

dotnet/Directory.Packages.props

@@ -33,14 +33,15 @@
     <!-- Newtonsoft.Json -->
     <PackageVersion Include="Newtonsoft.Json" Version="13.0.4" />
     <!-- System.* -->
-    <PackageVersion Include="Microsoft.Bcl.AsyncInterfaces" Version="10.0.3" />
+    <PackageVersion Include="Microsoft.Bcl.AsyncInterfaces" Version="10.0.4" />
     <PackageVersion Include="Microsoft.Bcl.HashCode" Version="6.0.0" />
+    <PackageVersion Include="Microsoft.Bcl.Memory" Version="10.0.4" />
     <PackageVersion Include="System.ClientModel" Version="1.9.0" />
     <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="10.0.3" />
-    <PackageVersion Include="System.Linq.AsyncEnumerable" Version="10.0.0" />
+    <PackageVersion Include="System.Linq.AsyncEnumerable" Version="10.0.4" />
     <PackageVersion Include="System.Net.Http.Json" Version="10.0.0" />
     <PackageVersion Include="System.Net.ServerSentEvents" Version="10.0.3" />
     <PackageVersion Include="System.Text.Json" Version="10.0.3" />
@@ -101,10 +102,10 @@
     <PackageVersion Include="Microsoft.Agents.Authentication.Msal" Version="1.3.171-beta" />
     <PackageVersion Include="Microsoft.Agents.Hosting.AspNetCore" Version="1.3.171-beta" />
     <!-- A2A -->
-    <PackageVersion Include="A2A" Version="0.3.3-preview" />
-    <PackageVersion Include="A2A.AspNetCore" Version="0.3.3-preview" />
+    <PackageVersion Include="A2A" Version="0.3.4-preview" />
+    <PackageVersion Include="A2A.AspNetCore" Version="0.3.4-preview" />
     <!-- MCP -->
-    <PackageVersion Include="ModelContextProtocol" Version="0.8.0-preview.1" />
+    <PackageVersion Include="ModelContextProtocol" Version="1.1.0" />
     <!-- Inference SDKs -->
     <PackageVersion Include="AWSSDK.Extensions.Bedrock.MEAI" Version="4.0.5.1" />
     <PackageVersion Include="Microsoft.ML.OnnxRuntimeGenAI" Version="0.10.0" />

dotnet/src/Microsoft.Agents.AI.A2A/Extensions/A2AMetadataExtensions.cs

@@ -100,15 +100,23 @@ public static ChatClientAgent AsAIAgent(
     /// This corresponds to setting the "store" property in the JSON representation to false.
     /// </remarks>
     /// <param name="responseClient">The client.</param>
+    /// <param name="includeReasoningEncryptedContent">
+    /// Includes an encrypted version of reasoning tokens in reasoning item outputs.
+    /// This enables reasoning items to be used in multi-turn conversations when using the Responses API statelessly
+    /// (like when the store parameter is set to false, or when an organization is enrolled in the zero data retention program).
+    /// Defaults to <see langword="true"/>.
+    /// </param>
     /// <returns>An <see cref="IChatClient"/> that can be used to converse via the <see cref="ResponsesClient"/> that does not store responses for later retrieval.</returns>
     /// <exception cref="ArgumentNullException"><paramref name="responseClient"/> is <see langword="null"/>.</exception>
     [Experimental(DiagnosticIds.Experiments.AgentsAIExperiments)]
-    public static IChatClient AsIChatClientWithStoredOutputDisabled(this ResponsesClient responseClient)
+    public static IChatClient AsIChatClientWithStoredOutputDisabled(this ResponsesClient responseClient, bool includeReasoningEncryptedContent = true)
     {
         return Throw.IfNull(responseClient)
             .AsIChatClient()
             .AsBuilder()
-            .ConfigureOptions(x => x.RawRepresentationFactory = _ => new CreateResponseOptions() { StoredOutputEnabled = false })
+            .ConfigureOptions(x => x.RawRepresentationFactory = _ => includeReasoningEncryptedContent
+                ? new CreateResponseOptions() { StoredOutputEnabled = false, IncludedProperties = { IncludedResponseProperty.ReasoningEncryptedContent } }
+                : new CreateResponseOptions() { StoredOutputEnabled = false })
             .Build();
     }
 }

dotnet/src/Microsoft.Agents.AI.A2A/Extensions/AdditionalPropertiesDictionaryExtensions.cs

@@ -5,6 +5,7 @@
 using System.Globalization;
 using System.Linq;
 using System.Net.Http;
+using System.Text;
 using System.Threading;
 using System.Threading.Tasks;
 using Microsoft.Extensions.AI;
@@ -222,31 +223,36 @@ private static void PopulateResultContent(McpServerToolResultContent resultConte
         }
     }
 
-    private static AIContent ConvertContentBlock(ContentBlock block)
+    internal static AIContent ConvertContentBlock(ContentBlock block)
     {
         return block switch
         {
             TextContentBlock text => new TextContent(text.Text),
-            ImageContentBlock image => CreateDataContentFromBase64(image.Data, image.MimeType ?? "image/*"),
-            AudioContentBlock audio => CreateDataContentFromBase64(audio.Data, audio.MimeType ?? "audio/*"),
+            ImageContentBlock image => CreateDataContent(image.Data, image.MimeType ?? "image/*"),
+            AudioContentBlock audio => CreateDataContent(audio.Data, audio.MimeType ?? "audio/*"),
             _ => new TextContent(block.ToString() ?? string.Empty),
         };
     }
 
-    private static DataContent CreateDataContentFromBase64(string? base64Data, string mediaType)
+    private static DataContent CreateDataContent(ReadOnlyMemory<byte> base64Utf8Data, string mediaType)
     {
-        if (string.IsNullOrEmpty(base64Data))
+        if (base64Utf8Data.IsEmpty)
         {
             return new DataContent($"data:{mediaType};base64,", mediaType);
         }
 
+#if NET8_0_OR_GREATER
+        string base64 = Encoding.UTF8.GetString(base64Utf8Data.Span);
+#else
+        string base64 = Encoding.UTF8.GetString(base64Utf8Data.ToArray());
+#endif
+
         // If it's already a data URI, use it directly
-        if (base64Data.StartsWith("data:", StringComparison.OrdinalIgnoreCase))
+        if (base64.StartsWith("data:", StringComparison.OrdinalIgnoreCase))
         {
-            return new DataContent(base64Data, mediaType);
+            return new DataContent(base64, mediaType);
         }
 
-        // Otherwise, construct a data URI from the base64 data
-        return new DataContent($"data:{mediaType};base64,{base64Data}", mediaType);
+        return new DataContent($"data:{mediaType};base64,{base64}", mediaType);
     }
 }

dotnet/src/Microsoft.Agents.AI.Hosting.A2A/Converters/A2AMetadataExtensions.cs

@@ -72,6 +72,9 @@ public async IAsyncEnumerable<WorkflowEvent> TakeEventStreamAsync(bool blockOnPe
             this.RunStatus = RunStatus.Running;
             runActivity?.AddEvent(new ActivityEvent(EventNames.WorkflowStarted));
 
+            // Emit WorkflowStartedEvent to the event stream for consumers
+            eventSink.Enqueue(new WorkflowStartedEvent());
+
             do
             {
                 while (this._stepRunner.HasUnprocessedMessages &&

dotnet/src/Microsoft.Agents.AI.Hosting.A2A/Converters/AdditionalPropertiesDictionaryExtensions.cs

@@ -88,9 +88,16 @@ private async Task RunLoopAsync(CancellationToken cancellationToken)
 
                 // Run all available supersteps continuously
                 // Events are streamed out in real-time as they happen via the event handler
-                while (this._stepRunner.HasUnprocessedMessages && !linkedSource.Token.IsCancellationRequested)
+                if (this._stepRunner.HasUnprocessedMessages)
                 {
-                    await this._stepRunner.RunSuperStepAsync(linkedSource.Token).ConfigureAwait(false);
+                    // Emit WorkflowStartedEvent only when there's actual work to process
+                    // This avoids spurious events on timeout-only loop iterations
+                    await this._eventChannel.Writer.WriteAsync(new WorkflowStartedEvent(), linkedSource.Token).ConfigureAwait(false);
+
+                    while (this._stepRunner.HasUnprocessedMessages && !linkedSource.Token.IsCancellationRequested)
+                    {
+                        await this._stepRunner.RunSuperStepAsync(linkedSource.Token).ConfigureAwait(false);
+                    }
                 }
 
                 // Update status based on what's waiting

dotnet/src/Microsoft.Agents.AI.OpenAI/Extensions/OpenAIResponseClientExtensions.cs

@@ -161,7 +161,10 @@ protected override async ValueTask<bool> CompactCoreAsync(CompactionMessageIndex
 
         // Generate summary using the chat client (single LLM call for all marked groups)
         int summarized = excludedGroups.Count;
-        logger.LogSummarizationStarting(summarized, summarizationMessages.Count - 1, this.ChatClient.GetType().Name);
+        if (logger.IsEnabled(LogLevel.Debug))
+        {
+            logger.LogSummarizationStarting(summarized, summarizationMessages.Count - 1, this.ChatClient.GetType().Name);
+        }
 
         using Activity? summarizeActivity = CompactionTelemetry.ActivitySource.StartActivity(CompactionTelemetry.ActivityNames.Summarize);
         summarizeActivity?.SetTag(CompactionTelemetry.Tags.GroupsSummarized, summarized);