fix: fix both the sample agent and server's configuration

Signed-off-by: Charles d'Avernas <[email protected]>

Author: cdavernas

samples/semantic-kernel/a2a-net.Samples.SemanticKernel.Client/Program.cs

@@ -13,15 +13,13 @@
 
 using A2A.Events;
 using A2A.Samples.SemanticKernel.Client;
-
 using Microsoft.VisualStudio.Threading;
-
 using Spectre.Console.Extensions;
 using Spectre.Console.Json;
-
 using System.Net.Http.Headers;
 using System.Text;
 
+Console.OutputEncoding = Encoding.UTF8;
 var configuration = new ConfigurationBuilder()
     .AddCommandLine(args)
     .AddEnvironmentVariables()

samples/semantic-kernel/a2a-net.Samples.SemanticKernel.Server/Program.cs

@@ -34,7 +34,20 @@
         .WithProvider(provider => provider
             .WithOrganization("a2a-net")
             .WithUrl(new("https://github.com/neuroglia-io/a2a-net")))
-        .WithUrl(new("/a2a", UriKind.Relative));
+        .WithUrl(new("/a2a", UriKind.Relative)) 
+        .SupportsStreaming()
+        .WithSkill(skill => skill
+            .WithId("text-generation")
+            .WithName("Text Generation")
+            .WithDescription("Generate freeform or guided text."))
+        .WithSkill(skill => skill
+            .WithId("structured-text-generation")
+            .WithName("Structured Text Generation")
+            .WithDescription("Generate structured output conforming to a schema."))
+        .WithSkill(skill => skill
+            .WithId("general-question-answering")
+            .WithName("General Question Answering")
+            .WithDescription("Answers general knowledge and factual questions across a wide range of topics."));
     if (applicationOptions.Agent.Skills != null)
     {
         foreach (var skill in applicationOptions.Agent.Skills)
@@ -51,7 +64,8 @@
 {
     builder
         .UseAgentRuntime(provider => provider.GetRequiredService<IAgentRuntime>())
-        .UseDistributedCacheTaskRepository();
+        .UseDistributedCacheTaskRepository()
+        .SupportsStreaming();
 });
 var app = builder.Build();
 

src/a2a-net.Server/Infrastructure/Services/AgentCardBuilder.cs

@@ -23,7 +23,10 @@ public class AgentCardBuilder
     /// <summary>
     /// Gets the card to build and configure
     /// </summary>
-    protected AgentCard Card { get; } = new();
+    protected AgentCard Card { get; } = new()
+    {
+        Capabilities = new()
+    };
 
     /// <inheritdoc/>
     public virtual IAgentCardBuilder WithName(string name)