Decouple .NET connector from Semantic Kernel

examples/dotnet/dotnet-03-simple-chatbot/ConnectorExtensions.cs

@@ -0,0 +1,78 @@
+// Copyright (c) Microsoft. All rights reserved.
+
+using System.Text;
+using Microsoft.SemanticKernel.ChatCompletion;
+using Microsoft.SemanticWorkbench.Connector;
+
+namespace AgentExample;
+
+public static class ConnectorExtensions
+{
+    // TODO: the list of participants is incomplete, because agents see only participants being added
+    public static string GetParticipantName(this Conversation conversation, string id)
+    {
+        if (conversation.Participants.TryGetValue(id, out Participant? participant))
+        {
+            return participant.Name;
+        }
+
+        return "Unknown";
+    }
+
+    public static ChatHistory ToSemanticKernelChatHistory(
+        this Conversation conversation,
+        string assistantId,
+        string systemPrompt)
+    {
+        var result = new ChatHistory(systemPrompt);
+
+        foreach (Message msg in conversation.Messages)
+        {
+            if (msg.Sender.Id == assistantId)
+            {
+                result.AddAssistantMessage(msg.Content!);
+            }
+            else
+            {
+                result.AddUserMessage(
+                    $"[{conversation.GetParticipantName(msg.Sender.Id)}] {msg.Content}");
+            }
+        }
+
+        return result;
+    }
+
+    public static string ToHtmlString(
+        this Conversation conversation,
+        string assistantId)
+    {
+        var result = new StringBuilder();
+        result.AppendLine("<style>");
+        result.AppendLine("DIV.conversationHistory { padding: 0 20px 60px 20px; }");
+        result.AppendLine("DIV.conversationHistory P { margin: 0 0 8px 0; }");
+        result.AppendLine("</style>");
+        result.AppendLine("<div class='conversationHistory'>");
+
+        foreach (var msg in conversation.Messages)
+        {
+            result.AppendLine("<p>");
+            if (msg.Sender.Id == assistantId)
+            {
+                result.AppendLine("<b>Assistant</b><br/>");
+            }
+            else
+            {
+                result
+                    .Append("<b>")
+                    .Append(conversation.GetParticipantName(msg.Sender.Id))
+                    .AppendLine("</b><br/>");
+            }
+
+            result.AppendLine(msg.Content).AppendLine("</p>");
+        }
+
+        result.Append("</div>");
+
+        return result.ToString();
+    }
+}

examples/dotnet/dotnet-03-simple-chatbot/MyAgent.cs

@@ -171,7 +171,7 @@ private async Task<Message> PrepareAnswerAsync(Conversation conversation, Messag
 
             if (inputIsSafe)
             {
-                var chatHistory = conversation.ToChatHistory(this.Id, this.Config.RenderSystemPrompt());
+                var chatHistory = conversation.ToSemanticKernelChatHistory(this.Id, this.Config.RenderSystemPrompt());
                 debugInfo.Add("lastChatMsg", chatHistory.Last().Content);
 
                 // Show chat history in workbench side panel

examples/dotnet/dotnet-03-simple-chatbot/MyAgentConfig.cs

@@ -5,7 +5,7 @@
 
 namespace AgentExample;
 
-public class MyAgentConfig : AgentConfig
+public class MyAgentConfig : AgentConfigBase
 {
     // Define safety and behavioral guardrails.
     // See https://learn.microsoft.com/azure/ai-services/openai/concepts/system-message for more information and examples.

libraries/dotnet/WorkbenchConnector/AgentBase.cs

@@ -10,7 +10,7 @@
 namespace Microsoft.SemanticWorkbench.Connector;
 
 public abstract class AgentBase<TAgentConfig> : IAgentBase
-    where TAgentConfig : IAgentConfig, new()
+    where TAgentConfig : AgentConfigBase, new()
 {
     // Agent instance ID
     public string Id { get; protected set; } = string.Empty;

libraries/dotnet/WorkbenchConnector/AgentConfig/AgentConfig.cs → libraries/dotnet/WorkbenchConnector/AgentConfig/AgentConfigBase.cs

@@ -1,19 +1,14 @@
 // Copyright (c) Microsoft. All rights reserved.
 
-using System;
 using System.Collections.Generic;
 using System.Reflection;
 
 // ReSharper disable once CheckNamespace
 namespace Microsoft.SemanticWorkbench.Connector;
 
-public class AgentConfig : IAgentConfig
+public abstract class AgentConfigBase
 {
-    public AgentConfig()
-    {
-    }
-
-    public object? ToWorkbenchFormat()
+    public object ToWorkbenchFormat()
     {
         Dictionary<string, object> result = new();
         Dictionary<string, object> defs = new();
@@ -60,22 +55,4 @@ public AgentConfig()
 
         return result;
     }
-
-    public void Update(object? config)
-    {
-        if (config == null)
-        {
-            throw new ArgumentException("Empty configuration");
-        }
-
-        if (config is not AgentConfig cfg)
-        {
-            throw new ArgumentException("Incompatible configuration type");
-        }
-
-        foreach (var property in this.GetType().GetProperties())
-        {
-            property.SetValue(this, property.GetValue(cfg));
-        }
-    }
 }

libraries/dotnet/WorkbenchConnector/Models/Conversation.cs

@@ -2,9 +2,7 @@
 
 using System.Collections.Generic;
 using System.Linq;
-using System.Text;
 using System.Text.Json.Serialization;
-using Microsoft.SemanticKernel.ChatCompletion;
 
 // ReSharper disable once CheckNamespace
 namespace Microsoft.SemanticWorkbench.Connector;
@@ -60,66 +58,4 @@ public void RemoveMessage(Message? msg)
 
         this.Messages = this.Messages.Where(x => x.Id != msg.Id).ToList();
     }
-
-    public ChatHistory ToChatHistory(string assistantId, string systemPrompt)
-    {
-        var result = new ChatHistory(systemPrompt);
-
-        foreach (Message msg in this.Messages)
-        {
-            if (msg.Sender.Id == assistantId)
-            {
-                result.AddAssistantMessage(msg.Content!);
-            }
-            else
-            {
-                result.AddUserMessage($"[{this.GetParticipantName(msg.Sender.Id)}] {msg.Content}");
-            }
-        }
-
-        return result;
-    }
-
-    public string ToHtmlString(string assistantId)
-    {
-        var result = new StringBuilder();
-        result.AppendLine("<style>");
-        result.AppendLine("DIV.conversationHistory { padding: 0 20px 60px 20px; }");
-        result.AppendLine("DIV.conversationHistory P { margin: 0 0 8px 0; }");
-        result.AppendLine("</style>");
-        result.AppendLine("<div class='conversationHistory'>");
-
-        foreach (var msg in this.Messages)
-        {
-            result.AppendLine("<p>");
-            if (msg.Sender.Id == assistantId)
-            {
-                result.AppendLine("<b>Assistant</b><br/>");
-            }
-            else
-            {
-                result
-                    .Append("<b>")
-                    .Append(this.GetParticipantName(msg.Sender.Id))
-                    .AppendLine("</b><br/>");
-            }
-
-            result.AppendLine(msg.Content).AppendLine("</p>");
-        }
-
-        result.Append("</div>");
-
-        return result.ToString();
-    }
-
-    // TODO: the list of participants is incomplete, because agents see only participants being added
-    private string GetParticipantName(string id)
-    {
-        if (this.Participants.TryGetValue(id, out Participant? participant))
-        {
-            return participant.Name;
-        }
-
-        return "Unknown";
-    }
 }

libraries/dotnet/WorkbenchConnector/Models/ServiceInfo.cs

@@ -7,10 +7,8 @@
 namespace Microsoft.SemanticWorkbench.Connector;
 
 public class ServiceInfo<TAgentConfig>(TAgentConfig cfg)
-    where TAgentConfig : IAgentConfig, new()
+    where TAgentConfig : AgentConfigBase, new()
 {
-    private readonly TAgentConfig _cfg = cfg;
-
     [JsonPropertyName("assistant_service_id")]
     public string ServiceId { get; set; } = string.Empty;
 
@@ -24,5 +22,5 @@ public class ServiceInfo<TAgentConfig>(TAgentConfig cfg)
     public Dictionary<string, object> Metadata { get; set; } = new();
 
     [JsonPropertyName("default_config")]
-    public object DefaultConfiguration => this._cfg.ToWorkbenchFormat() ?? new();
+    public object DefaultConfiguration => cfg.ToWorkbenchFormat() ?? new();
 }

libraries/dotnet/WorkbenchConnector/Webservice.cs

@@ -27,7 +27,7 @@ private sealed class SemanticWorkbenchWebservice
 
     public static WorkbenchConnector<TAgentConfig> UseAgentWebservice<TAgentConfig>(
         this IEndpointRouteBuilder builder, string endpoint, bool enableCatchAll = false)
-        where TAgentConfig : IAgentConfig, new()
+        where TAgentConfig : AgentConfigBase, new()
     {
         WorkbenchConnector<TAgentConfig>? workbenchConnector = builder.ServiceProvider.GetService<WorkbenchConnector<TAgentConfig>>();
         if (workbenchConnector == null)
@@ -60,7 +60,7 @@ public static WorkbenchConnector<TAgentConfig> UseAgentWebservice<TAgentConfig>(
     // Return service details and default agent configuration
     public static IEndpointRouteBuilder UseFetchServiceInfo<TAgentConfig>(
         this IEndpointRouteBuilder builder, string prefix)
-        where TAgentConfig : IAgentConfig, new()
+        where TAgentConfig : AgentConfigBase, new()
     {
         builder.MapGet(prefix + "/", (
             [FromServicesAttribute] WorkbenchConnector<TAgentConfig> workbenchConnector,
@@ -76,7 +76,7 @@ public static IEndpointRouteBuilder UseFetchServiceInfo<TAgentConfig>(
     // Create new agent instance
     public static IEndpointRouteBuilder UseCreateAgentEndpoint<TAgentConfig>(
         this IEndpointRouteBuilder builder, string prefix)
-        where TAgentConfig : IAgentConfig, new()
+        where TAgentConfig : AgentConfigBase, new()
     {
         builder.MapPut(prefix + "/{agentId}",
                 async (
@@ -110,7 +110,7 @@ await workbenchConnector.CreateAgentAsync(agentId, name, null, cancellationToken
     // Delete agent instance
     public static IEndpointRouteBuilder UseDeleteAgentEndpoint<TAgentConfig>(
         this IEndpointRouteBuilder builder, string prefix)
-        where TAgentConfig : IAgentConfig, new()
+        where TAgentConfig : AgentConfigBase, new()
     {
         builder.MapDelete(prefix + "/{agentId}",
             async (
@@ -130,7 +130,7 @@ public static IEndpointRouteBuilder UseDeleteAgentEndpoint<TAgentConfig>(
     // Fetch agent configuration
     public static IEndpointRouteBuilder UseFetchAgentConfigEndpoint<TAgentConfig>(
         this IEndpointRouteBuilder builder, string prefix)
-        where TAgentConfig : IAgentConfig, new()
+        where TAgentConfig : AgentConfigBase, new()
     {
         builder.MapGet(prefix + "/{agentId}/config",
             (
@@ -155,7 +155,7 @@ public static IEndpointRouteBuilder UseFetchAgentConfigEndpoint<TAgentConfig>(
     // Save agent configuration
     public static IEndpointRouteBuilder UseSaveAgentConfigEndpoint<TAgentConfig>(
         this IEndpointRouteBuilder builder, string prefix)
-        where TAgentConfig : IAgentConfig, new()
+        where TAgentConfig : AgentConfigBase, new()
     {
         builder.MapPut(prefix + "/{agentId}/config",
                 async (
@@ -171,7 +171,7 @@ public static IEndpointRouteBuilder UseSaveAgentConfigEndpoint<TAgentConfig>(
                     if (agent == null) { return Results.NotFound("Agent Not Found"); }
 
                     var config = agent.ParseConfig(data["config"]);
-                    IAgentConfig newConfig =
+                    AgentConfigBase newConfig =
                         await agent.UpdateAgentConfigAsync(config, cancellationToken).ConfigureAwait(false);
 
                     var tmp = workbenchConnector.GetAgent(agentId);
@@ -186,7 +186,7 @@ public static IEndpointRouteBuilder UseSaveAgentConfigEndpoint<TAgentConfig>(
     // Create new conversation
     private static IEndpointRouteBuilder UseCreateConversationEndpoint<TAgentConfig>(
         this IEndpointRouteBuilder builder, string prefix)
-        where TAgentConfig : IAgentConfig, new()
+        where TAgentConfig : AgentConfigBase, new()
     {
         builder.MapPut(prefix + "/{agentId}/conversations/{conversationId}",
                 async (
@@ -214,7 +214,7 @@ private static IEndpointRouteBuilder UseCreateConversationEndpoint<TAgentConfig>
     // Fetch conversation states
     public static IEndpointRouteBuilder UseFetchConversationStatesEndpoint<TAgentConfig>(
         this IEndpointRouteBuilder builder, string prefix)
-        where TAgentConfig : IAgentConfig, new()
+        where TAgentConfig : AgentConfigBase, new()
     {
         builder.MapGet(prefix + "/{agentId}/conversations/{conversationId}/states",
             async (
@@ -285,7 +285,7 @@ end of content
     // Fetch conversation states
     public static IEndpointRouteBuilder UseFetchConversationInsightEndpoint<TAgentConfig>(
         this IEndpointRouteBuilder builder, string prefix)
-        where TAgentConfig : IAgentConfig, new()
+        where TAgentConfig : AgentConfigBase, new()
     {
         builder.MapGet(prefix + "/{agentId}/conversations/{conversationId}/states/{insightId}",
             async (
@@ -348,7 +348,7 @@ public static IEndpointRouteBuilder UseFetchConversationInsightEndpoint<TAgentCo
     // New conversation event
     private static IEndpointRouteBuilder UseCreateConversationEventEndpoint<TAgentConfig>(
         this IEndpointRouteBuilder builder, string prefix)
-        where TAgentConfig : IAgentConfig, new()
+        where TAgentConfig : AgentConfigBase, new()
     {
         builder.MapPost(prefix + "/{agentId}/conversations/{conversationId}/events",
                 async (
@@ -539,7 +539,7 @@ private static IEndpointRouteBuilder UseCreateConversationEventEndpoint<TAgentCo
     // Delete conversation
     public static IEndpointRouteBuilder UseDeleteConversationEndpoint<TAgentConfig>(
         this IEndpointRouteBuilder builder, string prefix)
-        where TAgentConfig : IAgentConfig, new()
+        where TAgentConfig : AgentConfigBase, new()
     {
         builder.MapDelete(prefix + "/{agentId}/conversations/{conversationId}",
             async (

libraries/dotnet/WorkbenchConnector/WorkbenchConnector.cs

@@ -13,7 +13,7 @@
 namespace Microsoft.SemanticWorkbench.Connector;
 
 public abstract class WorkbenchConnector<TAgentConfig> : IDisposable
-    where TAgentConfig : IAgentConfig, new()
+    where TAgentConfig : AgentConfigBase, new()
 {
     protected IAgentServiceStorage Storage { get; private set; }
     protected WorkbenchConfig WorkbenchConfig { get; private set; }