fix: minor fixes related to tool-calling

Author: srebrek

Examples/Examples/Chat/ChatExampleToolsSimple.cs

@@ -10,11 +10,9 @@ public class ChatExampleToolsSimple : IExample
     public async Task Start()
     {
         OpenAiExample.Setup(); //We need to provide OpenAi API key
-        
+
         Console.WriteLine("(OpenAi) ChatExample with tools is running!");
 
-        var model = AIHub.Model();
-        
         await AIHub.Chat()
             .WithModel("gpt-5-nano")
             .WithMessage("What time is it right now?")

Examples/Examples/Chat/ChatExampleToolsSimpleLocalLLM.cs

@@ -10,8 +10,6 @@ public async Task Start()
     {
         Console.WriteLine("Local LLM ChatExample with tools is running!");
 
-        var model = AIHub.Model();
-
         await AIHub.Chat()
             .WithModel("gemma3:4b")
             .WithMessage("What time is it right now?")

src/MaIN.Services/Services/LLMService/LLMService.cs

@@ -54,7 +54,9 @@ public LLMService(
         CancellationToken cancellationToken = default)
     {
         if (chat.Messages.Count == 0)
+        {
             return null;
+        }
 
         var lastMsg = chat.Messages.Last();
 
@@ -89,7 +91,9 @@ public Task<string[]> GetCurrentModels()
     public Task CleanSessionCache(string? id)
     {
         if (string.IsNullOrEmpty(id) || !_sessionCache.TryRemove(id, out var session))
+        {
             return Task.CompletedTask;
+        }
 
         session.Executor.Context.Dispose();
         return Task.CompletedTask;
@@ -309,7 +313,9 @@ private static async Task ProcessImageMessage(Conversation conversation,
         conversation.Prompt(imageEmbeddings!);
 
         while (executor.BatchedTokenCount > 0)
+        {
             await executor.Infer(cancellationToken);
+        }
 
         var prompt = llmModel.Tokenize($"USER: {lastMsg.Content}\nASSISTANT:", true, false, Encoding.UTF8);
         conversation.Prompt(prompt);
@@ -363,7 +369,9 @@ private static string FormatToolsForPrompt(ToolsConfiguration toolsConfig)
         foreach (var tool in toolsConfig.Tools)
         {
             if (tool.Function == null)
+            {
                 continue;
+            }
 
             toolsList.AppendLine($"- {tool.Function.Name}: {tool.Function.Description}");
             toolsList.AppendLine($"  Parameters: {JsonSerializer.Serialize(tool.Function.Parameters)}");
@@ -673,7 +681,7 @@ await requestOptions.ToolCallback.Invoke(new ToolInvocation
 
         if (iterations >= MaxToolIterations)
         {
-            var errorMessage = "Maximum tool invocation iterations reached. Ending the conversation.";
+            var errorMessage = "Maximum tool invocation iterations reached. Ending the tool-loop prematurely.";
             var iterationMessage = new Message
             {
                 Content = errorMessage,