Add per-answer thinking disclosure

app/MindWork AI Studio/Tools/AIJobs/AIJobService.cs

@@ -273,7 +273,6 @@ public sealed class AIJobService(SettingsManager settingsManager, MessageBus mes
         catch (ProviderRequestException e)
         {
             logger.LogError(e, "The provider request failed for chat generation job '{JobId}'. Status={StatusCode}, Reason='{ReasonPhrase}', Body='{ResponseBody}'", state.Snapshot.JobId, e.StatusCode, e.ReasonPhrase, e.ResponseBody);
-            RemoveEmptyAIResponse(state);
             await this.CompleteChatGenerationAsync(state, AIJobStatus.FAILED, e.UserMessage);
             await MessageBus.INSTANCE.SendError(new(Icons.Material.Filled.CloudOff, e.UserMessage));
         }
@@ -302,7 +301,7 @@ public sealed class AIJobService(SettingsManager settingsManager, MessageBus mes
         var aiText = request.AIText;
         aiText.InitialRemoteWait = false;
         aiText.IsStreaming = false;
-        aiText.Text = aiText.Text.RemoveThinkTags().Trim();
+        aiText.FinalizeStreamContent();
 
         RemoveEmptyAIResponse(state);
 
@@ -367,7 +366,7 @@ public sealed class AIJobService(SettingsManager settingsManager, MessageBus mes
             return;
 
         var aiText = request.AIText;
-        if (!string.IsNullOrWhiteSpace(aiText.Text))
+        if (!string.IsNullOrWhiteSpace(aiText.Text) || !string.IsNullOrWhiteSpace(aiText.Thinking))
             return;
 
         var aiBlock = request.ChatThread.Blocks
@@ -399,8 +398,7 @@ public sealed class AIJobService(SettingsManager settingsManager, MessageBus mes
             var aiText = state.ChatGenerationRequest.AIText;
             aiText.InitialRemoteWait = false;
             aiText.IsStreaming = true;
-            aiText.Text += contentStreamChunk;
-            aiText.Sources.MergeSources(contentStreamChunk.Sources);
+            aiText.ApplyStreamChunk(contentStreamChunk);
 
             if (state.Snapshot.Status is not AIJobStatus.RUNNING)
             {
@@ -519,4 +517,4 @@ public sealed class AIJobService(SettingsManager settingsManager, MessageBus mes
         logger.LogWarning("Skipping AI request because model '{ModelId}' is not available from '{ProviderInstanceName}' (provider={ProviderType}).", chatModel.Id, provider.InstanceName, provider.Provider);
         return false;
     }
-}
+}

app/MindWork AI Studio/Tools/ToolCallingSystem/Harness/ToolCallingLoop.cs

@@ -28,6 +28,7 @@ public sealed class ToolCallingLoop(ILogger<ToolCallingLoop> logger) : IToolCall
         var toolCallCount = 0;
         var toolResultCharacterCount = 0L;
         var toolSources = new List<Source>();
+        var hasThinkingOutput = false;
 
         while (true)
         {
@@ -47,6 +48,13 @@ public sealed class ToolCallingLoop(ILogger<ToolCallingLoop> logger) : IToolCall
 
             toolSources.MergeSources(round.Sources);
 
+            if (!string.IsNullOrWhiteSpace(round.ThinkingOutput))
+            {
+                var separator = hasThinkingOutput ? $"{Environment.NewLine}{Environment.NewLine}" : string.Empty;
+                yield return new ContentStreamChunk(string.Empty, $"{separator}{round.ThinkingOutput}", []);
+                hasThinkingOutput = true;
+            }
+
             //
             // A call without an ID cannot be answered: the provider correlates the result by that
             // ID, and inventing one would have the next request rejected. Nothing can be salvaged
@@ -168,4 +176,4 @@ public sealed class ToolCallingLoop(ILogger<ToolCallingLoop> logger) : IToolCall
     private static string GetDisplayName(ToolCallingLoopContext context, string toolName) => context.RunnableTools
             .FirstOrDefault(tool => tool.Definition.Function.Name.Equals(toolName, StringComparison.Ordinal))
             .Implementation?.GetDisplayName() ?? toolName;
-}
+}

app/MindWork AI Studio/Tools/ToolCallingSystem/Harness/ToolCallingRound.cs

@@ -5,6 +5,7 @@ namespace AIStudio.Tools.ToolCallingSystem.Harness;
 /// longer depends on the provider API it came from.
 /// </summary>
 /// <param name="TextOutput">The text the model produced, empty when it only requested tool calls.</param>
+/// <param name="ThinkingOutput">The human-readable thinking the provider exposed.</param>
 /// <param name="Calls">The tool calls the model requested, empty when it answered instead.</param>
 /// <param name="Sources">Sources the provider itself attached, such as those of a provider-native web search.</param>
-public sealed record ToolCallingRound(string TextOutput, IReadOnlyList<ToolCallingRequestedCall> Calls, IReadOnlyList<ISource> Sources);
+public sealed record ToolCallingRound(string TextOutput, string ThinkingOutput, IReadOnlyList<ToolCallingRequestedCall> Calls, IReadOnlyList<ISource> Sources);