Fix

Author: reakaleek

src/api/Elastic.Documentation.Api.Infrastructure/Adapters/AskAi/StreamTransformerBase.cs

@@ -160,17 +160,22 @@ private async Task ProcessStreamAsync(PipeReader reader, PipeWriter writer, Acti
 			{
 				Logger.LogError(ex, "Failed to parse JSON from SSE event for transformer {TransformerType}. EventType: {EventType}, Data: {Data}",
 					GetType().Name, sseEvent.EventType, sseEvent.Data);
+				var commonTags = new ActivityTagsCollection([
+					new KeyValuePair<string, object?>("sse.type", sseEvent.EventType),
+					new KeyValuePair<string, object?>("sse.data", sseEvent.Data)
+				]);
 
 				// Add error event to activity for JSON parsing failures
 				_ = activity?.AddEvent(
 					new ActivityEvent(
-						"Failed to parse JSON",
+						name: "Failed to parse JSON",
 						timestamp: DateTimeOffset.UtcNow,
-						[new KeyValuePair<string, object?>("sse.type", sseEvent.EventType)]
+						commonTags
 						)
 					);
 				_ = activity?.SetStatus(ActivityStatusCode.Error, "Failed to parse JSON from SSE event");
-				_ = activity?.AddException(ex, [new KeyValuePair<string, object?>("sse.type", sseEvent.EventType)]);
+				_ = activity?.AddException(ex);
+				throw; // Re-throw to be handled by caller
 			}
 
 			if (transformedEvent == null)

src/tooling/docs-builder/Http/DocumentationWebHost.cs

@@ -49,7 +49,7 @@ IConfigurationContext configurationContext
 		// Add Elastic OpenTelemetry for local development
 		// Set OTEL_EXPORTER_OTLP_ENDPOINT environment variable to send to local Elasticsearch
 		// Example: export OTEL_EXPORTER_OTLP_ENDPOINT=http://localhost:8200
-		_ = builder.AddDocsApiOpenTelemetry(enableLocalDevelopmentHints: true);
+		_ = builder.AddDocsApiOpenTelemetry();
 
 		builder.Services.AddElasticDocsApiUsecases("dev");
 #endif