p66

src/Agent/AgentRunner.php

@@ -4516,7 +4516,10 @@ final readonly class AgentRunner
                 $noLlmMessage = $this->agentRunnerConfig->getProductionUiText('no_llm_history_default');
             }
 
-            $parts[] = 'Systemhinweis: ' . $noLlmMessage;
+            $parts[] = $this->renderAgentTemplate(
+                $this->agentRunnerConfig->getHistoryResponseSystemNoticeTemplate(),
+                ['message' => $noLlmMessage]
+            );
         }
 
         return trim(implode("\n\n", $parts));
@@ -5015,7 +5018,10 @@ final readonly class AgentRunner
 
         if (!$this->debug) {
             return $this->agentRunnerConfig->getGenericInternalErrorMessage()
-                . '<br><small>Technischer Fehler: ' . $safeMessage . '</small>';
+                . $this->renderAgentTemplate(
+                    $this->agentRunnerConfig->getTechnicalErrorDetailTemplate(),
+                    ['message' => $safeMessage]
+                );
         }
 
         return $this->agentRunnerConfig->getDebugInternalErrorPrefix()

src/Config/AgentRunnerConfig.php

@@ -386,6 +386,15 @@ final class AgentRunnerConfig
         return $this->getRequiredString($legacyKey);
     }
 
+    private function getChatOnlyRequiredString(string $chatKey): string
+    {
+        if ($this->chatMessages === null) {
+            throw new \InvalidArgumentException(sprintf('RetrieX chat messages config key "%s" is required.', $chatKey));
+        }
+
+        return $this->chatMessages->getString($chatKey);
+    }
+
     private function getChatStringAllowEmpty(string $chatKey, string $legacyKey): string
     {
         if ($this->chatMessages !== null) {
@@ -1045,6 +1054,16 @@ final class AgentRunnerConfig
         return $this->getChatRequiredString('agent.messages.debug_internal_error_prefix', 'messages.debug_internal_error_prefix');
     }
 
+    public function getTechnicalErrorDetailTemplate(): string
+    {
+        return $this->getChatOnlyRequiredString('agent.messages.technical_error_detail_template');
+    }
+
+    public function getHistoryResponseSystemNoticeTemplate(): string
+    {
+        return $this->getChatOnlyRequiredString('agent.production_ui.templates.history_response_system_notice');
+    }
+
     public function getExternalUrlSourceLabel(): string
     {
         return $this->getChatRequiredString('agent.source_labels.external_url', 'source_labels.external_url');

src/Config/ChatMessagesConfig.php

@@ -298,6 +298,7 @@ final class ChatMessagesConfig
             'agent.messages.shop_query_optimization_heartbeat',
             'agent.messages.generic_internal_error',
             'agent.messages.debug_internal_error_prefix',
+            'agent.messages.technical_error_detail_template',
             'agent.final_answer_guard.truncation_message',
             'agent.no_llm_fallback.messages.shop_only',
             'agent.no_llm_fallback.messages.shop_with_knowledge',
@@ -419,6 +420,7 @@ final class ChatMessagesConfig
             'agent.production_ui.templates.shop_meta_result_count',
             'agent.production_ui.templates.history_notice_without_detail',
             'agent.production_ui.templates.history_notice_with_detail',
+            'agent.production_ui.templates.history_response_system_notice',
             'agent.source_labels.external_url',
             'agent.source_labels.rag_knowledge',
             'agent.source_labels.conversation_history',