update tool error

locales/en-US/plugin.json

@@ -189,6 +189,7 @@
   "builtins.lobe-web-browsing.title": "Web Search",
   "confirm": "Confirm",
   "debug.arguments": "Arguments",
+  "debug.error": "Error",
   "debug.function_call": "Function call",
   "debug.intervention": "Skill intervention",
   "debug.off": "Debug off",

locales/zh-CN/plugin.json

@@ -189,6 +189,7 @@
   "builtins.lobe-web-browsing.title": "联网搜索",
   "confirm": "确认",
   "debug.arguments": "调用参数",
+  "debug.error": "错误信息",
   "debug.function_call": "函数调用",
   "debug.intervention": "技能干预",
   "debug.off": "关闭调试",

src/features/Conversation/Messages/AssistantGroup/Tool/Debug/index.tsx

@@ -1,6 +1,7 @@
 import { type ToolIntervention } from '@lobechat/types';
 import { Block, Highlighter, Icon, Tabs, type TabsProps } from '@lobehub/ui';
 import {
+  AlertTriangleIcon,
   BracesIcon,
   FunctionSquareIcon,
   HandIcon,
@@ -117,8 +118,31 @@ const Debug = memo<DebugProps>(
           key: 'intervention',
           label: t('debug.intervention'),
         },
+        {
+          children: (
+            <Highlighter
+              language={'json'}
+              style={{ background: 'transparent', borderRadius: 0, height: '100%' }}
+              variant={'filled'}
+            >
+              {JSON.stringify(result?.error, null, 2)}
+            </Highlighter>
+          ),
+          icon: <Icon icon={AlertTriangleIcon} />,
+          key: 'error',
+          label: t('debug.error'),
+        },
+      ],
+      [
+        functionCall,
+        isJsonResult,
+        params,
+        result?.content,
+        result?.state,
+        result?.error,
+        intervention,
+        t,
       ],
-      [functionCall, isJsonResult, params, result?.content, result?.state, intervention, t],
     );
 
     return (

src/features/Conversation/Messages/AssistantGroup/Tool/Detail/index.tsx

@@ -97,8 +97,9 @@ const Render = memo<RenderProps>(
       return null;
     }
 
-    // Handle error state
-    if (result.error) {
+    // Handle PluginSettingsInvalid error - guide user to configure plugin
+    // Other errors are shown in Debug tab, no special render needed
+    if (result.error?.type === 'PluginSettingsInvalid') {
       return (
         <ErrorResponse
           {...result.error}

src/features/Conversation/Messages/AssistantGroup/Tool/Inspector/ToolTitle.tsx

@@ -20,10 +20,12 @@ export const styles = createStaticStyles(({ css, cssVar }) => ({
   `,
   paramKey: css`
     font-family: ${cssVar.fontFamilyCode};
+    font-size: 12px;
     color: ${cssVar.colorTextTertiary};
   `,
   paramValue: css`
     font-family: ${cssVar.fontFamilyCode};
+    font-size: 12px;
     color: ${cssVar.colorTextSecondary};
   `,
   root: css`

src/features/Conversation/Messages/Tasks/shared/TaskMessages.tsx

@@ -327,11 +327,37 @@ const TaskMessages = memo<TaskMessagesProps>(
       const assistantGroupMessage = messages.find((item) => item.role === 'assistantGroup');
       const userMessage = messages.find((item) => item.role === 'user');
 
-      return {
-        assistantId: assistantGroupMessage?.id ?? '',
-        blocks: assistantGroupMessage?.children ?? [],
-        instruction: userMessage?.content,
-      };
+      // If assistantGroup exists, use its children as blocks
+      if (assistantGroupMessage) {
+        return {
+          assistantId: assistantGroupMessage.id ?? '',
+          blocks: assistantGroupMessage.children ?? [],
+          instruction: userMessage?.content,
+        };
+      }
+
+      // Fallback: support plain assistant message (without tools)
+      // This handles cases where SubAgent returns a simple text response
+      const assistantMessage = messages.find((item) => item.role === 'assistant');
+      if (assistantMessage) {
+        // Convert plain assistant message to block format
+        const block: AssistantContentBlock = {
+          content: assistantMessage.content || '',
+          id: assistantMessage.id,
+        };
+
+        // Copy optional fields if they exist
+        if (assistantMessage.error) block.error = assistantMessage.error;
+        if (assistantMessage.reasoning) block.reasoning = assistantMessage.reasoning;
+
+        return {
+          assistantId: assistantMessage.id ?? '',
+          blocks: [block],
+          instruction: userMessage?.content,
+        };
+      }
+
+      return { assistantId: '', blocks: [], instruction: undefined };
     }, [messages]);
 
     // Calculate total tool calls

src/locales/default/plugin.ts

@@ -190,6 +190,7 @@ export default {
   'builtins.lobe-web-browsing.title': 'Web Search',
   'confirm': 'Confirm',
   'debug.arguments': 'Arguments',
+  'debug.error': 'Error',
   'debug.function_call': 'Function call',
   'debug.intervention': 'Skill intervention',
   'debug.off': 'Debug off',