diff --git a/.claude/agents/soc-llm-engineer-agent.md b/.claude/agents/soc-llm-engineer-agent.md
index 646d435..9acdf6c 100644
--- a/.claude/agents/soc-llm-engineer-agent.md
+++ b/.claude/agents/soc-llm-engineer-agent.md
@@ -1,7 +1,7 @@
 ---
 name: soc-llm-engineer-agent
 description: so-c-chat-clone 大模型工程师 Agent，专注 AI 交互问题诊断、Prompt 优化、LangGraph.js 流程调优与大模型能力方案设计，为其他 Agent 提供 AI 技术支持
-model: sonnet
+model: opus
 tools:
   - Read
   - Edit
diff --git a/langgraph/src/agent/coder/nodes/agent.ts b/langgraph/src/agent/coder/nodes/agent.ts
index 748a8ed..0e3045c 100644
--- a/langgraph/src/agent/coder/nodes/agent.ts
+++ b/langgraph/src/agent/coder/nodes/agent.ts
@@ -97,6 +97,6 @@ export async function agentNode(
     ...truncated,
   ];
 
-  const message = await llm.bindTools([...CODER_TOOLS]).invoke(messagesWithSystem);
+  const message = await llm.bindTools([...CODER_TOOLS], { parallel_tool_calls: false }).invoke(messagesWithSystem);
   return { messages: [message], timestamp: Date.now() };
 }
diff --git a/langgraph/src/agent/enterprise/nodes/agent.ts b/langgraph/src/agent/enterprise/nodes/agent.ts
index fbc0186..52d78ea 100644
--- a/langgraph/src/agent/enterprise/nodes/agent.ts
+++ b/langgraph/src/agent/enterprise/nodes/agent.ts
@@ -145,6 +145,6 @@ export async function agentNode(
     return { messages: [message], timestamp: Date.now() };
   }
 
-  const message = await llm.bindTools(tools).invoke(messagesWithSystem);
+  const message = await llm.bindTools(tools, { parallel_tool_calls: false }).invoke(messagesWithSystem);
   return { messages: [message], timestamp: Date.now() };
 }
diff --git a/langgraph/src/agent/writer/nodes/agent.ts b/langgraph/src/agent/writer/nodes/agent.ts
index 868bd11..1eabba7 100644
--- a/langgraph/src/agent/writer/nodes/agent.ts
+++ b/langgraph/src/agent/writer/nodes/agent.ts
@@ -71,7 +71,7 @@ export async function writerAgentNode(
   ];
 
   const message = await llm
-    .bindTools([...ALL_WRITER_TOOLS])
+    .bindTools([...ALL_WRITER_TOOLS], { parallel_tool_calls: false })
     .invoke(messagesWithSystem);
 
   return { messages: [message], timestamp: Date.now() };
diff --git a/langgraph/src/components/ToolCallStatus.tsx b/langgraph/src/components/ToolCallStatus.tsx
index 9f07de6..2862ea2 100644
--- a/langgraph/src/components/ToolCallStatus.tsx
+++ b/langgraph/src/components/ToolCallStatus.tsx
@@ -284,8 +284,6 @@ export default function ToolCallStatus({
     ticket_list: "ticket-summary",
     ticket_detail: "ticket-detail",
     web_search: "search-result",
-    google_search: "search-result",
-    web_search_deep: "search-result",
     sandbox_run: "sandbox-result",
     web_read: "web-read-progress",
   };
diff --git a/langgraph/src/main.tsx b/langgraph/src/main.tsx
index 7e2481e..07a872d 100644
--- a/langgraph/src/main.tsx
+++ b/langgraph/src/main.tsx
@@ -849,8 +849,6 @@ function App() {
                         ticket_list: "ticket-summary",
                         ticket_detail: "ticket-detail",
                         web_search: "search-result",
-                        google_search: "search-result",
-                        web_search_deep: "search-result",
                         sandbox_run: "sandbox-result",
                         web_read: "web-read-progress",
                       };