diff --git a/src/AutoAgent/AutoAgent.cpp b/src/AutoAgent/AutoAgent.cpp
index e162389..a284ba7 100644
--- a/src/AutoAgent/AutoAgent.cpp
+++ b/src/AutoAgent/AutoAgent.cpp
@@ -1,6 +1,7 @@
 #include "StdAfx.h"
 #include "resource.h"
 #include "cadsdk.h"
+#include "mcp.h"
 
 HINSTANCE _hdllInstance = NULL ;
 
@@ -49,8 +50,9 @@ extern "C" AcRx::AppRetCode acrxEntryPoint(AcRx::AppMsgCode msg, void* pkt)
 void CR_SCGXCmdFnc();
 void InitApplication()
 {
-	acrxBuildClassHierarchy();
+	mcp::close_mcp();
 
+	acrxBuildClassHierarchy();
 	AddCommand(_T("SHCRACKTOOLS"), _T("CR_SCGX"), _T("CR_SCGX"), ACRX_CMD_TRANSPARENT | ACRX_CMD_USEPICKSET, CR_SCGXCmdFnc);
 
 }
@@ -58,6 +60,7 @@ void InitApplication()
 void UnloadApplication()
 {
 	acedRegCmds->removeGroup(_T("SHCRACKTOOLS"));
+	mcp::close_mcp();
 }
 
 void AddCommand(const TCHAR* cmdGroup, const TCHAR* cmdInt, const TCHAR* cmdLoc,
diff --git a/src/AutoAgent/cmakelists.txt b/src/AutoAgent/cmakelists.txt
index 139886e..e016af6 100644
--- a/src/AutoAgent/cmakelists.txt
+++ b/src/AutoAgent/cmakelists.txt
@@ -10,6 +10,7 @@ set(SOURCES
     "command.cpp"
     "stdafx.cpp"
     "AutoAgent.rc"
+    "mcp.cpp"
     )
 add_def_file_name(SOURCES "${PROJECT_NAME}")
 
diff --git a/src/AutoAgent/mcp.cpp b/src/AutoAgent/mcp.cpp
new file mode 100644
index 0000000..6952232
--- /dev/null
+++ b/src/AutoAgent/mcp.cpp
@@ -0,0 +1,147 @@
+#include "StdAfx.h"
+#include "cadsdk.h"
+#include <winsock2.h>
+#include <ws2tcpip.h>
+#include <thread>
+#include <atomic>
+#include <nlohmann/json.hpp>
+
+#pragma comment(lib, "ws2_32.lib")
+
+static std::thread g_serverThread;
+static std::atomic<bool> g_bRunning(false);
+static SOCKET g_listenSocket = INVALID_SOCKET;
+
+// 用于跨线程传递数据的结构体
+struct TaskData
+{
+	std::string rawJson;
+};
+
+// 真正执行绘图的回调函数 (此函数由 AutoCAD 主线程调度运行)
+static void MainThreadCallback(void *pData)
+{
+	TaskData *pTask = static_cast<TaskData *>(pData);
+	if (pTask == nullptr)
+	{
+		return;
+	}
+
+	try
+	{
+		// 1. 解析 JSON 指令
+		auto j = nlohmann::json::parse(pTask->rawJson);
+		if (j.contains("cmd") && j["cmd"] == "draw_circle")
+		{
+			double x = j.value("x", 0.0);
+			double y = j.value("y", 0.0);
+			double r = j.value("r", 100.0);
+
+			// 2. 锁定当前活动文档 (跨线程操作后的绝对必要步骤)
+			AcApDocument *pDoc = acDocManager->curDocument();
+			if (pDoc)
+			{
+				acDocManager->lockDocument(pDoc, AcAp::kWrite, nullptr, nullptr, false);
+
+				// 3. 常规 ObjectARX 绘图逻辑
+				AcDbDatabase *pDb = pDoc->database();
+				AcDbBlockTable *pBlockTable = nullptr;
+				pDb->getBlockTable(pBlockTable, AcDb::kForRead);
+
+				AcDbBlockTableRecord *pBTR = nullptr;
+				pBlockTable->getAt(ACDB_MODEL_SPACE, pBTR, AcDb::kForWrite);
+				pBlockTable->close();
+
+				AcGePoint3d center(x, y, 0.0);
+				AcGeVector3d normal(0.0, 0.0, 1.0);
+				AcDbCircle *pCircle = new AcDbCircle(center, normal, r);
+
+				AcDbObjectId circleId;
+				pBTR->appendAcDbEntity(circleId, pCircle);
+
+				pBTR->close();
+				pCircle->close();
+
+				acDocManager->unlockDocument(pDoc);
+				acutPrintf(_T("\n[MCP Server] 成功在坐标(%.2f, %.2f)绘制了半径为%.2f的圆\n"), x, y, r);
+			}
+		}
+	}
+	catch (...)
+	{
+		acutPrintf(_T("\n[MCP Server] JSON 解析或执行异常!\n"));
+	}
+
+	// 4. 清理由 Socket 线程在堆上分配的内存
+	delete pTask;
+}
+
+// TCP 监听后台线程
+static void TcpServerLoop()
+{
+	WSADATA wsaData;
+	WSAStartup(MAKEWORD(2, 2), &wsaData);
+
+	g_listenSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+	sockaddr_in serverAddr = { 0 };
+	serverAddr.sin_family = AF_INET;
+	inet_pton(AF_INET, "127.0.0.1", &serverAddr.sin_addr);
+	serverAddr.sin_port = htons(8080);
+
+	bind(g_listenSocket, (sockaddr *)&serverAddr, sizeof(serverAddr));
+	listen(g_listenSocket, SOMAXCONN);
+
+	while (g_bRunning)
+	{
+		// 使用 select 模型实现带超时的轮询，确保插件卸载时线程能正常退出
+		fd_set readSet;
+		FD_ZERO(&readSet);
+		FD_SET(g_listenSocket, &readSet);
+
+		timeval timeout = { 1, 0 }; // 1秒超时机制
+		int ret = select(0, &readSet, nullptr, nullptr, &timeout);
+
+		if (ret > 0 && FD_ISSET(g_listenSocket, &readSet))
+		{
+			SOCKET clientSocket = accept(g_listenSocket, nullptr, nullptr);
+			if (clientSocket != INVALID_SOCKET)
+			{
+				char recvBuf[2048] = { 0 };
+				int bytesReceived = recv(clientSocket, recvBuf, sizeof(recvBuf) - 1, 0);
+				if (bytesReceived > 0)
+				{
+					// 将数据拷贝到堆内存，准备派发给主线程
+					TaskData *pTask = new TaskData;
+					pTask->rawJson = recvBuf;
+
+					// 核心：委托 AutoCAD 主线程在下一个消息循环中执行回调
+					acDocManager->executeInApplicationContext(MainThreadCallback, pTask);
+				}
+				closesocket(clientSocket);
+			}
+		}
+	}
+
+	closesocket(g_listenSocket);
+	WSACleanup();
+}
+
+namespace mcp
+{
+	bool init_mcp()
+	{
+		g_bRunning = true;
+		g_serverThread = std::thread(TcpServerLoop);
+		acutPrintf(_T("\n[MCP Server] 后台 TCP 监听线程已启动 (端口: 8080)...\n"));
+	}
+	
+	bool close_mcp()
+	{
+		g_bRunning = false;
+		if (g_serverThread.joinable())
+		{
+			g_serverThread.join();
+		}
+		acutPrintf(_T("\n[MCP Server] 插件已卸载，线程已关闭。\n"));
+	}
+}
diff --git a/src/AutoAgent/mcp.h b/src/AutoAgent/mcp.h
new file mode 100644
index 0000000..5f7c3d8
--- /dev/null
+++ b/src/AutoAgent/mcp.h
@@ -0,0 +1,9 @@
+#pragma once
+
+namespace mcp
+{
+	bool init_mcp();
+	bool close_mcp();
+}
+
+