diff --git a/.DS_Store b/.DS_Store
index 4516de1..de1f640 100644
Binary files a/.DS_Store and b/.DS_Store differ
diff --git a/modules/file_manager.py b/modules/file_manager.py
index c4fd612..1b14e8d 100644
--- a/modules/file_manager.py
+++ b/modules/file_manager.py
@@ -158,8 +158,8 @@ class FileManager:
             if full_path.parent == self.project_path:
                 return {
                     "success": False,
-                    "error": "禁止在项目根目录直接创建文件，请先创建或选择子目录（例如 ./data 或 ./docs）。",
-                    "suggestion": "请先创建文件夹，再在该文件夹中创建新文件。"
+                    "error": "禁止在项目根目录直接创建文件，请先创建或选择合适的子目录。",
+                    "suggestion": "然后必须**重新**再次创建文件。"
                 }
             if self._use_container():
                 result = self._container_call("create_file", {
diff --git a/static/src/app.ts b/static/src/app.ts
index 1929628..f5633fb 100644
--- a/static/src/app.ts
+++ b/static/src/app.ts
@@ -195,9 +195,10 @@ const appOptions = {
             this.$nextTick(() => {
                 this.autoResizeInput();
             });
-                this.resourceStartContainerStatsPolling();
-                this.resourceStartProjectStoragePolling();
-                this.resourceStartUsageQuotaPolling();
+            this.resourceBindContainerVisibilityWatcher();
+            this.resourceStartContainerStatsPolling();
+            this.resourceStartProjectStoragePolling();
+            this.resourceStartUsageQuotaPolling();
         },
 
         computed: {
@@ -563,6 +564,7 @@ const appOptions = {
                 resourceStartUsageQuotaPolling: 'startUsageQuotaPolling',
                 resourceStopUsageQuotaPolling: 'stopUsageQuotaPolling',
                 resourcePollContainerStats: 'pollContainerStats',
+                resourceBindContainerVisibilityWatcher: 'bindContainerVisibilityWatcher',
                 resourcePollProjectStorage: 'pollProjectStorage',
                 resourceFetchUsageQuota: 'fetchUsageQuota',
                 resourceResetTokenStatistics: 'resetTokenStatistics',
diff --git a/static/src/components/chat/VirtualMonitorSurface.vue b/static/src/components/chat/VirtualMonitorSurface.vue
index 319f05a..b4ef8da 100644
--- a/static/src/components/chat/VirtualMonitorSurface.vue
+++ b/static/src/components/chat/VirtualMonitorSurface.vue
@@ -188,6 +188,7 @@
             <div class="context-menu" ref="fileMenu">
               <button data-action="read">阅读文件</button>
               <button data-action="edit">编辑文件</button>
+              <button data-action="rename">重命名</button>
               <button data-action="delete">删除文件</button>
             </div>
             <div class="context-menu" ref="focusMenu">
diff --git a/static/src/stores/resource.ts b/static/src/stores/resource.ts
index fec38ca..4339cf4 100644
--- a/static/src/stores/resource.ts
+++ b/static/src/stores/resource.ts
@@ -75,6 +75,7 @@ export const useResourceStore = defineStore('resource', {
       down_bps: null,
       up_bps: null
     } as ContainerNetRate,
+    containerVisibilityBound: false,
     lastContainerSample: null as ContainerSample | null,
     containerStatsInFlight: false,
     containerStatsFailCount: 0,
@@ -271,6 +272,22 @@ export const useResourceStore = defineStore('resource', {
         this.pollContainerStats();
       }, this.containerStatsIntervalMs);
     },
+    bindContainerVisibilityWatcher() {
+      if (this.containerVisibilityBound || typeof document === 'undefined') {
+        return;
+      }
+      const handler = () => {
+        if (document.hidden) {
+          this.stopContainerStatsPolling();
+        } else {
+          this.containerStatsFailCount = 0;
+          this.containerStatsIntervalMs = 500;
+          this.startContainerStatsPolling();
+        }
+      };
+      document.addEventListener('visibilitychange', handler);
+      this.containerVisibilityBound = true;
+    },
     async pollProjectStorage() {
       if (this.projectStorageInFlight) {
         return;
diff --git a/sub_agent/core/main_terminal.py b/sub_agent/core/main_terminal.py
index 1a02f2e..738174c 100644
--- a/sub_agent/core/main_terminal.py
+++ b/sub_agent/core/main_terminal.py
@@ -1149,7 +1149,7 @@ class MainTerminal:
                 "type": "function",
                 "function": {
                     "name": "terminal_input",
-                    "description": "向活动终端发送命令或输入。禁止启动会占用终端界面的程序（python/node/nano/vim 等）；如遇卡死请结合 terminal_snapshot 并使用 terminal_reset 恢复。",
+                    "description": "向活动终端发送命令或输入。禁止启动会占用终端界面的程序（python/node/nano/vim 等）；如遇卡死请结合 terminal_snapshot 并使用 terminal_reset 恢复。默认等待输出120秒，最长300秒，超时会尝试中断并返回已捕获输出。",
                     "parameters": {
                         "type": "object",
                         "properties": {
@@ -1167,7 +1167,7 @@ class MainTerminal:
                             },
                             "timeout": {
                                 "type": "number",
-                                "description": "等待输出的最长秒数，默认使用配置项 TERMINAL_OUTPUT_WAIT"
+                                "description": "等待输出的最长秒数，默认120，最大300"
                             }
                         },
                         "required": ["command"]
@@ -1292,11 +1292,15 @@ class MainTerminal:
                 "type": "function",
                 "function": {
                     "name": "run_python",
-                    "description": "执行一次性 Python 脚本，可用于处理二进制或非 UTF-8 文件（如 Excel、Word、PDF、图片），或进行数据分析与验证。请在脚本内显式读取文件并输出结果，避免长时间阻塞。",
+                    "description": "执行一次性 Python 脚本，可用于处理二进制或非 UTF-8 文件（如 Excel、Word、PDF、图片），或进行数据分析与验证。默认超时20秒，最长60秒；超时会尝试中断并返回已捕获输出。",
                     "parameters": {
                         "type": "object",
                         "properties": {
-                            "code": {"type": "string", "description": "Python代码"}
+                            "code": {"type": "string", "description": "Python代码"},
+                            "timeout": {
+                                "type": "number",
+                                "description": "超时时长（秒），默认20，最大60"
+                            }
                         },
                         "required": ["code"]
                     }
@@ -1306,11 +1310,15 @@ class MainTerminal:
                 "type": "function",
                 "function": {
                     "name": "run_command",
-                    "description": "执行一次性终端命令，适合查看文件信息（file/ls/stat/iconv 等）、转换编码或调用 CLI 工具。禁止启动交互式程序；对已聚焦文件仅允许使用 grep -n 等定位命令。输出超过10000字符将被拒绝，可先限制返回体量。",
+                    "description": "执行一次性终端命令，适合查看文件信息（file/ls/stat/iconv 等）、转换编码或调用 CLI 工具。禁止启动交互式程序；对已聚焦文件仅允许使用 grep -n 等定位命令。默认超时10秒，最长30秒，超时会尝试中断并返回已捕获输出；输出超过10000字符将被截断或拒绝。",
                     "parameters": {
                         "type": "object",
                         "properties": {
-                            "command": {"type": "string", "description": "终端命令"}
+                            "command": {"type": "string", "description": "终端命令"},
+                            "timeout": {
+                                "type": "number",
+                                "description": "超时时长（秒），默认10，最大30"
+                            }
                         },
                         "required": ["command"]
                     }
@@ -1963,7 +1971,7 @@ class MainTerminal:
 
             elif tool_name == "run_python":
                 result = await self.terminal_ops.run_python_code(arguments["code"])
-                
+            
             elif tool_name == "run_command":
                 result = await self.terminal_ops.run_command(arguments["command"])
                 
diff --git a/test/.DS_Store b/test/.DS_Store
index 5008ddf..bd4d1cf 100644
Binary files a/test/.DS_Store and b/test/.DS_Store differ