diff --git a/mcp_agent/agent.py b/mcp_agent/agent.py
index 1533d50..826e4a6 100644
--- a/mcp_agent/agent.py
+++ b/mcp_agent/agent.py
@@ -48,7 +48,8 @@ class Agent:
         tools = await self._mcp.list_tools()
         self.tools_schema = []
         for t in tools:
-            schema = t.inputSchema if hasattr(t, "inputSchema") else {}
+            # MCP SDK v2 改名 input_schema，兼容新旧字段
+            schema = getattr(t, "input_schema", None) or getattr(t, "inputSchema", {})
             # fastmcp Tool 属性兼容：name/description/inputSchema
             name = getattr(t, "name", "")
             desc = getattr(t, "description", "") or ""
diff --git a/mcp_server/mcp_server.py b/mcp_server/mcp_server.py
index 1fe77e5..a783e59 100644
--- a/mcp_server/mcp_server.py
+++ b/mcp_server/mcp_server.py
@@ -163,6 +163,38 @@ def de_swipe(serial: str, x1: int, y1: int, x2: int, y2: int,
     return _ok({"action": "swipe", "serial": serial})
 
 
+_KEYS = ("back", "home", "recent", "menu", "power", "volume_up",
+         "volume_down", "enter", "delete", "search", "camera")
+
+
+@mcp.tool()
+def de_wake(serial: str) -> dict:
+    """点亮设备屏幕并解锁（熄屏时先调用它再截图）。"""
+    try:
+        _check_write()
+        serial = _check_serial(serial)
+        platform().wake(serial)
+    except PlatformError as e:
+        return _err(e)
+    audit.audit("de_wake", serial, "", "ok")
+    return _ok({"action": "wake", "serial": serial})
+
+
+@mcp.tool()
+def de_press_key(serial: str, key: str) -> dict:
+    """按设备按键：back/home/recent/menu/power/enter/delete 等。"""
+    try:
+        _check_write()
+        serial = _check_serial(serial)
+        if key not in _KEYS:
+            raise PlatformError("invalid_param", f"不支持的按键: {key}（可选 {_KEYS}）")
+        platform().press_key(serial, key)
+    except PlatformError as e:
+        return _err(e)
+    audit.audit("de_press_key", serial, key, "ok")
+    return _ok({"action": "press_key", "serial": serial, "key": key})
+
+
 def main():
     _log.info("MCP mobile-control 启动: allow_write=%s port=%s",
               S.allow_write, S.http_port)
diff --git a/mcp_server/platform_client.py b/mcp_server/platform_client.py
index ff3fb9f..cb8cadc 100644
--- a/mcp_server/platform_client.py
+++ b/mcp_server/platform_client.py
@@ -107,6 +107,18 @@ class PlatformClient:
             "duration": float(duration)})
         return self._check_op(r, "swipe")
 
+    def wake(self, serial):
+        """亮屏并解锁（POST /api/device/screen_all mode=on）。"""
+        r = self._post("/api/device/screen_all",
+                       json={"mode": "on", "serials": [serial]})
+        return self._check_op(r, "wake")
+
+    def press_key(self, serial, key):
+        """按键（POST /api/screen/key）。"""
+        r = self._post("/api/screen/key",
+                       json={"serial": serial, "key": key})
+        return self._check_op(r, "key")
+
     @staticmethod
     def _check_op(r, name):
         if r.status_code == 503: