diff --git a/src/tools/element.ts b/src/tools/element.ts
index 89f4573..cd89275 100644
--- a/src/tools/element.ts
+++ b/src/tools/element.ts
@@ -596,7 +596,8 @@ function createGetAttributesTool(manager: WeappAutomatorManager): AnyTool {
 function createGetBoundingClientRectTool(manager: WeappAutomatorManager): AnyTool {
   return {
     name: "element_getBoundingClientRect",
-    description: "获取元素相对于视口的边界矩形信息（left、top、width、height、right、bottom）。此方法返回的是考虑 CSS transform 变换后的实际渲染尺寸和位置。支持跨组件查询：若需获取自定义组件内部元素，可将 selector 设为组件选择器，innerSelector 设为内部元素选择器。注意：目前仅支持 ID 选择器、类选择器。",
+    description: "获取元素相对于视口的边界矩形信息（left、top、width、height、right、bottom）。此方法返回的是考虑 CSS transform 变换后的实际渲染尺寸和位置。仅支持 ID 选择器、类选择器。" +
+        "若目标元素位于自定义组件内部，selector 必须指向「当前页面 wxml 源码中直接引用的那一层自定义组件，而非渲染后的组件树」，innerSelector 可在 selector 所指组件的整个子树内匹配。",
     parameters: getBoundingClientRectParameters,
     execute: async (rawArgs, context: ToolContext) =>
       withUserErrorResult(async () => {
diff --git a/src/tools/page.ts b/src/tools/page.ts
index 49335e8..ac17b04 100644
--- a/src/tools/page.ts
+++ b/src/tools/page.ts
@@ -28,6 +28,8 @@ const callPageMethodParameters = connectionContainerSchema.extend({
   args: z.array(z.unknown()).optional(),
 });
 
+const getRendererParameters = connectionContainerSchema;
+
 const waitForElementParameters = connectionContainerSchema.extend({
   selector: z.string().trim().min(1),
   timeout: z.coerce.number().int().positive().optional().default(5000),
@@ -58,6 +60,7 @@ export function createPageTools(manager: WeappAutomatorManager): AnyTool[] {
     createGetPageDataTool(manager),
     createSetPageDataTool(manager),
     createCallPageMethodTool(manager),
+    createGetRendererTool(manager),
   ];
 }
 
@@ -368,3 +371,42 @@ function createCallPageMethodTool(manager: WeappAutomatorManager): AnyTool {
       }),
   };
 }
+
+function createGetRendererTool(manager: WeappAutomatorManager): AnyTool {
+  return {
+    name: "page_getRenderer",
+    description: "获取当前页面运行时渲染引擎，返回 webview 或 skyline。",
+    parameters: getRendererParameters,
+    execute: async (rawArgs, context: ToolContext) =>
+      withUserErrorResult(async () => {
+      const args = getRendererParameters.parse(rawArgs ?? {});
+      return manager.withMiniProgram<ContentResult>(
+        context.log,
+        { overrides: args.connection },
+        async (miniProgram) => {
+          let skylineInfo;
+          try {
+            skylineInfo = await miniProgram.callWxMethod("getSkylineInfoSync");
+          } catch (error) {
+            const message = error instanceof Error ? error.message : String(error);
+            throw new UserError(`调用 wx.getSkylineInfoSync() 失败: ${message}`);
+          }
+
+          const isSupported =
+            typeof skylineInfo === "object" &&
+            skylineInfo !== null &&
+            "isSupported" in skylineInfo &&
+            Boolean((skylineInfo as { isSupported?: unknown }).isSupported);
+          const renderer = isSupported ? "skyline" : "webview";
+
+          return toTextResult(
+            formatJson({
+              renderer,
+              skylineInfo: toSerializableValue(skylineInfo),
+            })
+          );
+        }
+      );
+      }),
+  };
+}