ruijie89 · ruijie89 · Jun 25, 2025 · Jun 25, 2025
diff --git a/src/android.ts b/src/android.ts
@@ -3,7 +3,7 @@ import { execFileSync } from "child_process";
 
 import * as xml from "fast-xml-parser";
 
-import { ActionableError, Button, InstalledApp, Robot, ScreenElement, ScreenElementRect, ScreenSize, SwipeDirection, Orientation } from "./robot";
+import { ActionableError, Button, InstalledApp, Robot, ScreenElement, ScreenElementRect, ScreenSize, SwipeDirection, Orientation, PostureStates } from "./robot";
 
 export interface AndroidDevice {
 	deviceId: string;
@@ -318,6 +318,19 @@ export class AndroidRobot implements Robot {
 		return rotation === "0" ? "portrait" : "landscape";
 	}
 
+	public async changeDevicePosture(posture: PostureStates): Promise<void> {
+		switch (posture) {
+			case "fold": {
+				this.adb("emu", "fold");
+				break;
+			}
+			case "unfold": {
+				this.adb("emu", "unfold");
+				break;
+			}
+		}
+	}
+
 	private async getUiAutomatorDump(): Promise<string> {
 		for (let tries = 0; tries < 10; tries++) {
 			const dump = this.adb("exec-out", "uiautomator", "dump", "/dev/tty").toString();

diff --git a/src/ios.ts b/src/ios.ts
@@ -2,7 +2,7 @@ import { execFileSync } from "child_process";
 import { Socket } from "net";
 
 import { WebDriverAgent } from "./webdriver-agent";
-import { ActionableError, Button, InstalledApp, Robot, ScreenSize, SwipeDirection, ScreenElement, Orientation } from "./robot";
+import { ActionableError, Button, InstalledApp, Robot, ScreenSize, SwipeDirection, ScreenElement, Orientation, PostureStates } from "./robot";
 
 const WDA_PORT = 8100;
 const IOS_TUNNEL_PORT = 60105;
@@ -195,6 +195,10 @@ export class IosRobot implements Robot {
 		const wda = await this.wda();
 		return await wda.getOrientation();
 	}
+
+	public async changeDevicePosture(posture: PostureStates): Promise<void> {
+		throw new ActionableError("Posture changing is not supported for iOS");
+	}
 }
 
 export class IosManager {

diff --git a/src/iphone-simulator.ts b/src/iphone-simulator.ts
@@ -1,7 +1,7 @@
 import { execFileSync } from "child_process";
 
 import { WebDriverAgent } from "./webdriver-agent";
-import { ActionableError, Button, InstalledApp, Robot, ScreenElement, ScreenSize, SwipeDirection, Orientation } from "./robot";
+import { ActionableError, Button, InstalledApp, Robot, ScreenElement, ScreenSize, SwipeDirection, Orientation, PostureStates } from "./robot";
 
 export interface Simulator {
 	name: string;
@@ -134,6 +134,10 @@ export class Simctl implements Robot {
 		const wda = await this.wda();
 		return wda.getOrientation();
 	}
+
+	public async changeDevicePosture(posture: PostureStates): Promise<void> {
+		throw new ActionableError("Posture changing is not supported for iOS");
+	}
 }
 
 export class SimctlManager {

diff --git a/src/robot.ts b/src/robot.ts
@@ -44,6 +44,8 @@ export class ActionableError extends Error {
 
 export type Orientation = "portrait" | "landscape";
 
+export type PostureStates = "fold" | "unfold";
+
 export interface Robot {
 	/**
 	 * Get the screen size of the device in pixels.
@@ -120,4 +122,9 @@ export interface Robot {
 	 * Get the current screen orientation.
 	 */
 	getOrientation(): Promise<Orientation>;
+
+	/**
+	 * Fold or unfold a device. Possible actions: (fold, unfold)
+	 */
+	changeDevicePosture(posture: PostureStates): Promise<void>;
 }
diff --git a/src/server.ts b/src/server.ts
@@ -474,6 +474,19 @@ export const createMcpServer = (): McpServer => {
 		}
 	);
 
+	tool(
+		"mobile_change_posture",
+		"Fold or unfold the device.",
+		{
+			posture: z.enum(["fold", "unfold"]).describe("The desired posture")
+		},
+		async ({ posture }) => {
+			requireRobot();
+			await robot!.changeDevicePosture(posture);
+			return `Changed device posture to ${posture}`;
+		}
+	);
+
 	// async check for latest agent version
 	checkForLatestAgentVersion().then();