refactor: update device handling in Automate tools

src/tools/appautomate-utils/appium-sdk/constants.ts

@@ -5,6 +5,7 @@ import {
   AppSDKSupportedLanguageEnum,
   AppSDKSupportedPlatformEnum,
 } from "./index.js";
+import { MobileDeviceSchema } from "../../sdk-utils/common/schema.js";
 
 // App Automate specific device configurations
 export const APP_DEVICE_CONFIGS = {
@@ -50,34 +51,11 @@ export const SETUP_APP_AUTOMATE_SCHEMA = {
     ),
 
   devices: z
-    .array(
-      z.union([
-        // Android: [android, deviceName, osVersion]
-        z.tuple([
-          z
-            .literal(AppSDKSupportedPlatformEnum.android)
-            .describe("Platform identifier: 'android'"),
-          z
-            .string()
-            .describe(
-              "Device name, e.g. 'Samsung Galaxy S24', 'Google Pixel 8'",
-            ),
-          z.string().describe("Android version, e.g. '14', '16', 'latest'"),
-        ]),
-        // iOS: [ios, deviceName, osVersion]
-        z.tuple([
-          z
-            .literal(AppSDKSupportedPlatformEnum.ios)
-            .describe("Platform identifier: 'ios'"),
-          z.string().describe("Device name, e.g. 'iPhone 15', 'iPhone 14 Pro'"),
-          z.string().describe("iOS version, e.g. '17', '16', 'latest'"),
-        ]),
-      ]),
-    )
+    .array(MobileDeviceSchema)
     .max(3)
     .default([])
     .describe(
-      "Tuples describing target mobile devices. Add device only when user asks explicitly for it. Defaults to [] . Example: [['android', 'Samsung Galaxy S24', '14'], ['ios', 'iPhone 15', '17']]",
+      "Mobile device objects array. Use the object format directly - no transformation needed. Add only when user explicitly requests devices. Examples: [{ platform: 'android', deviceName: 'Samsung Galaxy S24', osVersion: '14' }] or [{ platform: 'ios', deviceName: 'iPhone 15', osVersion: '17' }].",
     ),
 
   appPath: z

src/tools/appautomate-utils/appium-sdk/handler.ts

@@ -2,7 +2,11 @@ import { z } from "zod";
 import { CallToolResult } from "@modelcontextprotocol/sdk/types.js";
 import { BrowserStackConfig } from "../../../lib/types.js";
 import { getBrowserStackAuth } from "../../../lib/get-auth.js";
-import { validateAppAutomateDevices } from "../../sdk-utils/common/device-validator.js";
+import {
+  validateAppAutomateDevices,
+  convertMobileDevicesToTuples,
+  DEFAULT_MOBILE_DEVICE,
+} from "../../sdk-utils/common/device-validator.js";
 
 import {
   getAppUploadInstruction,
@@ -38,18 +42,17 @@ export async function setupAppAutomateHandler(
   const testingFramework =
     input.detectedTestingFramework as AppSDKSupportedTestingFramework;
   const language = input.detectedLanguage as AppSDKSupportedLanguage;
-  const inputDevices = (input.devices as Array<Array<string>>) ?? [];
   const appPath = input.appPath as string;
   const framework = input.detectedFramework as SupportedFramework;
 
   //Validating if supported framework or not
   validateSupportforAppAutomate(framework, language, testingFramework);
 
-  // Use default mobile devices when array is empty
-  const devices =
-    inputDevices.length === 0
-      ? [["android", "Samsung Galaxy S24", "latest"]]
-      : inputDevices;
+  // Convert device objects to tuples for validator
+  const devices: Array<Array<string>> =
+    input.devices.length === 0
+      ? DEFAULT_MOBILE_DEVICE
+      : convertMobileDevicesToTuples(input.devices);
 
   // Validate devices against real BrowserStack device data
   const validatedEnvironments = await validateAppAutomateDevices(devices);

src/tools/appautomate-utils/native-execution/constants.ts

@@ -1,6 +1,6 @@
 import { z } from "zod";
 import { AppTestPlatform } from "./types.js";
-import { AppSDKSupportedPlatformEnum } from "../appium-sdk/types.js";
+import { MobileDeviceSchema } from "../../sdk-utils/common/schema.js";
 
 export const RUN_APP_AUTOMATE_DESCRIPTION = `Execute pre-built native mobile test suites (Espresso for Android, XCUITest for iOS) by direct upload to BrowserStack. ONLY for compiled .apk/.ipa test files. This is NOT for SDK integration or Appium tests. For Appium-based testing with SDK setup, use 'setupBrowserStackAppAutomateTests' instead.`;
 
@@ -30,34 +30,11 @@ export const RUN_APP_AUTOMATE_SCHEMA = {
         "If in other directory, provide existing test file path",
     ),
   devices: z
-    .array(
-      z.union([
-        // Android: [android, deviceName, osVersion]
-        z.tuple([
-          z
-            .literal(AppSDKSupportedPlatformEnum.android)
-            .describe("Platform identifier: 'android'"),
-          z
-            .string()
-            .describe(
-              "Device name, e.g. 'Samsung Galaxy S24', 'Google Pixel 8'",
-            ),
-          z.string().describe("Android version, e.g. '14', '16', 'latest'"),
-        ]),
-        // iOS: [ios, deviceName, osVersion]
-        z.tuple([
-          z
-            .literal(AppSDKSupportedPlatformEnum.ios)
-            .describe("Platform identifier: 'ios'"),
-          z.string().describe("Device name, e.g. 'iPhone 15', 'iPhone 14 Pro'"),
-          z.string().describe("iOS version, e.g. '17', '16', 'latest'"),
-        ]),
-      ]),
-    )
+    .array(MobileDeviceSchema)
     .max(3)
     .default([])
     .describe(
-      "Tuples describing target mobile devices. Add device only when user asks explicitly for it. Defaults to [] . Example: [['android', 'Samsung Galaxy S24', '14'], ['ios', 'iPhone 15', '17']]",
+      "Mobile device objects array. Use the object format directly - no transformation needed. Add only when user explicitly requests devices. Examples: [{ platform: 'android', deviceName: 'Samsung Galaxy S24', osVersion: '14' }] or [{ platform: 'ios', deviceName: 'iPhone 15', osVersion: '17' }].",
     ),
   project: z
     .string()

src/tools/appautomate.ts

@@ -9,7 +9,11 @@ import { maybeCompressBase64 } from "../lib/utils.js";
 import { remote } from "webdriverio";
 import { AppTestPlatform } from "./appautomate-utils/native-execution/types.js";
 import { setupAppAutomateHandler } from "./appautomate-utils/appium-sdk/handler.js";
-import { validateAppAutomateDevices } from "./sdk-utils/common/device-validator.js";
+import {
+  validateAppAutomateDevices,
+  convertMobileDevicesToTuples,
+  DEFAULT_MOBILE_DEVICE,
+} from "./sdk-utils/common/device-validator.js";
 
 import {
   SETUP_APP_AUTOMATE_DESCRIPTION,
@@ -378,7 +382,15 @@ export default function addAppAutomationTools(
           undefined,
           config,
         );
-        return await runAppTestsOnBrowserStack(args, config);
+        // Convert device objects to tuples for the handler
+        const devices: Array<Array<string>> =
+          args.devices.length === 0
+            ? DEFAULT_MOBILE_DEVICE
+            : convertMobileDevicesToTuples(args.devices);
+        return await runAppTestsOnBrowserStack(
+          { ...args, devices },
+          config,
+        );
       } catch (error) {
         trackMCP(
           "runAppTestsOnBrowserStack",

src/tools/sdk-utils/bstack/sdkHandler.ts

@@ -22,13 +22,44 @@ export async function runBstackSDKOnly(
   const authString = getBrowserStackAuth(config);
   const [username, accessKey] = authString.split(":");
 
-  // Validate devices against real BrowserStack device data
-  const tupleTargets = (input as any).devices as
-    | Array<Array<string>>
-    | undefined;
+  // Convert device objects to tuples for validator
+  const devices = input.devices || [];
+  const tupleTargets: Array<Array<string>> = devices.map((device) => {
+    if (device.platform === "windows") {
+      return [
+        "windows",
+        device.osVersion,
+        device.browser,
+        device.browserVersion || "latest",
+      ];
+    } else if (device.platform === "macos") {
+      return [
+        "macos",
+        device.osVersion,
+        device.browser,
+        device.browserVersion || "latest",
+      ];
+    } else if (device.platform === "android") {
+      return [
+        "android",
+        device.deviceName,
+        device.osVersion,
+        device.browser || "chrome",
+      ];
+    } else if (device.platform === "ios") {
+      return [
+        "ios",
+        device.deviceName,
+        device.osVersion,
+        device.browser || "safari",
+      ];
+    } else {
+      throw new Error(`Unsupported platform: ${device.platform}`);
+    }
+  });
 
   const validatedEnvironments = await validateDevices(
-    tupleTargets || [],
+    tupleTargets,
     input.detectedBrowserAutomationFramework,
   );
 

src/tools/sdk-utils/common/device-validator.ts

@@ -72,6 +72,11 @@ const DEFAULTS = {
   ios: { device: "iPhone 15", browser: "safari" },
 } as const;
 
+// Default mobile device tuple for App Automate when no devices are provided
+export const DEFAULT_MOBILE_DEVICE: Array<Array<string>> = [
+  ["android", "Samsung Galaxy S24", "latest"],
+];
+
 // Performance optimization: Indexed maps for faster lookups
 interface DesktopIndex {
   byOS: Map<string, DesktopBrowserEntry[]>;
@@ -621,6 +626,23 @@ export async function validateAppAutomateDevices(
 // SHARED UTILITY FUNCTIONS
 // ============================================================================
 
+/**
+ * Convert mobile device objects to tuples for validators
+ * @param devices Array of device objects with platform, deviceName, osVersion
+ * @returns Array of tuples [platform, deviceName, osVersion]
+ */
+export function convertMobileDevicesToTuples(
+  devices: Array<{ platform: string; deviceName: string; osVersion: string }>,
+): Array<Array<string>> {
+  return devices.map((device) => {
+    if (device.platform === "android" || device.platform === "ios") {
+      return [device.platform, device.deviceName, device.osVersion];
+    } else {
+      throw new Error(`Unsupported platform: ${device.platform}`);
+    }
+  });
+}
+
 // Exact browser validation (preferred for structured fields)
 function validateBrowserExact(
   requestedBrowser: string,

src/tools/sdk-utils/common/schema.ts

@@ -48,67 +48,80 @@ export const SetUpPercyParamsShape = {
     ),
 };
 
+// Shared mobile device schema for App Automate (no browser field)
+export const MobileDeviceSchema = z.discriminatedUnion("platform", [
+  z.object({
+    platform: z.literal("android"),
+    deviceName: z.string().describe("Device name, e.g. 'Samsung Galaxy S24', 'Google Pixel 8'"),
+    osVersion: z.string().describe("Android version, e.g. '14', '16', 'latest'"),
+  }),
+  z.object({
+    platform: z.literal("ios"),
+    deviceName: z.string().describe("Device name, e.g. 'iPhone 15', 'iPhone 14 Pro'"),
+    osVersion: z.string().describe("iOS version, e.g. '17', '16', 'latest'"),
+  }),
+]);
+
+const DeviceSchema = z.discriminatedUnion("platform", [
+  z.object({
+    platform: z.literal("windows"),
+    osVersion: z.string().describe("Windows version, e.g. '10', '11'"),
+    browser: z.string().describe("Browser name, e.g. 'chrome', 'firefox', 'edge'"),
+    browserVersion: z
+      .string()
+      .optional()
+      .describe("Browser version, e.g. '132', 'latest', 'oldest'"),
+  }),
+  z.object({
+    platform: z.literal("android"),
+    deviceName: z
+      .string()
+      .describe("Device name, e.g. 'Samsung Galaxy S24', 'Google Pixel 8'"),
+    osVersion: z.string().describe("Android version, e.g. '14', '16', 'latest'"),
+    browser: z
+      .string()
+      .optional()
+      .describe("Browser name, e.g. 'chrome', 'samsung browser'"),
+  }),
+  z.object({
+    platform: z.literal("ios"),
+    deviceName: z
+      .string()
+      .describe("Device name, e.g. 'iPhone 15', 'iPhone 14 Pro'"),
+    osVersion: z.string().describe("iOS version, e.g. '17', 'latest'"),
+    browser: z
+      .string()
+      .optional()
+      .describe("Browser name, typically 'safari'"),
+  }),
+  z.object({
+    platform: z.literal("macos"),
+    osVersion: z.string().describe("macOS version name, e.g. 'Sequoia', 'Ventura'"),
+    browser: z.string().describe("Browser name, e.g. 'safari', 'chrome'"),
+    browserVersion: z
+      .string()
+      .optional()
+      .describe("Browser version, e.g. 'latest'"),
+  }),
+]);
+
 export const RunTestsOnBrowserStackParamsShape = {
   projectName: z
     .string()
     .describe("A single name for your project to organize all your tests."),
   detectedLanguage: z.nativeEnum(SDKSupportedLanguageEnum),
-  detectedBrowserAutomationFramework: z.nativeEnum(
-    SDKSupportedBrowserAutomationFrameworkEnum,
-  ),
+  detectedBrowserAutomationFramework: z.nativeEnum(SDKSupportedBrowserAutomationFrameworkEnum),
   detectedTestingFramework: z.nativeEnum(SDKSupportedTestingFrameworkEnum),
   devices: z
-    .array(
-      z.union([
-        // Windows: [windows, osVersion, browser, browserVersion]
-        z.tuple([
-          z
-            .nativeEnum(WindowsPlatformEnum)
-            .describe("Platform identifier: 'windows'"),
-          z.string().describe("Windows version, e.g. '10', '11'"),
-          z.string().describe("Browser name, e.g. 'chrome', 'firefox', 'edge'"),
-          z
-            .string()
-            .describe("Browser version, e.g. '132', 'latest', 'oldest'"),
-        ]),
-        // Android: [android, name, model, osVersion, browser]
-        z.tuple([
-          z
-            .literal(PlatformEnum.ANDROID)
-            .describe("Platform identifier: 'android'"),
-          z
-            .string()
-            .describe(
-              "Device name, e.g. 'Samsung Galaxy S24', 'Google Pixel 8'",
-            ),
-          z.string().describe("Android version, e.g. '14', '16', 'latest'"),
-          z.string().describe("Browser name, e.g. 'chrome', 'samsung browser'"),
-        ]),
-        // iOS: [ios, name, model, osVersion, browser]
-        z.tuple([
-          z.literal(PlatformEnum.IOS).describe("Platform identifier: 'ios'"),
-          z.string().describe("Device name, e.g. 'iPhone 12 Pro'"),
-          z.string().describe("iOS version, e.g. '17', 'latest'"),
-          z.string().describe("Browser name, typically 'safari'"),
-        ]),
-        // macOS: [mac|macos, name, model, browser, browserVersion]
-        z.tuple([
-          z
-            .nativeEnum(MacOSPlatformEnum)
-            .describe("Platform identifier: 'mac' or 'macos'"),
-          z.string().describe("macOS version name, e.g. 'Sequoia', 'Ventura'"),
-          z.string().describe("Browser name, e.g. 'safari', 'chrome'"),
-          z.string().describe("Browser version, e.g. 'latest'"),
-        ]),
-      ]),
-    )
+    .array(DeviceSchema)
     .max(3)
     .default([])
     .describe(
-      "Preferred tuples of target devices.Add device only when user asks explicitly for it. Defaults to [] . Example: [['windows', '11', 'chrome', 'latest']]",
+      "Device objects array. Use the object format directly - no transformation needed. Add only when user explicitly requests devices. Examples: [{ platform: 'windows', osVersion: '11', browser: 'chrome', browserVersion: 'latest' }] or [{ platform: 'android', deviceName: 'Samsung Galaxy S24', osVersion: '14', browser: 'chrome' }].",
     ),
 };
 
+
 export const SetUpPercySchema = z.object(SetUpPercyParamsShape);
 
 export const RunTestsOnBrowserStackSchema = z.object(