import { processScreenshotResponse } from '../utils/image.js';
// Tools that return images and need resize processing
const SCREENSHOT_TOOLS = ['take_screenshot'];
// Tools that require device_id parameter
const DEVICE_REQUIRED_TOOLS = [
'take_screenshot',
'tap_on',
'input_text',
'back',
'launch_app',
'stop_app',
'run_flow',
'run_flow_files',
'inspect_view_hierarchy',
];
export function createMaestroToolsProxy(managers) {
return {
async getTools() {
if (!managers.maestroManager.isReady()) {
try {
await managers.maestroManager.initialize();
}
catch (error) {
console.error('[expo-mcp] Failed to initialize Maestro for tools list:', error);
return [];
}
}
const tools = managers.maestroManager.getTools();
// Remove device_id from schemas - it's auto-injected from session
return tools.map((tool) => {
if (DEVICE_REQUIRED_TOOLS.includes(tool.name)) {
const schema = { ...tool.inputSchema };
if (schema.properties) {
const { device_id, ...restProperties } = schema.properties;
schema.properties = restProperties;
}
if (schema.required && Array.isArray(schema.required)) {
schema.required = schema.required.filter((r) => r !== 'device_id');
}
return { ...tool, inputSchema: schema };
}
return tool;
});
},
async callTool(name, args) {
let enhancedArgs = { ...args };
// Check for active session and inject device_id for device-required tools
if (DEVICE_REQUIRED_TOOLS.includes(name)) {
if (!managers.expoManager.hasActiveSession()) {
throw new Error('No active session. Call launch_expo first to establish a session.');
}
const deviceId = managers.expoManager.getDeviceId();
enhancedArgs = { ...args, device_id: deviceId };
}
const result = await managers.maestroManager.callTool(name, enhancedArgs);
// Process screenshot responses to resize images if needed
if (SCREENSHOT_TOOLS.includes(name)) {
return await processScreenshotResponse(result);
}
return result;
},
};
}
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