Playwright MCP Server

import { SessionManager } from '../session-manager.js'; import { ErrorResponse } from '../errors.js'; export interface ExecuteScriptArgs { sessionId: string; script: string; args?: any[]; } export async function handleExecuteScript( sessionManager: SessionManager, args: any ): Promise<any> { const { sessionId, script, args: scriptArgs = [] } = args as ExecuteScriptArgs; const validation = sessionManager.validateSession(sessionId); if (!validation.valid) { return { content: [{ type: 'text', text: JSON.stringify(validation.error) }], isError: true, }; } const session = sessionManager.getSession(sessionId); if (!session) { return { content: [ { type: 'text', text: JSON.stringify({ errorCode: 'SESSION_NOT_FOUND', message: `Session not found: ${sessionId}`, } as ErrorResponse), }, ], isError: true, }; } try { // Execute the script with provided arguments const result = await session.page.evaluate( ({ script, args }) => { try { // Create a function from the script // @ts-ignore const func = new Function('args', ` return (function() { ${script} })(); `); const output = func(args); return { success: true, result: output, }; } catch (error: any) { return { success: false, error: error.message, stack: error.stack, }; } }, { script, args: scriptArgs } ); if (!result.success) { return { content: [ { type: 'text', text: JSON.stringify({ errorCode: 'SCRIPT_EXECUTION_FAILED', message: result.error, stack: result.stack, } as ErrorResponse), }, ], isError: true, }; } return { content: [ { type: 'text', text: JSON.stringify({ success: true, result: result.result, }), }, ], }; } catch (error: any) { return { content: [ { type: 'text', text: JSON.stringify({ errorCode: 'EXECUTE_SCRIPT_FAILED', message: error.message || 'Failed to execute script', sessionId, } as ErrorResponse), }, ], isError: true, }; } }