MCP-Undetected-Chromedriver

Instructions

Args:
    script: The JavaScript expression to evaluate - required

Implementation Reference

• src/mcp_server_undetected_chromedriver/server.py:267-290 (handler)

  Full handler implementation for the 'browser_evalute' tool. Includes registration via @mcp.tool(), input schema in function signature and docstring, validation, and execution of JavaScript using driver.execute_script(script). Uses shared helpers for browser management and response formatting.

  @mcp.tool()
  async def browser_evalute(
          script: str,
  ):
      """Evaluate a JavaScript expression in the browser console
  
      Args:
          script: The JavaScript expression to evaluate - required
      """
      assert script, "Script is required"
  
      async def evaluate_handler(driver: uc.Chrome):
          return await create_success_response(
              [
                  "Executed script:",
                  f"{script}",
                  "Result:",
                  f"{driver.execute_script(script)}",
              ]
          )
  
      return await tool.safe_execute(
          ToolContext(webdriver=await ensure_browser()), evaluate_handler
      )