Change automation with script editor

Hi, I made this :

function HandleMIDI(event) 
{
  if (event instanceof ControlChange && event.number == 64)
  	{
    		if (event.value > 0)
      		{
      			event.value = 127;
      			event.send();
      			event.trace();
      		}
      	else
      	    {
      			event.value = 0;
      			event.send();
      			event.trace();
      		}
    
	}
else event.send();
}

it's work fine but this does not update the automation when I record. How to do it?

This script was made for transform CC of sustain pedal to have a binary result (0 or 127) and obtain a clean result on the automation.

Thanks in advance for you help.