Task and/or Extension Command User Arguments On Entry

I am creating an extension and I want the end user to be able to enter an argument (say string) at the step they select "Run Task". The only current workaround I can think of is informing the user to edit the tasks.json file with the arguments, but what I am asking/requesting is that they could enter a one time use argument at the point they call the task from the command pallet, for instance Run Task, then My Task --My Argument. I am having the same issues with extension commands. To my knowledge there is no way to get a user argument into an extension command at the point of execution from the command pallet. See my stack overflow on this topic here: http://stackoverflow.com/questions/34382899/visual-studio-code-user-defined-argument/34385950?noredirect=1#comment56564014_34385950