Well.
First - it is no problem to create standalone command-line tool for executing cm_* commands.
Second - you can run DOS box invisible.
Third - may be, but what exactly commands you want to see output from? Can you give command list for script language?
Good.

First - Ok. Now I'm dreamming for this tool. With it and bath files I would be happy.

Second - Sorry, I'm not advanced user, you want to say invisible or minimized.
Third. Well, not
exactly , but some examples, usefull for me, others users can have in mind others, but it's a plugin, so diferent users would have diferent commands.
- size *.dat could return de size, in bytes, of the *.dat files in current path, but without select them or lost current selection!.
size name_of_folder, the same.
Of course, The Calculator 
time could return the current time
search name_of_file could return the path where this files is, if it's only on file in the disk, of course.
Any command with boolean action. Can return True o False, Yes or Not, etc.
Simple conversion utilities (taxe rates, hexadecimal conversion, etc.)
Simple intput-output program. Like
Sorry for scripting language. I'm thinking basically in cm_* commands, if, then, else, for, while and send "mouse or keys" movements. I'm not advanced user.
Finally I think it's important improve de TC command line. May be these plugins isn't the best way, but something is better than nothing.
Does everybody like current command line?
Or someone want expand its abilities?