This contains three things.
When you have python scripting enabled and have scripts toggled, this is where most scripts are stored by default.
The recording and macro features are unmaintained and buggy.
Record a macro. You do this by pressing start, drawing something and then pressing stop. This feature can only record brush strokes. The resulting file is stored as a *.kritarec file.
Play back or edit a krita rec file. The edit can only change the brush preset on strokes or add and remove filters.