I am the developer of "put window" extension (https://github.com/negesti/gnome-shell-extensions-negesti).
Because of my bug http://tinyurl.com/bu7pyv7 i tried your extension to see how you have fixed this problem.
If you use gnome-shell feature to "tile" windows with the mouse e.g. move it to an edge metawindow.resize will not work and the window does not change:
For a details description of the behaviour check my issue (the link to gnome-shell-list)
I ve been trying lately to correct that bug, but I can t find on metawindow what is causing this bug. I ve been trying to maximize unmaximize minimize etc... but nothing. I ll be very interrested if by any chance you succeed in fixing this bug. If I do i'll let you know as well. ;)
That was my idea when i reported the "bug" :).
Funny thing is, if you horizontal maximize the window it is possible to change the height but it will stay on the left/right edge and restore the snapped position and size when it is unmaximize(horizontal).
Any news about it ?!
excludes Conky from windows which are auto-tiled. see issue #1