I’ve dreamed of the ability to ask TextMate “what frigging bundle command/snippet is being activated by Ctrl+P or Shift+Ctrl+G?” I’ve silently pined for it. (Answer: params[:id] in Rails, and all the Git bundle commands, respectively).
Really I’m an idiot because the correct thing to do is to ask on ##textmate, “is there a way to …?” but because I figured I knew everything about TextMate I just assumed you couldn’t search for bundle commands by their key combo.
I was pairing with chendo and he had obviously stopped listening to me monologuing about how to do TDD with Shoulda and was randomly clicking things on TextMate.
He found the following:

Find bundle items by key binding
Gold.
by Genís