Router has built in knowledge of gates names swap, move,tswap,tmove, etc.

[jvansomeren]

Router has built-in knowledge of gate names swap, move, tswap, tmove and perhaps more (prep_init, etc.).
Is this ok? Kind of reserved gate names?
Or should it be made configurable to the router what these are?
Or should it be annotated in the configuration file somehow?

[jvansomeren]

The option assume_prep_only_initializes specifies that the prep gate indeed sets the qubit to |0>.
Similarly one could expect options that the other gates (swap, move, tswap, tmove) do what they are supposed to do.
So for prep this is the solution: using an option. But is this a good way to do this?