Thank you, I didn’t know this app, either!
[EDIT: Doesn’t Vizon look very much like Puzzlon? I’ve no idea how to start working with either of them, though.]
Yes, making sure you don’t make unsolvable situations is always a must, but in this thread I am mainly asking how (if at all) writers go through writing responses for all game actions before they (or another programmer) get to code. My idea is either some sort of diagram like the one at the beginning of this thread, or a Room > Item > Action description in a text file.
Room 1
item 1:
EXAMINE: "This is the description of item 1."
TAKE (instead): "You don't want to steal [character 1]'s [item 1]."
character 1:
ASK ABOUT ITEM 1: ...
etc.