Okay, I have a question that I am pretty sure I know the answer to, but I just want to be on the safe side.
If a script is controlling the player while he's walking through pokemon-infested grass, is there any chance a wild pokemon can pop out and interrupt the script?
Also, does anyone know how to edit the description of an item? Or is there a certain item-editing tool that does this?
~Mayan
Nope, you'll be perfectly safe from wild encounters if the player isn't moving on their own accord.
You can use an item editor such as this to change the descriptions.