Alright, so I managed to save the game, change the description of the lockpick, reload the game save, and notice the changes. So theoretically, this should work with any save and not require starting a new game (but don't take my word on it, since I have done minimal testing).
Here is a link where you can download the mod files and try it out:
http://www.mediafire.com/download/teea1ty3ztrdk5a/Unbreakable_Lockpicks.zipThe folders just need to be extracted to the corresponding folders in the Divinity filepath.
Basically what I want to know is whether this mod is usable by others. More specifically, I'm wondering whether this is the method through which mods can be shared.
That being said, use it at your own risk.
Edit: It appears that game-saves are Mod-Locked. As in, a game save without the mod enabled is incapable of using the mod, and games that start with a Mod enabled will always use that mod even if it's deactivated in the main menu. So no retroactive effects on existing game saves.
Edit #2: And it seems that only one mod can be used at a time. If multiple mods are activated, only the top one functions. I created an additional mod that changed the Rain scroll at the beginning of the game so that it doesn't go away when used. Using that and the Unbreakable Lockpick mod, one of them failed to function depending on which one was lower in the priority list.
It might be possible to get around this by making mods that are dependent upon the other ones, but this doesn't look good for multiple mods that change the main campaign.
