Welcome to the forum, @jpottsx1. The Antidote extension (source) is straightforward. It calls the “Antidote - Correcteur” system service. As such, there isn’t much scope for customization or refinement. However, if Antodote provides other system services, it could invoke those. I don’t have it. installed on my machine to check.
I’ve updated the extension to use JSON, which is simpler to work with than a plist.