Similar to mutators, but runs on everything, including dos and says,  and any other modality where the player is inputting text; and possibly outputs as well; with settings for selecting where to run; and preferably coming with several options built in, things like "funnier", "more detailed", "more erotic", "made SFW", "more confident", "less confident", "insert technobabble where needed", "very badass",  "in the style of author X", "babytalk" etc,