To aid in fixing grammatical mistakes, detecting errors in using words etc. a browser add-on can be installed which, after registering as a user and logging in to the add-on, will check the text and mark parts of it that might need correcting. These add-ons probably don't need to be configured or adjusted. Changes can be accepted directly in the text editor.

As a kind of gateway theory, when registering as a user to such a service, one may discover that they offer other features such as AI-assisted text generation. In a way, this is the opposite of what this publishing application was intended to be, at least originally, i.e. primarily to create something yourself, with some additional functionality or external service e.g. as a helper and/or checker, if one wants to use them. It probably won't be a bad thing since e.g. rephrasing what is already written by AI is rather similar operation to language translation, which as a feature is already implemented.