Api documentation bot
Note that ApiHelp can now be transcluded, see an example at Extension:Flow/API. I think SPage has plans to start/propose using this feature more widely once it gets possible to select content language à la {{TNT}} (currently it's only possible via interface language change, e.g. [1]).
So far, Special:ApiHelp is extremely ugly (but better than nothing), and the details on Extension:Flow/API are not provided by Special:ApiHelp - they are added by hand. Also there is one aspect of the documentation which can't be generated (currently): information about previous releases. i.e. when each module & parameter was added, deprecated, & removed. Sadly there is not a lot of care for wikis running anything but the bleeding edge.
{{API-head}} has been improved to include a link to the API help module, so the current help is easy to get to, and that template has been added to most of the existing API pages.
My proposal is phab:T89318, John Vandenberg and RobinHood70 raise excellent points. We'll have this tension with any generated documentation, so I mention it in phab:T93026 "remove wiki documentation that duplicates generated documentation (tracking)."
"It gets rebuilt from scratch on every code change" is a feature and a bug :)
