New messages
Hello! I wish to ask, whether we are allowed to create new MediaWiki pages, which are not used anywhere yet. I want to create such page for "Automatic refresh" sentence, as this is the most common sentence used in AjaxRC scripts. I have hundreds of translations, but by sharing them here I'd be more sure about their quality, as many users could check them, and other people could have used them. Can new messages be created?
I understand that you want those messages to be translated here via Special:Translate and reach Wikimedia wikis in the end, correct? That's not possible unless the message is added by some MediaWiki extension. You could ask that the message be added to the WikimediaMessages extension, but I can't promise you'll have any satisfaction.
The most recent incarnation of this feature request on Phabricator is phabricator:T156210.
A variant of the current practice, which involves editing a MediaWiki:....js page on some central wiki like Meta or Commons, would be to add your localisation to some Intuition tool and then load the JSON file from Tool Labs (if the load is acceptable, which should be possible for AjaxRC).
There is no request page for any of that. You can ask on the issue tracker, on the local admins' pages and on GitHub respectively for the three options.
https://phabricator.wikimedia.org/T164101A request created