There have been several cases in the past (e.g. https://gerrit.wikimedia.org/r/#/c/59575/2/GettingStarted.i18n.php) where we could have used a message (included in other messages) referring to one or more pages in the main namespace.
I propose main-namespace-page. This should also have PLURAL support.
Hypothetical use cases:
'Edit your first {{int:main-namespace-page}}'
'These {{int:main-namespace-page|2}} need improvements.'
On Wikipedia, it would be article/articles. On Wikidata, item/items. On Wiktionary, entry/entries, etc.
Version: unspecified
Severity: enhancement