Help:Extension:Linter/large-tables

Wide tables are used across Wikimedia wikis. These often lead to suboptimal mobile display by adding content wider than the mobile viewport, and have more recently been obscuring the new right-hand-side sidebar on the new Vector 2022 skin, which has a content column that is more limited in width than previous skins. The purpose of this lint is to identify pages with tables that might exceed the limited widths imposed by mobile displays and the Vector 2022 skin, and then to find on-wiki and software-based solutions to the longstanding T66577. Editors may be able to improve the display of wide tables using the guidelines in Recommendations_for_mobile_friendly_articles_on_Wikimedia_wikis.

Example
The lint is still being developed, but currently it will trigger for any table with more than five columns.

e.g.

which renders as: