Causes the template to add the page (the category) to Category:Container categories and include a {{Container category}} style message. To inhibit self-categorisation, set |container_category=no.
|tracking=true/yes
Causes the template to add the page (the category) to Category:Tracking categories and include a {{Tracking category}} style message. To inhibit self-categorisation, set |tracking_category=no.
|purpose=
To add a short explanation of the tracking category after the message, use |purpose=Short explanation. The |tracking= parameter must be set to true or yes to display.
|desc=
Text supplied will be placed below the template with a boldfaced header of "Description:". The word "Description" can be replaced by something else, using |alt=Something else.
|hidden=true/yes
Causes the template to hide the page (the category), add it to Category:Hidden categories and to include a {{Hidden category}} style message. Using |tracking=false/no or |tracking=true/yes, in addition, will give slightly different messages in the box.
|empty=true/yes
Includes a {{Possibly empty category}} style message. In addition, to add a short explanation of the empty category after the message, use |empty_text=Short explanation.
{{Maintenance category|shortcut=CAT:WCAT
|hidden=true
|tracking=false
|purpose=This category tracks pages tagged with {{tl|Citation needed}}.<!-- This text will not display since "tracking" is set to "false"-->|desc=Category for articles (and other pages, such as portals and mainspace-intended templates) tagged as needing or more citations for verification, using the {{tlx|Citation needed}} template. Does not include discussion pages tagged with {{tlx|Talkfact}}.
}}
This is a tracking category. It builds and maintains a list of pages primarily for the sake of the list itself. Pages are added to tracking categories through templates.
This is a tracking category. It builds and maintains a list of pages primarily for the sake of the list itself. Pages are added to tracking categories through templates.
The above template should only be transcluded in the category namespace(s).
Code
{{Maintenance category|empty=true
|empty_text=This category is tracking [[academic journal]]s by the {{para|frequency}} parameter of their {{tl|Infobox journal}}. This category should ideally be empty, but will be populated when non-standard {{para|frequency}} parameters are used.
|alt='''Alternative text''':
|desc=Usage with the {{para|alt}} parameter.
}}