Template:Template parameter usage/doc

The Template Parameters tool is now available on Tool Labs, for viewing template parameter usage. It works with TemplateData to show the validity of parameter names that are used in template transclusions. For a required parameter, it can display a list of pages where the template is missing the parameter. The tool also shows commonly used values for each parameter. The data is updated monthly.

Usage
The template is included in transclusions of TemplateData header. If it's needed elsewhere, simply place the following in the template's documentation: