This template is used in system messages.
Changes to it can cause immediate changes to the MediaWiki user interface. To avoid large-scale disruption, any changes should first be tested in this template's /sandbox or /testcases subpage, or in your own user space.The tested changes can then be added in one single edit to this template. Please discuss any changes on the talk page before implementing them.
|filter= the number of the filter that uses this message, if several filters use it, use |filter2=, |filter3=, etc., 5 maximum.Only visible in the AbuseFilter interface.
|action= – the type of filter. Acceptable values are allow auto block egroup.
|friendly= – changes the display slightly to be a little less bitey.