The list of the JSPWiki tags and their short description can be found on the page JSPWiki Tags.
The following pages belong to the 'Tags' category (or link to it for some strange reason) :
AttachmentsIteratorTag
AuthorTag
BreadcrumbsTag
CalendarTag
CheckLockTag
CheckRequestContextTag
CheckVersionTag
ContentEncodingTag
ContentTag
CsrfProtectionTag
DiffLinkTag
EditLinkTag
HasAttachmentsTag
HistoryIteratorTag
IncludeTag
InsertDiffTag
InsertPageTag
LinkToParentTag
LinkToTag
NoSuchPageTag
PageDateTag
PageExistsTag
PageInfoLinkTag
PageNameTag
PageSizeTag
PageTypeTag
PageVersionTag
ParentPageNameTag
PermissionTag
PluginTag
RSSCoffeeCupLinkTag
RSSImageLinkTag
RSSLinkTag
SearchResultIteratorTag
TranslateTag
UploadLinkTag
UserCheckTag
UserNameTag
VariableTag