NagVis can now (till version 1.8rc1) handle Check_MK's host tag and tag group information.
These information can be added to the hover menus of the NagVis objects.
WATO exports the host tag and tag group definitions to a PHP file which is then read by
NagVis to gather the needed information. The PHP file is located at var/check_mk/wato/php-api/hosttags.php
in OMD environments.
To the list of all Werks