Hello Gabriel,
Vera’s pre-defined device database is called KitDevice and it’s not publicly documented because the integration of a Z-wave device is done by us, and has a lot of other dependencies.
For example, Vera knows a device is a flood sensor by some Z-wave identification commands (Manufacturer Info and Version) sent by the device at first inclusion.
Based on Manufacturer info and Version, devices that pass our testing, are added to KitDevice, then, they will be detected and if necessary, custom variables and parameters are added automatically on inclusion.