ZHA Attribute Mapping

I have a device that has some attributes that don’t show up in Home Assistant but are working through ‘Manage Cluster,’ how would I go about adding an entity for it? I can set the value through ‘Manage Cluster’ but I can’t get a value from it.

Have you looked at ZHA Toolkit? I know you can use it to read attributes, but I haven’t really dived into it much.

zha-toolkit can help read attributes and store them directly to a state or a state attribute.
If you can not read the attribute using the “Manage clusters” feature, you may not be able to read it using zha-toolkit.
You may be able to get useful information using zha-toolkit’s scan_device to find if the attribute in question is readable or not.