In terms of entity staleness - the only option existing today is data regarding when an entity has last changed.

This is not enough when looking at specific properties.

For example -

Let's say there is an entity, which has a property with the value . It would be great to know when the last time the property was updated ( not necessarily when the value was changed - but when the last "keepalive" for this property happened).

This would allow creating all sorts of interesting scorecards, showing entity staleness levels per entity.

Ideally, I would like to be able to toggle a flag for a certain property for example . This in turn will create a read-only datetime property which updates every time an attempt to update this property occurs.

(This does not replace the need for a more panel showing potential issues with integration not being able to update certain entities)