[Tb] Help with #last in rule/agent

>I'm trying to create an attribute which will record the last child
>or descendant of a given container, or alternately create an agent
>that collects the last descendant/child of specified containers.

You're confusing queries (which begin with # and ask questions) with
export elements.

One way to do what you want might be something like the following.

a) make an agent that picks off the last note in your target container

        Agent Name: MyAgent
        Query: #last(MyFavoriteThings,1)

b) MyAgent can get the name of its child

        Rule: MyAttribute=^ getFor(child,Name)

c) You can grab ^getFor(MyAgent,MyAttribute) where you need it.

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