Comment 3 for bug 636193

So a registry is one approach.

Another is to scan the code for flag names that are used. I'm kindof partial to this simply because of the strong schemaless design.

Its important - vital in fact - that we stay low key and easy to use though ;)

Scopes are currently documented in the scope controller docstring; exposing that more accessibly (e.g. publish to the wiki automatically) would possibly be sufficient, or a registry w/introspection would be fine too.