You need more consistency here: if the service is called ``CrashesExploitability`` then its url should be ``/crashes/exploitability`` (and not ``/exploitable``. Same goes with the implementation method, ``get_exploitability`` instead of ``get_exploitable``.  (Or the other way around, but we thought of this schema as being ``resource by aggregation``, so ``crashes by exploitability`` sounds better to me. )