I have the following one nit comment and one question:

  augment "/rt:routing/rt:ribs/rt:rib/"
    + "rt:routes/rt:route/rt:next-hop/rt:next-hop-options/"
    + "rt:next-hop-list/rt:next-hop-list/rt:next-hop"
  {
    description
      "Augment the multiple next hops with repair path.";
    uses repair-path;
  }

The description is slightly misleading. It is to agument a single next-hop in the next-hop-list, not "multiple next hops".

Shouldn't the repair path be applicable to static routes as well?