calebthompson/cartographer — comment on commit 221c8f68ec3e0fffe0d21e5384d68ca5db07f85c
File: docs/spec/prototype.json line 4
By calebthompson:

Modifiers seem to be used only about half of the time. Possibly it is worth either not requiring them all the time or allowing them not to appear and treating that as an empty set.