Prints the project's current coherence level and what the next rung requires.
$ mix cohere
Levels: 1 static guidance, 2 derived map, 3 checked intent cards, 4 governed verbs / runtime verification, 5 delivered context (packets).
Registered derived artifacts (config :cohere, derived:) count toward
the L2 rung — they are the map's discipline applied to other committed
outputs — and are listed with their freshness below the ladder.