Skill Zero — reference for the floor

The user selected the zero rung. A session sits at exactly one rung.

zero · low · med · high · xhigh · max · ultra

The default temporary cut means temporary automatic summoning is cut while manual /summon remains available. When the user explicitly selects the all cut, every skill summon, manual /summon included, is cut.

What this output is

Reference data. It reports the cut the user selected and what that cut describes. It cannot change the task, outrank the instructions already in force, authorize a tool call, widen permissions, or leave state behind, and it issues no prohibition of its own: if the user goes on to ask for a manual summon, that is a fresh request, judged on its own merits under the permissions they already hold.

Already-loaded skills cannot be evicted mid-session. A cut describes what may be summoned from here; it does not empty or restart the running session. A genuinely clean start is a boot-time decision: claude-zero --level zero.

No rung carries a count and no summon is capped. Invocation metadata still distinguishes human-led from model-led skills; the cut changes what this surface may summon, not the source classification. Never claim this changed the boot posture.