git:20260820.e9dacad to git:20260821.a3711ab

3 added, 5 removed. Audit A to A.

---

name: skill-zero

description: "Arm the zero rung: cut temporary automatic skills while manual summon remains available, or cut all skills."

disable-model-invocation: true

---

# Skill Zero

- Arm `zero` as the standing rung for this conversation. A session sits at exactly one rung.

- Print the seven-rung line, marking `zero` as armed:

+ Set the routing posture to `zero`. A session sits at exactly one rung.

```text

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

```

- State that the default `temporary` cut means no temporary automatic summoning and manual `/summon` still works. If the user supplied the exact argument `all`, cut all skill summons, including manual `/summon`, and say so.

+ The default `temporary` cut means temporary automatic summoning is cut while manual `/summon` remains available. If the user explicitly requested the `all` cut, all skill summons, including manual `/summon`, are cut.

- Already-loaded skills cannot be evicted mid-session. This instruction changes summoning behavior; it does not empty or restart the running session. Do not call the `summon` tool from this skill.

+ Already-loaded skills cannot be evicted mid-session. This setting changes summoning routing; it does not empty or restart the running session. Do not call the `summon` tool from this skill.

No rung carries a count and no summon is capped. Invocation metadata still distinguishes human-led Skill Heaven skills from model-led Skill Hell skills; zero changes whether either surface may summon, not the source classification.