/one-way-door

Classify one pending decision as two-way (cheap to undo, may be auto-decided) or one-way (expensive or impossible to undo, always surfaced to the caller). Return the classification and stop. This skill decides who decides. It never decides the underlying question and it never performs the action.

Insight: an agent's confidence is uncorrelated with a decision's reversibility, so confidence is the wrong gate. Reversibility is a property of the decision itself, is knowable before acting, and can be declared in advance instead of inferred from how the question happened to be worded.

The failure mode this exists to prevent: an agent auto-approves an irreversible step because the surrounding batch of decisions was routine and the step read as one more item in the list. Dropped table, force-push over a colleague's work, rotated credential, published post. The batch is why it happens: nineteen two-way decisions train the reflex that answers the twentieth.