one-way-door

# /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. `dcg` guards destructive **commands** at the shell boundary. This guards destructive **decisions** at the judgment boundary, before any command exists. ## Modes | Trigger phrases | Mode | Entry point | |---|---|---| | "is this a one-way door", "can we undo this", "classify this decision" | classify | the four layers below | | "should I just decide this", "auto-decide the rest" | gate a batch | classify each, act only on `two-way` | | "the models disagree with me", "both reviewers say I'm wrong...