/**
 * The machine lanes of the alert policy (design
 * 2026-09-01-tier-aware-alert-policy § 13): the two statuses only the scan
 * writes, each spoken for by one registry row (`./registry`). The lane
 * arbitration's write type, the digest's read predicate and the asset
 * panel's grouping all derive from this pair, so a third lane reaches each
 * of them at once. Lives beside the registry because `PolicyRowMatch` is
 * typed on it; the webapp's status classifier re-exports it.
 */
export declare const MACHINE_LANE_STATUSES: readonly ["expected", "mitigated"];
export type MachineLaneStatus = (typeof MACHINE_LANE_STATUSES)[number];
/** Narrows a stored status to a machine lane — the read guard of every lane surface. */
export declare function isMachineLaneStatus(status: string): status is MachineLaneStatus;