/**
 * Naming an issue.
 *
 * lookout finds issues and documents them. It used to also render each one as
 * an executable prompt and tell a session to spawn a subagent on it; that is no
 * longer its job, and the brief went with it. What remains is the one thing the
 * backlog and the UI both need: a short human name for a root cause.
 */
import type { FixCluster } from "./cluster.js";
/** Short name for one issue: what is wrong, and where. */
export declare function clusterLabel(c: FixCluster): string;