/**
 * Cost command — roll up $ spend and wall-clock duration across the local,
 * cross-agent session index.
 *
 * This is the read side of issue #323. Cost and duration are computed and
 * persisted at scan time (see src/lib/session/discover.ts + db.ts); this
 * command only queries and renders them — a pure SQLite/CLI win, no server,
 * no telemetry. Distinct from `agents view`, which reports live rate-limit /
 * quota status per agent and is left untouched.
 */
import type { Command } from 'commander';
/** Register `agents insights cost` under the insights parent. */
export declare function registerCostCommand(insightsCmd: Command): void;
