/**
 * Usage data — wraps `codexbar usage` for every agent in
 * `config.agents.definitions` that has a `usage` block configured. The
 * orchestrator's dispatcher consumes the per-agent snapshot to gate work by
 * `orchestrator.sessionLimitPercentage`. There is no CLI surface for usage —
 * `codexbar` itself is the user-facing inspection tool.
 */
import type { ResolvedConfig } from "./config.ts";
interface NormalizedUsage {
    session: number | null;
    sessionEndDuration: number | null;
    weekly: number | null;
    weekEndDuration: number | null;
    /** Set when the snapshot is fail-closed because codexbar could not be read. */
    unavailableReason?: string;
}
export type UsageByAgent = Record<string, NormalizedUsage>;
/**
 * Synthetic snapshot used when codexbar can't be read for a agent. Both
 * window fractions are pinned to Infinity so the dispatcher's
 * `session * 100 > sessionLimitPercentage` check fires at every legal
 * threshold — `sessionLimitPercentage: 100` would otherwise accept
 * `session: 1` (100 > 100 is false), reopening the very gate this entry
 * exists to close.
 */
export declare const EXHAUSTED_USAGE: NormalizedUsage;
export declare function gatedAgents(config: ResolvedConfig): string[];
export declare function getUsageByAgent(config: ResolvedConfig, signal?: AbortSignal): Promise<UsageByAgent>;
export {};
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