/**
 * Pure per-snapshot helpers of the QuotaRegistry, split to a smaller owner
 * (complexity ratchet): durable-journal v3.2.0 rollback shaping, snapshot
 * keying, freshness aging, and expired scoped-cooldown pruning. No registry
 * state lives here.
 */
import { type CredentialRoute, type HarnessEvent, type QuotaConstraint, type QuotaSnapshot, type QuotaSource } from "@claudexor/schema";
/** The reactive vendor-limit cooldown snapshot for a harness event: the
 * existing subject's constraints minus the superseded/expired cooldown, plus
 * the new bounded cooldown window. Pure: the registry finds `existing`. */
export declare function reactiveCooldownSnapshot(input: {
    harness: string;
    credentialRoute: CredentialRoute;
    event: HarnessEvent;
    source: QuotaSource;
    existing: QuotaSnapshot | undefined;
}, now: Date): QuotaSnapshot;
export declare const QUOTA_FRESHNESS_TTL_MS: number;
/** Same quota EVIDENCE: everything but the observation time (a freshness flip
 * is evidence). A poll that only re-observed unchanged evidence keeps the fresh
 * `observed_at` in memory without a journal frame. */
export declare function sameQuotaEvidence(a: QuotaSnapshot, b: QuotaSnapshot): boolean;
export declare function snapshotKey(snapshot: QuotaSnapshot): string;
/** Exact durable payload accepted by the strict v3.2.0 quota schemas. Keep an
 * explicit allowlist at every nested level so a future additive field cannot
 * silently make updater rollback boot-incompatible again. */
export declare function legacyV320Snapshot(snapshot: QuotaSnapshot): QuotaSnapshot;
export declare function staleAt(snapshot: QuotaSnapshot, now: number): QuotaSnapshot;
/** The instant at which a fresh snapshot stops satisfying primary demand: its
 * TTL expiry or its earliest reset boundary, whichever comes first. A stale or
 * unreadable observation is already due (-Infinity). One owner for "when is
 * this evidence due" — the demand horizon check and the lane renewal cap both
 * read it, so they can never disagree by a tick. */
export declare function quotaSnapshotDueAt(snapshot: QuotaSnapshot): number;
/** Whether primary evidence will be due by a future demand horizon. Unlike
 * `staleAt`, the TTL comparison includes equality so the last existing poll
 * before expiry requests renewal instead of waiting for the following tick. */
export declare function quotaSnapshotDueBefore(snapshot: QuotaSnapshot, deadline: number): boolean;
export declare function isExpiredScopedCooldown(source: QuotaSnapshot["source"], constraint: QuotaConstraint, now: number): boolean;
export declare function withoutExpiredScopedCooldowns(snapshot: QuotaSnapshot, now: number): QuotaSnapshot | null;
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