import type { HarneryInboxLimits, HarneryInboxRecordV1 } from "./contract.js";
export declare const HARNERY_INBOX_COMPACTION_PLAN_SCHEMA: "harnery.inbox-compaction-plan/v1";
export type HarneryRecipientLifecycle = "active" | "resumable" | "terminal";
export interface HarneryInboxCompactionPlan {
    schema: typeof HARNERY_INBOX_COMPACTION_PLAN_SCHEMA;
    recipient_instance_id: string;
    action: "none" | "compact-surfaced" | "prune-terminal";
    reason_code: "pending_protected" | "active_recipient" | "surfaced_grace" | "terminal_grace" | "eligible";
    remove_record_count: number;
    retained_record_count: number;
    protected_pending_count: number;
    dry_run: true;
}
export declare function planInboxCompaction(input: {
    recipient_instance_id: string;
    records: readonly HarneryInboxRecordV1[];
    lifecycle: HarneryRecipientLifecycle;
    terminal_at?: string;
    now: Date;
    limits: HarneryInboxLimits;
}): HarneryInboxCompactionPlan;
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