import type { Agent } from '@deepseek-ai/dsh-agent';
export declare const replyReplayBlockContract: "assistant-delivery/reply-replay-block/v1";
export declare class ReplyReplayBlockedError extends Error {
    readonly operationId: string;
    readonly code: "reply-replay-blocked";
    constructor(operationId: string);
}
export interface ReplyReplayBlockedAttempt {
    readonly sequence: number;
    readonly operationId: string;
    readonly inputDigest: string;
    readonly observedAt: number;
    readonly blocked: true;
}
export interface ReplyReplayBlockSnapshot {
    readonly contract: typeof replyReplayBlockContract;
    readonly operationId: string;
    readonly maximumAttempts: number;
    readonly expiresAt: number;
    readonly status: 'active' | 'closed' | 'expired' | 'attempt-limit' | 'owner-unloaded';
    readonly invalidated: boolean;
    readonly attempts: readonly ReplyReplayBlockedAttempt[];
}
export interface ReplyReplayBlockHandle {
    readonly contract: typeof replyReplayBlockContract;
    snapshot(): ReplyReplayBlockSnapshot;
    close(): void;
}
export interface ReplyReplayBlockConfig {
    readonly operationId: string;
    readonly maximumAttempts: number;
    readonly expiresAt: number;
}
export interface ReplyReplayInput {
    readonly idempotencyKey: string;
    readonly text: string;
    readonly format?: 'markdown' | 'model-picker' | 'permission-picker' | 'plain';
    readonly modelPicker?: unknown;
    readonly permissionPicker?: unknown;
    readonly replyToEventId?: string;
}
/** Stable digest of the exact Delivery reply input observed at the fence. */
export declare function replyReplayInputDigest(input: ReplyReplayInput): string;
/**
 * Permanently fences Delivery replies for one exact Agent object. The WeakMap
 * tombstone intentionally survives handle close, expiry, attempt exhaustion,
 * and agent Context disposal so a later call never falls back to delivery.
 */
export declare function blockAgentRepliesForReplay(agent: Agent, config: ReplyReplayBlockConfig): ReplyReplayBlockHandle;
/** Called by the Service before binding lookup, Policy, adapter selection, or Outbox mutation. */
export declare function assertReplyReplayAllowed(agent: Agent | undefined, input: ReplyReplayInput): void;
//# sourceMappingURL=reply-replay.d.ts.map