/**
 * Payload and causation validation shared by the durable application
 * primitives (the command mailbox, WFT-84, and the delivery outbox, WFT-85).
 *
 * Both primitives carry the same inline-or-reference payload and the same
 * causal metadata, bound to the same content digest, so the checks are written
 * once and bound to each primitive's own validation error class.
 *
 * @module core/application-primitive-payload
 */
import { type ApplicationValidationErrorClass } from './application-primitive-guards.ts';
import type { ApplicationCommandCausation, ApplicationCommandPayload } from './mailbox-types.ts';
/** Maximum bytes in a content-addressed payload reference. */
export declare const MAX_APPLICATION_PAYLOAD_REFERENCE_BYTES = 2048;
/** A validated payload with its digest. */
export type ValidatedPayload = {
    readonly payload: ApplicationCommandPayload;
    readonly digest: string;
};
/** The validator set produced by {@link createPayloadValidators}. */
export type PayloadValidators = {
    readonly validatePayload: (payload: unknown, maxInlinePayloadBytes: number) => Promise<ValidatedPayload>;
    readonly validateCausation: (causation: ApplicationCommandCausation | undefined) => ApplicationCommandCausation | undefined;
};
/**
 * Bind the shared payload validators to one primitive's validation error
 * class.
 */
export declare function createPayloadValidators(ValidationError: ApplicationValidationErrorClass): PayloadValidators;