import type { DiscoveryConsumer, DiscoverySession } from "../types.js";
export declare const DRIFT_CONSUMER_ID = "discovery:drift-consumer";
export declare const DRIFT_CONSUMER_VERSION = "1.0.0";
export type DriftFinding = {
    kind: "added" | "removed" | "changed" | "unchanged";
    path: string;
    description: string;
};
export type DriftReport = {
    sessionA: {
        id: string;
        hash: string;
    };
    sessionB: {
        id: string;
        hash: string;
    };
    findings: DriftFinding[];
    summary: {
        added: number;
        removed: number;
        changed: number;
        unchanged: number;
    };
};
export interface DriftConsumerContext {
    sessionA: DiscoverySession;
    sessionB: DiscoverySession;
}
/**
 * Create a drift comparison consumer.
 *
 * Compares the canonical projections and findings of two DiscoverySessions
 * and reports added, removed, changed, and unchanged entries.
 */
export declare function createDriftConsumer(): DiscoveryConsumer<DriftConsumerContext, DriftReport>;