import type { UnderstandingCandidate, UnderstandingReviewResult } from './types.js';
export declare function extractExplicitUnderstandingCandidates(userContent: string): UnderstandingCandidate[];
export declare function extractHighSignalUnderstandingCandidates(userContent: string): UnderstandingCandidate[];
export declare class UserUnderstandingService {
    reviewTurn(params: {
        userContent: string;
        assistantContent: string;
        sessionKey?: string;
        turnId?: string;
        workspaceId?: string;
        projectId?: string;
        correctionTargetRecordIds?: string[];
    }): Promise<UnderstandingReviewResult>;
    applyCandidates(candidates: UnderstandingCandidate[], context: {
        sessionKey?: string;
        workspaceId?: string;
        projectId?: string;
        sourceItemId?: string;
        sourceItemIds?: string[];
        sourceText?: string;
        source?: {
            provider?: string;
            sourceInstanceId?: string;
        };
        evidenceIds?: string[];
        reviewSource?: 'turn' | 'background';
        supersedesRecordIds?: string[];
    }): Promise<Omit<UnderstandingReviewResult, 'sourceItemId'>>;
}