export type SearchStrictness = 'recall' | 'balanced' | 'strict';
export interface SearchQualityOptions {
    threshold?: number;
    strict?: boolean;
    strictness?: SearchStrictness;
    disableRecency?: boolean;
    includeRelated?: boolean;
    topicPrefix?: string;
    minLexicalSupport?: boolean;
    diagnostics?: boolean;
}
export interface NormalizedSearchQualityOptions {
    threshold: number;
    strictness: SearchStrictness;
    disableRecency: boolean;
    includeRelated: boolean;
    topicPrefix?: string;
    minLexicalSupport: boolean;
    diagnostics: boolean;
}
export interface SearchHitDiagnostics {
    retrieval_source: string;
    vector_similarity: number | null;
    lexical_support: boolean;
    entity_support: boolean;
    scope_support: boolean;
    graph_source: 'primary' | 'expanded' | null;
    is_vector_only: boolean;
    /** Relevance confirmations only: never include scope or graph position here. */
    confirmation_signals: string[];
    /** Non-relevance metadata useful for diagnostics and audit output. */
    metadata_signals: string[];
    candidate_threshold_used: number;
}
export declare function normalizeSearchQualityOptions(options?: SearchQualityOptions): NormalizedSearchQualityOptions;
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