/**
 * Research Traceability — Bidirectional links between findings and specs.
 *
 * Maintains a reverse index: finding ID -> spec names[].
 * Updated on every spec save. Queryable for coverage and orphan detection.
 */
import type { AnySpec } from "../specs/types.js";
import type { ResearchFinding } from "./engine.js";
export interface TraceabilityIndex {
    findingToSpecs: Record<string, string[]>;
    specToFindings: Record<string, string[]>;
    updatedAt: string;
}
export declare class ResearchTraceability {
    private index;
    private indexPath;
    constructor(memoireDir: string);
    load(): Promise<void>;
    save(): Promise<void>;
    onSpecSaved(spec: AnySpec): Promise<void>;
    onSpecRemoved(specName: string): Promise<void>;
    getSpecsForFinding(findingId: string): string[];
    getFindingsForSpec(specName: string): string[];
    getOrphanedFindings(allFindings: ResearchFinding[]): ResearchFinding[];
    getCoverage(specNames: string[]): {
        covered: number;
        total: number;
        ratio: number;
    };
    getIndex(): TraceabilityIndex;
}