import type { FeedbackEntry, TriageGroup } from '../../types/index.js';
/**
 * Compute a similarity score between two strings using Jaccard index on word sets.
 * Stop words are excluded. Returns a value in [0, 1].
 */
export declare function similarityScore(a: string, b: string): number;
/**
 * Group similar pending feedback entries into triage groups.
 * Two entries are grouped if their title similarity exceeds the threshold (default 0.5).
 */
export declare function triageFeedback(entries: FeedbackEntry[], threshold?: number): TriageGroup[];
/**
 * Format a list of triage groups as a markdown report.
 */
export declare function formatTriageReport(groups: TriageGroup[]): string;
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