import { type HistoryMessage } from './history-message-transform.js';
export interface SessionSearchHit {
    role: HistoryMessage['role'];
    ts?: string;
    messageIdx: number;
    snippet: string;
}
export interface SessionSearchResult {
    sessionId: string;
    title: string;
    lastModified: number;
    hits: SessionSearchHit[];
    totalHits: number;
}
export interface SessionSearchResponse {
    query: string;
    results: SessionSearchResult[];
    truncated: boolean;
    scannedFiles: number;
    matchedFiles: number;
    durationMs: number;
}
/**
 * Search every session under `workDir` for `query`.
 *
 * - Case-insensitive substring match (no regex).
 * - Capped at `limit` total hits across all sessions; per-session capped at 10.
 * - `signal` (optional) can be aborted between files for cancellation.
 */
export declare function searchSessions(workDir: string, query: string, opts?: {
    limit?: number;
    signal?: AbortSignal;
}): SessionSearchResponse;