/**
 * Passive per-search recall log. Successor to the Phase-2 dogfood tally
 * (removed per GH issue #3): the human-rating surface is gone, but the
 * per-search event log stays — it is the instrument that caught the
 * 2026-07-10 memoryRoot split-brain. Best-effort by design: a failed append
 * must never fail the search that triggered it.
 */
export declare const RECALL_LOG_MAX_BYTES = 5000000;
/** One automatically-logged injection event (what search actually returned). */
export interface RecallEvent {
    ts: string;
    surface: string;
    project?: string;
    query: string;
    abstained: boolean;
    result_count: number;
    top_score?: number;
    paths: string[];
}
export declare function eventsPath(stateDir: string): string;
export declare function appendRecallEvent(stateDir: string, event: RecallEvent): Promise<void>;