import type { TraceEntry, TraceMode } from './types.js';
export declare class TraceWriter {
    private mode;
    private tracesDir;
    private initialized;
    constructor();
    getMode(): TraceMode;
    getTracesDir(): string;
    append(entry: TraceEntry): Promise<void>;
    listDays(): Promise<string[]>;
    readDay(day: string, limit?: number): Promise<TraceEntry[]>;
    findById(id: string, lookbackDays?: number): Promise<TraceEntry | undefined>;
    private ensureInit;
}
export declare function getTraceWriter(): TraceWriter;