/** Minimal event emitter interface compatible with both Node EventEmitter and EventBus. */
interface EventLike {
    on(channel: string, handler: (data: unknown) => void): unknown;
}
export type { SavingsRecord } from "./storage.js";
export { readRecords } from "./storage.js";
export declare class SavingsTracker {
    private readonly sessionId;
    private readonly options;
    private pruned;
    private readonly projectCwd;
    constructor(events: EventLike, sessionId: number, options?: {
        cap?: number;
        logPath?: string;
    });
}
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