/** Set/replace today's goal. Returns the date and stored goal. */
export declare function setDailyGoal(cwd: string, goal: string): {
    date: string;
    goal: string;
};
/** Append a timestamped entry (`- HH:MM — <text>`) to today's log. */
export declare function addLogEntry(cwd: string, text: string): {
    date: string;
    count: number;
};
/**
 * Delete day-files older than `keepDays` days; returns the removed dates.
 * Daily files already age out of context (only a breadcrumb is injected and
 * reads are recency-bounded), so this is disk housekeeping, not a context fix.
 */
export declare function pruneDailyLog(cwd: string, keepDays: number): string[];
/** Read today + the previous `days` days, newest-first, capped to ~4KB. */
export declare function readDailyLog(cwd: string, days: number): string;