/**
 * Normalized view of an account's `usage-cache.json` (written by Claude Code
 * itself, shared by the terminal and the IDE extension). Percentages are 0-100;
 * reset times and fetchedAt are epoch ms; retryAfter is non-null when the
 * account is actively rate-limited.
 */
export interface UsageSnapshot {
    fiveHourPct: number | null;
    sevenDayPct: number | null;
    fiveHourResetsAt: number | null;
    sevenDayResetsAt: number | null;
    retryAfter: number | null;
    fetchedAt: number | null;
    stale: boolean;
}
export declare function parseUsageCache(text: string): UsageSnapshot;
/** Read and parse the usage cache for a config dir, or null if absent/unreadable. */
export declare function readUsageForDir(configDir: string): UsageSnapshot | null;