import type { HarnessSubscriptionUsage } from '../types/HarnessSubscriptionUsage';
/**
 * Reads the current Codex subscription limit windows through its local app-server protocol.
 *
 * Codex versions without this optional protocol, API-key sessions, and transient account failures simply provide no
 * snapshot. Subscription usage is contextual UI information, so it must never make a coding prompt fail.
 *
 * @private internal utility of the OpenAI Codex runner
 */
export declare function getCodexSubscriptionUsage(codexCommand: string): Promise<HarnessSubscriptionUsage | undefined>;
/**
 * Converts the raw Codex app-server rate-limit response into Promptbook's harness-neutral subscription snapshot.
 *
 * Modern Codex versions can report several metered buckets, while older versions expose a single compatibility
 * bucket. In both cases every primary and secondary rolling window is preserved for the terminal dashboard.
 *
 * @private internal utility of the OpenAI Codex runner
 */
export declare function buildCodexSubscriptionUsage(response: unknown): HarnessSubscriptionUsage | undefined;