/**
 * How the runtime should react to a failed provider turn.
 *
 * - `crash`: the provider child exited mid-turn; retry the same item quickly.
 * - `transient`: the provider API failed in a way that usually clears on its
 *   own (5xx, overload, network/stream stalls, safeguard false positives);
 *   retry the same item on the same session with backoff.
 * - `rate_limited`: the provider refused for quota reasons; defer the item
 *   until the reported reset instant instead of failing it.
 * - `terminal`: nothing the runtime can do (auth, malformed request); fail
 *   the item and tell the requester.
 */
export type ProviderRetryClass = 'crash' | 'transient' | 'rate_limited' | 'terminal';
export declare function isProviderCrashError(error: unknown): boolean;
export declare function classifyProviderRetry(error: unknown): ProviderRetryClass;
/**
 * When the provider should be tried again after a rate limit. Reads an
 * explicit `resetsAt` property when the adapter attached one, otherwise parses
 * the human text Claude Code prints ("resets 2:10pm (Asia/Shanghai)",
 * "resets at 14:10", "try again in 30 seconds"). Falls back to a fixed delay.
 */
export declare function providerRateLimitResumeAt(error: unknown, now: Date): Date;
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