export type ExecErrorCode = 'auth' | 'quota' | 'rate-limited' | 'missing-binary' | 'no-runner' | 'budget' | 'runner-error' | 'timeout' | 'cancelled' | 'bad-frame' | 'unsafe' | 'unsupported';
export declare const FATAL_CODES: Set<ExecErrorCode>;
/** A turn that failed on a transient provider rate limit (rev 20). */
export interface RateLimitHit {
    /** The runner's own error text. */
    message: string;
    /** The provider's Retry-After hint, capped (provider-limit.ts). */
    retryAfterMs?: number;
    /** Retries the runtime's CLI already made itself (0 = count unknown);
     *  undefined when it made none. */
    vendorRetries?: number;
}
/** Runners put text they did not write themselves (a CLI's stdout, the
 *  model's final words) after this marker in an error message.
 *  execErrorCode classifies only what comes before it, so model output can
 *  never turn a failure into auth, quota or a rate limit. */
export declare const UNCLASSIFIED_MARKER = "\n[output below is not classified]\n";
/** The part of an error message execErrorCode classifies. */
export declare function classifiedText(message: string): string;
/** §3.4 code for a runner failure's text (anything but a missing binary). */
export declare function execErrorCode(err: unknown, fullMessage: string): {
    code: ExecErrorCode;
    rateLimit?: RateLimitHit;
};
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