/**
 * @license
 * Copyright 2026 Steven Roussey <sroussey@gmail.com>
 * SPDX-License-Identifier: Apache-2.0
 */
/** Unix 128 + SIGINT. What a shell reports for Ctrl-C, and what Abort sends. */
export declare const SIGINT_EXIT_CODE = 130;
/** Unix 128 + SIGTERM. */
export declare const SIGTERM_EXIT_CODE = 143;
export interface RunSignalAbortOptions {
    readonly abort: () => void;
    /** Injected so tests can observe a second-signal force-exit. */
    readonly exit?: (code: number) => void;
}
/**
 * First SIGINT/SIGTERM cooperatively aborts the in-flight run. A second of
 * either insists, because adding a listener removes Node/Bun's default
 * "die immediately" action for that signal — without a force-exit, a hung
 * abort would leave the process unkillable except by SIGKILL.
 *
 * Does not exit on the first signal: the run still has to reject so the CLI
 * can report `run_end` aborted, and callers such as agent chat can swallow a
 * cancelled turn without ending the session.
 */
export declare function installRunSignalAbort(options: RunSignalAbortOptions): () => void;
/**
 * Runs `execute` with SIGINT/SIGTERM mapped onto `abort`, then detaches.
 */
export declare function runWithProcessSignalAbort<T>(abort: () => void, execute: () => Promise<T>): Promise<T>;
export declare function isAbortError(error: unknown): boolean;
export declare function runFailureExitCode(error: unknown): number;