export interface SpawnedChild {
    unref?: () => void;
    on?: (event: string, cb: (...args: unknown[]) => void) => void;
}
export type DetachSpawn = (command: string, args: string[], options: {
    detached: boolean;
    stdio: "ignore";
}) => SpawnedChild;
export interface HeadlessTriggerOptions {
    cwd: string;
    argv: string[];
    cliPath: string;
    sessionId: string;
    spawn?: DetachSpawn;
    modeOverride?: "on" | "off";
}
export declare function isHeadless(argv: string[]): boolean;
export declare function triggerHeadlessReview(opts: HeadlessTriggerOptions): {
    triggered: boolean;
    reason?: string;
};