import type { ResumablePayload } from "./codes.ts";
export interface PiSelfLaunchTarget {
    executable: string;
    argsPrefix: readonly string[];
}
export type ResumablePiAgentLaunchOutcome = {
    started: true;
    pid: number;
    completion: Promise<{
        code: number | null;
        signal: NodeJS.Signals | null;
    }>;
} | {
    started: false;
    reason: string;
};
export declare function buildResumablePiAgentWakePrompt(payload: ResumablePayload): string;
/** Launches one exact persisted Pi session; completion is observed only through process events. */
export declare function launchResumablePiAgent(options: {
    payload: ResumablePayload;
    target: PiSelfLaunchTarget;
    parentPid: number;
    parentSessionId: string;
    environment: NodeJS.ProcessEnv;
}): Promise<ResumablePiAgentLaunchOutcome>;
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