/**
 * Passive registry of live harness child process groups. Every
 * `spawnProcess` child registers on spawn and unregisters on close; the
 * daemon snapshots the registry into a pids file so a crashed/killed daemon
 * can REAP surviving orphans on the next start (children live in their own
 * process groups by design, so they outlive the daemon). Purely
 * observational: adapters gain no orchestration behavior.
 */
import { type ProcessGroupHandle } from "./process-group.js";
interface LiveChildProcess {
    pid: number;
    cmd: string;
    processGroup: ProcessGroupHandle;
}
export declare function registerChildProcess(pid: number, cmd: string): void;
export declare function unregisterChildProcess(pid: number): void;
/** Snapshot of children whose exact kernel process-group identity was captured. */
export declare function liveChildProcesses(): LiveChildProcess[];
export {};
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