import { type ChildProcess } from 'node:child_process';
import type { HostAdapter, HostWorkerLaunchProjection } from '@devflow-tools/sdk';
import type { WorkerCoordinationPaths, WorkerHandoff, WorkerLaunchRequest, WorkerTaskEnvelope } from './types.js';
export interface WorkerProcessResult {
    exitCode: number | null;
    signal: NodeJS.Signals | null;
    timedOut: boolean;
    cancelled: boolean;
    handoff?: WorkerHandoff;
}
export declare function createWorkerArtifacts(paths: WorkerCoordinationPaths, envelope: WorkerTaskEnvelope): void;
export declare function projectWorkerLaunch(adapter: HostAdapter, request: WorkerLaunchRequest): HostWorkerLaunchProjection;
export declare function launchWorker(adapter: HostAdapter, request: WorkerLaunchRequest, paths: WorkerCoordinationPaths, options?: {
    parentEnv?: NodeJS.ProcessEnv;
    onHeartbeat?: () => void;
}): {
    child: ChildProcess;
    completion: Promise<WorkerProcessResult>;
    cancel: () => void;
};
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