export interface HostAgentAdmissionConfig {
    createLockRoot?: boolean;
    lockRoot: string;
    maxActiveAgents?: number;
    minDiskFreeGb?: number;
    minMemoryFreePercent?: number;
}
interface HostAdmissionProbes {
    activeAgentCount?: () => number;
    diskFreeGb?: (path: string) => number;
    memoryFreePercent?: () => number;
}
export declare function resolveHostAgentAdmissionConfig(source?: NodeJS.ProcessEnv, homeDirectory?: string): HostAgentAdmissionConfig | undefined;
export declare function isAgentProcess(command: string, args: string): boolean;
export declare function countRecognizedHostAgents(rows: string): number;
export declare function activeHostAgentCount(): number;
export declare function hostDiskFreeGb(path?: string): number;
export declare function hostMemoryFreePercent(): number;
export declare function assertHostAgentHeadroom(config: HostAgentAdmissionConfig, probes?: HostAdmissionProbes): void;
export declare function acquireHostAgentLaunchLock(config: HostAgentAdmissionConfig, options?: {
    isPidAlive?: (pid: number) => boolean;
    ownerPid?: number;
}): () => void;
export {};