/**
 * Instance Coordinator
 *
 * Cross-process file lock coordination for limiting global process count.
 */
export declare class InstanceCoordinator {
    private maxGlobalProcesses;
    private lockFile;
    private instanceId;
    private currentProcessCount;
    constructor(maxGlobalProcesses?: number);
    /**
     * Try to acquire a global process slot.
     */
    tryAcquire(): Promise<boolean>;
    /**
     * Release a global process slot.
     */
    release(): void;
    /**
     * Release all slots for this instance (e.g., during shutdown).
     */
    releaseAll(): void;
    /**
     * Get global status across all instances.
     */
    getGlobalStatus(): {
        totalProcesses: number;
        maxProcesses: number;
        instanceCount: number;
        thisInstanceProcesses: number;
    };
    /**
     * Clean up stale entries.
     */
    cleanup(): void;
    /**
     * Update max global processes.
     */
    setMaxGlobalProcesses(max: number): void;
    /**
     * Read state from lock file.
     */
    private readState;
    /**
     * Write state to lock file.
     */
    private writeState;
}
/**
 * Create an instance coordinator with default configuration.
 */
export declare function createInstanceCoordinator(maxGlobalProcesses?: number): InstanceCoordinator;
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