import { DSQLClient } from '../dsql/client.js';
import type { KernelEvent } from '../types.js';
export interface NodeEnvironmentOptions {
    /** Path to the Unix domain socket. Defaults to /tmp/designlint-kernel.sock */
    socketPath?: string;
    /** Port for the HTTP fallback transport. Defaults to 7341. */
    httpPort?: number;
    /** Timeout in milliseconds for the initial connection attempt. Defaults to 5000. */
    connectTimeoutMs?: number;
}
/**
 * NodeEnvironment connects to a running DSR kernel from a Node.js process
 * (e.g. the design-lint CLI, LSP server, or MCP server).
 *
 * Connection strategy:
 *   1. Attempt Unix socket (low latency, same host)
 *   2. Fall back to HTTP if socket connection fails and httpPort is provided
 */
export declare class NodeEnvironment {
    #private;
    constructor(options?: NodeEnvironmentOptions);
    connect(): Promise<void>;
    disconnect(): Promise<void>;
    get dsql(): DSQLClient;
    onEvent(handler: (event: KernelEvent) => void): () => void;
}
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