/**
 * JSON line protocol over Unix socket.
 *
 * Wire format: one JSON object per line.
 * Request : { id: string, method: string, params: object }
 * Response: { id: string, ok: true, data: any } | { id: string, ok: false, error: {code, message, details?} }
 */
import { type Interface } from 'node:readline';
import type { Socket } from 'node:net';
import { CloakError } from '../errors.js';
export type RpcRequest = {
    id: string;
    method: string;
    params?: Record<string, unknown>;
};
export type RpcResponseOk = {
    id: string;
    ok: true;
    data: unknown;
};
export type RpcResponseErr = {
    id: string;
    ok: false;
    error: ReturnType<CloakError['toJSON']>;
};
export type RpcResponse = RpcResponseOk | RpcResponseErr;
export declare function send(sock: Socket, msg: RpcRequest | RpcResponse): boolean;
export declare function readLines(sock: Socket): Interface;
export declare function nextId(): string;
export declare function makeError(id: string, err: unknown): RpcResponseErr;
export declare function makeOk(id: string, data: unknown): RpcResponseOk;
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