/**
 * Type definitions for MCP protocol.
 */
import { EventEmitter } from "node:events";
export interface MCPMessage {
    jsonrpc: "2.0";
    id?: string | number;
    method?: string;
    params?: Record<string, unknown>;
}
export interface MCPRequest extends MCPMessage {
    method: string;
    params: Record<string, unknown>;
}
export interface MCPResponse extends MCPMessage {
    result?: unknown;
    error?: {
        code: number;
        message: string;
        data?: unknown;
    };
}
export interface MCPNotification extends MCPMessage {
    method: string;
    params: Record<string, unknown>;
}
export interface MCPResource {
    uri: string;
    mimeType?: string;
    text?: string;
}
export declare abstract class BaseTransport extends EventEmitter {
    abstract connect(): Promise<void>;
    abstract disconnect(): Promise<void>;
    abstract send(message: MCPMessage): Promise<void>;
}