import type { Readable, Writable } from 'stream';
import type { JSONRPCMessage } from './types.js';
import { BaseTransport, type BaseTransportConfig } from './base-transport.js';
/**
 * Configuration for StdioTransport.
 */
export interface StdioTransportConfig extends BaseTransportConfig {
    /** Maximum message size in bytes (default: 10MB) */
    maxMessageSize?: number;
    /** Maximum buffer size in bytes (default: 20MB) */
    maxBufferSize?: number;
    /** Maximum header size in bytes (default: 8KB) */
    maxHeaderSize?: number;
    /** Use newline-delimited JSON instead of Content-Length framing */
    useNewlineDelimited?: boolean;
}
/**
 * StdioTransport handles JSON-RPC message framing over stdio streams.
 * Uses Content-Length header protocol for message boundaries.
 *
 * Adapted from Overwatch's MCPTransport for client-side usage.
 */
export declare class StdioTransport extends BaseTransport {
    private input;
    private output;
    private buffer;
    private contentLength;
    private readonly maxMessageSize;
    private readonly maxBufferSize;
    private readonly maxHeaderSize;
    private readonly useNewlineDelimited;
    private connected;
    constructor(input: Readable, output: Writable, config?: StdioTransportConfig);
    /**
     * Check if the transport is connected.
     */
    isConnected(): boolean;
    private setupInputHandler;
    private processBuffer;
    send(message: JSONRPCMessage, _signal?: AbortSignal): void;
    close(): void;
}
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