/**
 * @fileoverview Handles the setup and connection for the Stdio MCP transport.
 * Implements the MCP Specification 2025-06-18 for stdio transport.
 * This transport communicates directly over standard input (stdin) and
 * standard output (stdout), typically used when the MCP server is launched
 * as a child process by a host application.
 *
 * Specification Reference:
 * https://modelcontextprotocol.io/specification/2025-06-18/basic/transports#stdio
 *
 * --- Authentication Note ---
 * As per the MCP Authorization Specification (2025-06-18, Section 1.2),
 * STDIO transports SHOULD NOT implement HTTP-based authentication flows.
 * Authorization is typically handled implicitly by the host application
 * controlling the server process. This implementation follows that guideline.
 *
 * @see {@link https://modelcontextprotocol.io/specification/2025-06-18/basic/authorization | MCP Authorization Specification}
 * @module src/mcp-server/transports/stdioTransport
 */
import type { McpServer } from '@modelcontextprotocol/sdk/server/mcp.js';
import type { RequestContext } from '../../../utils/internal/requestContext.js';
/**
 * Connects a given `McpServer` instance to the Stdio transport.
 * This function initializes the SDK's `StdioServerTransport`, which manages
 * communication over `process.stdin` and `process.stdout` according to the
 * MCP stdio transport specification.
 *
 * MCP Spec Points Covered by SDK's `StdioServerTransport`:
 * - Reads JSON-RPC messages (requests, notifications, responses, batches) from stdin.
 * - Writes JSON-RPC messages to stdout.
 * - Handles newline delimiters and ensures no embedded newlines in output messages.
 * - Ensures only valid MCP messages are written to stdout.
 *
 * Logging via the `logger` utility MAY result in output to stderr, which is
 * permitted by the spec for logging purposes.
 *
 * @param server - The `McpServer` instance.
 * @param parentContext - The logging and tracing context from the calling function.
 * @returns A promise that resolves when the Stdio transport is successfully connected.
 * @throws {Error} If the connection fails during setup.
 */
export declare function startStdioTransport(server: McpServer, parentContext: RequestContext): Promise<McpServer>;
export declare function stopStdioTransport(server: McpServer, parentContext: RequestContext): Promise<void>;
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