/**
 * Copyright (c) 2026, Salesforce, Inc.,
 * All rights reserved.
 * For full license text, see the LICENSE.txt file
 */
import type { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
/**
 * Transport/dispatch bring-up stub: returns caller input verbatim, deliberately
 * bypassing the runTool/sanitizePaths/neutralizeControlChars chokepoint. Because
 * it reflects raw bytes it is registered only when GRAPHITI_ENABLE_ECHO === "1"
 * (see createServer) and is absent from the default published surface, pending
 * removal now that the sf_gql_* tools provide real coverage (W-23148363).
 */
export declare function registerEchoTool(server: McpServer): void;