xmcp/dist/runtime/utils/mcp-middleware.d.ts

The TypeScript MCP framework

import type { McpServer } from "@modelcontextprotocol/server";
import type { McpMiddleware, McpToolMetadata } from "@/types/mcp-middleware";
import { type McpToolHandler } from "./transformers/tool";
export declare function normalizeMcpMiddleware(value: unknown): McpMiddleware[];
/** Tool middleware stays inside SDK input/output validation and tool-error handling. */
export declare function wrapToolWithMiddleware(handler: McpToolHandler, metadata: McpToolMetadata, middleware: readonly McpMiddleware[]): McpToolHandler;
/**
 * McpServer installs listing/completion handlers lazily during registration and
 * has no public handler getter. Decorate that public registration seam only
 * while registering components, then restore it even if registration fails.
 * This retains SDK catalog/URI/completion behavior and runs the chain once,
 * including ResourceTemplate list/read/complete callbacks and generated UI resources.
 */
export declare function registerWithMcpMiddleware(server: McpServer, middleware: readonly McpMiddleware[], register: () => void): void;