/**
 * JSON-RPC message validation utilities
 *
 * Why: Eliminates code duplication between http-transport.ts and mcp-server.ts
 * These functions validate JSON-RPC 2.0 message types used in MCP protocol.
 */
/**
 * Check if message is an initialize request
 */
export declare function isInitializeRequest(message: unknown): boolean;
/**
 * Check if message is a tool call request
 */
export declare function isToolCallRequest(message: unknown): boolean;
/**
 * Check if message is a tools/list request
 */
export declare function isToolsListRequest(message: unknown): boolean;
/**
 * Check if message is a valid JSON-RPC request object
 */
export declare function isJsonRpcRequest(message: unknown): boolean;
/**
 * Check if message is a valid JSON-RPC response object
 */
export declare function isJsonRpcResponse(message: unknown): boolean;
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