Module protocol 

Structs

CallToolParams

Parameters for a tools/call request

CallToolResult

Result of a tools/call invocation

ClientInfo

Client identification sent during initialization

ContentPart

A content part within a tool result

InitializeParams

Parameters for the initialize request

InitializeResult

Result of a successful initialize response

JsonRpcError

JSON-RPC error object

JsonRpcRequest

Incoming JSON-RPC request from MCP client

JsonRpcResponse

Outgoing JSON-RPC response to MCP client

ServerCapabilities

Server capability declarations

ServerInfo

Server identification

ToolDefinition

Tool definition exposed via tools/list

ToolsCapability

Marker type indicating the server supports MCP tools

ToolsListResult

Result of a tools/list call

Constants

INTERNAL_ERROR

JSON-RPC internal error

INVALID_PARAMS

JSON-RPC invalid parameters

INVALID_REQUEST

JSON-RPC invalid request (e.g. wrong protocol version)

METHOD_NOT_FOUND

JSON-RPC method not found

PARSE_ERROR

JSON-RPC parse error: invalid JSON received

PROTOCOL_VERSION

MCP protocol version supported by this server

SERVER_NAME

Server name reported during MCP handshake

SERVER_VERSION

Server version reported during MCP handshake