Struct McpSession 

pub struct McpSession { /* private fields */ }

An MCP session that manages the protocol lifecycle over a transport.

Implementations

impl McpSession

pub fn new(transport: Box<dyn Transport>) -> Self

Create a new session wrapping a transport.

pub async fn initialize(&mut self) -> Result<InitializeResult, SessionError>

Perform the MCP initialize handshake.

pub async fn list_tools(&mut self) -> Result<Vec<Tool>, SessionError>

List all tools, following pagination cursors.

pub async fn call_tool( &mut self, name: &str, arguments: Value, ) -> Result<CallToolResult, SessionError>

Call a specific tool.

pub async fn send_raw( &mut self, raw: &str, ) -> Result<Option<String>, TransportError>

Send a raw string message (bypasses all type checking). Used for fuzzing.

pub async fn send_request( &mut self, req: &JsonRpcRequest, ) -> Result<JsonRpcResponse, TransportError>

Send a typed request and get the raw JSON-RPC response.

pub fn server_capabilities(&self) -> Option<&ServerCapabilities>

Get the server capabilities (available after initialize).

pub fn server_info(&self) -> Option<&Implementation>

Get the server info (available after initialize).

pub fn protocol_version(&self) -> Option<&str>

Get the negotiated protocol version.

pub async fn shutdown(&mut self) -> Result<(), TransportError>

Shut down the session and underlying transport.

pub fn next_id(&self) -> i64

Get the next request ID.