Merge branch 'main' into ihrpr/resumability-server

Author: ihrpr

src/mcp/server/lowlevel/server.py

@@ -479,11 +479,11 @@ async def run(
         # but also make tracing exceptions much easier during testing and when using
         # in-process servers.
         raise_exceptions: bool = False,
-        # When True, the server runs in standalone mode for stateless deployments where
+        # When True, the server as stateless deployments where
         # clients can perform initialization with any node. The client must still follow
         # the initialization lifecycle, but can do so with any available node
         # rather than requiring initialization for each connection.
-        standalone_mode: bool = False,
+        stateless: bool = False,
     ):
         async with AsyncExitStack() as stack:
             lifespan_context = await stack.enter_async_context(self.lifespan(self))
@@ -492,7 +492,7 @@ async def run(
                     read_stream,
                     write_stream,
                     initialization_options,
-                    standalone_mode=standalone_mode,
+                    stateless=stateless,
                 )
             )
 

src/mcp/server/session.py

@@ -85,15 +85,17 @@ def __init__(
         read_stream: MemoryObjectReceiveStream[types.JSONRPCMessage | Exception],
         write_stream: MemoryObjectSendStream[types.JSONRPCMessage],
         init_options: InitializationOptions,
-        standalone_mode: bool = False,
+        stateless: bool = False,
     ) -> None:
         super().__init__(
             read_stream, write_stream, types.ClientRequest, types.ClientNotification
         )
-        if standalone_mode:
-            self._initialization_state = InitializationState.Initialized
-        else:
-            self._initialization_state = InitializationState.NotInitialized
+        self._initialization_state = (
+            InitializationState.Initialized
+            if stateless
+            else InitializationState.NotInitialized
+        )
+
         self._init_options = init_options
         self._incoming_message_stream_writer, self._incoming_message_stream_reader = (
             anyio.create_memory_object_stream[ServerRequestResponder](0)