Make DEFAULT_CLIENT_INFO public

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: jerome3o-anthropic

src/mcp/client/session.py

@@ -10,7 +10,7 @@
 from mcp.shared.session import BaseSession, RequestResponder
 from mcp.shared.version import SUPPORTED_PROTOCOL_VERSIONS
 
-_DEFAULT_CLIENT_INFO = types.Implementation(name="mcp", version="0.1.0")
+DEFAULT_CLIENT_INFO = types.Implementation(name="mcp", version="0.1.0")
 
 
 class SamplingFnT(Protocol):
@@ -108,7 +108,7 @@ def __init__(
             types.ServerNotification,
             read_timeout_seconds=read_timeout_seconds,
         )
-        self._client_info = client_info or _DEFAULT_CLIENT_INFO
+        self._client_info = client_info or DEFAULT_CLIENT_INFO
         self._sampling_callback = sampling_callback or _default_sampling_callback
         self._list_roots_callback = list_roots_callback or _default_list_roots_callback
         self._logging_callback = logging_callback or _default_logging_callback

tests/client/test_session.py

@@ -2,7 +2,7 @@
 import pytest
 
 import mcp.types as types
-from mcp.client.session import _DEFAULT_CLIENT_INFO, ClientSession
+from mcp.client.session import DEFAULT_CLIENT_INFO, ClientSession
 from mcp.shared.session import RequestResponder
 from mcp.types import (
     LATEST_PROTOCOL_VERSION,
@@ -238,4 +238,4 @@ async def mock_server():
         await session.initialize()
 
     # Assert that the default client info was sent
-    assert received_client_info == _DEFAULT_CLIENT_INFO
+    assert received_client_info == DEFAULT_CLIENT_INFO