feat: add ClientRequestContext type alias for client-side handlers (#1989)

src/mcp/shared/_context.py

@@ -0,0 +1,20 @@
+"""Request context for MCP handlers."""
+
+from dataclasses import dataclass
+from typing import Any, Generic
+
+from typing_extensions import TypeVar
+
+from mcp.shared.session import BaseSession
+from mcp.types import RequestId, RequestParamsMeta
+
+SessionT = TypeVar("SessionT", bound=BaseSession[Any, Any, Any, Any, Any])
+
+
+@dataclass(kw_only=True)
+class RequestContext(Generic[SessionT]):
+    """Common context for handling incoming requests."""
+
+    request_id: RequestId
+    meta: RequestParamsMeta | None
+    session: SessionT

src/mcp/shared/progress.py

@@ -5,7 +5,7 @@ from typing import Generic
 
 from pydantic import BaseModel
 
-from mcp.shared.context import RequestContext, SessionT
+from mcp.shared._context import RequestContext, SessionT
 from mcp.types import ProgressToken