diff --git a/examples/servers/simple-auth/mcp_simple_auth/legacy_as_server.py b/examples/servers/simple-auth/mcp_simple_auth/legacy_as_server.py
index ab7773b5bb..4972919e3a 100644
--- a/examples/servers/simple-auth/mcp_simple_auth/legacy_as_server.py
+++ b/examples/servers/simple-auth/mcp_simple_auth/legacy_as_server.py
@@ -68,8 +68,6 @@ def create_simple_mcp_server(server_settings: ServerSettings, auth_settings: Sim
         debug=True,
         auth=mcp_auth_settings,
     )
-    # Store server settings for later use in run()
-    app._server_settings = server_settings  # type: ignore[attr-defined]
 
     @app.custom_route("/login", methods=["GET"])
     async def login_page_handler(request: Request) -> Response:
diff --git a/examples/servers/simple-auth/mcp_simple_auth/server.py b/examples/servers/simple-auth/mcp_simple_auth/server.py
index c53df6a550..1d2fcd89f7 100644
--- a/examples/servers/simple-auth/mcp_simple_auth/server.py
+++ b/examples/servers/simple-auth/mcp_simple_auth/server.py
@@ -74,8 +74,6 @@ def create_resource_server(settings: ResourceServerSettings) -> MCPServer:
             validate_token_resource=True,  # tokens must be reported as issued for server_url
         ),
     )
-    # Store settings for later use in run()
-    app._resource_server_settings = settings  # type: ignore[attr-defined]
 
     @app.tool()
     async def get_time() -> dict[str, Any]:
diff --git a/examples/servers/simple-streamablehttp-stateless/mcp_simple_streamablehttp_stateless/server.py b/examples/servers/simple-streamablehttp-stateless/mcp_simple_streamablehttp_stateless/server.py
index 575f8ab808..b7511aadbd 100644
--- a/examples/servers/simple-streamablehttp-stateless/mcp_simple_streamablehttp_stateless/server.py
+++ b/examples/servers/simple-streamablehttp-stateless/mcp_simple_streamablehttp_stateless/server.py
@@ -7,8 +7,6 @@
 from mcp.server import Server, ServerRequestContext
 from starlette.middleware.cors import CORSMiddleware
 
-logger = logging.getLogger(__name__)
-
 
 async def handle_list_tools(
     ctx: ServerRequestContext, params: types.PaginatedRequestParams | None
diff --git a/src/mcp/server/__main__.py b/src/mcp/server/__main__.py
index 4305b87e22..a3b464e0be 100644
--- a/src/mcp/server/__main__.py
+++ b/src/mcp/server/__main__.py
@@ -11,7 +11,6 @@
     warnings.simplefilter("ignore")
 
 logging.basicConfig(level=logging.INFO)
-logger = logging.getLogger("server")
 
 
 async def main() -> None:
diff --git a/src/mcp/server/stdio.py b/src/mcp/server/stdio.py
index de8bbae5f1..e4d991c344 100644
--- a/src/mcp/server/stdio.py
+++ b/src/mcp/server/stdio.py
@@ -45,7 +45,6 @@ async def run_server():
 
 @dataclass
 class _StreamClaim:
-    fd: int
     private_fd: int | None = None
 
 
@@ -116,7 +115,7 @@ def _claim_fd(
     """
     if not _is_backed_by_fd(stream, fd):
         return stream.buffer, None
-    claim = _StreamClaim(fd)
+    claim = _StreamClaim()
     with _claims_lock:
         if fd in _claims:
             raise RuntimeError(f"another stdio_server() in this process has already claimed fd {fd}")