Server initialize response update to last spec (add title, description) (#1634)

src/mcp/server/lowlevel/server.py

@@ -139,6 +139,8 @@ class Server(Generic[LifespanResultT, RequestT]):
         self,
         name: str,
         version: str | None = None,
+        title: str | None = None,
+        description: str | None = None,
         instructions: str | None = None,
         website_url: str | None = None,
         icons: list[types.Icon] | None = None,
@@ -149,6 +151,8 @@ class Server(Generic[LifespanResultT, RequestT]):
     ):
         self.name = name
         self.version = version
+        self.title = title
+        self.description = description
         self.instructions = instructions
         self.website_url = website_url
         self.icons = icons
@@ -181,6 +185,8 @@ class Server(Generic[LifespanResultT, RequestT]):
         return InitializationOptions(
             server_name=self.name,
             server_version=self.version if self.version else pkg_version("mcp"),
+            title=self.title,
+            description=self.description,
             capabilities=self.get_capabilities(
                 notification_options or NotificationOptions(),
                 experimental_capabilities or {},