[Core] Inherit RT Tags/Meta

libs/core/langchain_core/callbacks/base.py

@@ -922,7 +922,10 @@ class BaseCallbackManager(CallbackManagerMixin):
         """
         for tag in tags:
             self.tags.remove(tag)
-            self.inheritable_tags.remove(tag)
+            try:
+                self.inheritable_tags.remove(tag)
+            except ValueError:
+                pass
 
     def add_metadata(self, metadata: Dict[str, Any], inherit: bool = True) -> None:
         """Add metadata to the callback manager.

libs/core/langchain_core/callbacks/manager.py

@@ -2079,6 +2079,12 @@ def _configure(
         )
         for handler in local_handlers_:
             callback_manager.add_handler(handler, False)
+    if run_tree is not None:
+        if run_tree.tags is not None:
+            callback_manager.add_tags(run_tree.tags, False)
+        if run_tree.metadata is not None:
+            callback_manager.add_metadata(run_tree.metadata, False)
+
     if inheritable_tags or local_tags:
         callback_manager.add_tags(inheritable_tags or [])
         callback_manager.add_tags(local_tags or [], False)