diff --git a/python_modules/dagster/dagster/_core/ext/client.py b/python_modules/dagster/dagster/_core/ext/client.py
index 5d96312eb9eb7..6884b86385d94 100644
--- a/python_modules/dagster/dagster/_core/ext/client.py
+++ b/python_modules/dagster/dagster/_core/ext/client.py
@@ -34,3 +34,9 @@ class ExtMessageReader(ABC):
     @abstractmethod
     @contextmanager
     def read_messages(self, handler: "ExtMessageHandler") -> Iterator[ExtParams]: ...
+
+
+class ExtLogReader(ABC):
+    @abstractmethod
+    @contextmanager
+    def read_logs(self) -> Iterator[ExtParams]: ...