diff --git a/monkey/infection_monkey/i_master.py b/monkey/infection_monkey/i_master.py
new file mode 100644
index 000000000..b045941df
--- /dev/null
+++ b/monkey/infection_monkey/i_master.py
@@ -0,0 +1,27 @@
+import abc
+
+
+class IMaster(metaclass=abc.ABCMeta):
+    @abc.abstractmethod
+    def start(self) -> None:
+        """
+        With the help of the puppet, starts and instructs the Agent to
+        perform various actions like scanning or exploiting a specific host.
+        """
+        pass
+
+    @abc.abstractmethod
+    def terminate(self) -> None:
+        """
+        Effectively marks the Agent as dead, telling all actions being
+        performed by the Agent to stop.
+        """
+        pass
+
+    @abc.abstractmethod
+    def cleanup(self) -> None:
+        """
+        With the help of the puppet, instructs the Agent to cleanup whatever
+        is required since the Agent was killed.
+        """
+        pass