diff --git a/src/openjarvis/agents/native_react.py b/src/openjarvis/agents/native_react.py
index bec88754..cfcc5023 100644
--- a/src/openjarvis/agents/native_react.py
+++ b/src/openjarvis/agents/native_react.py
@@ -109,7 +109,11 @@ class NativeReActAgent(ToolUsingAgent):
 
         all_tool_results: list[ToolResult] = []
         turns = 0
-        total_usage: dict[str, int] = {"prompt_tokens": 0, "completion_tokens": 0, "total_tokens": 0}
+        total_usage: dict[str, int] = {
+            "prompt_tokens": 0,
+            "completion_tokens": 0,
+            "total_tokens": 0,
+        }
 
         for _turn in range(self._max_turns):
             turns += 1
diff --git a/src/openjarvis/agents/operative.py b/src/openjarvis/agents/operative.py
index e6a05270..7f88f840 100644
--- a/src/openjarvis/agents/operative.py
+++ b/src/openjarvis/agents/operative.py
@@ -104,7 +104,11 @@ class OperativeAgent(ToolUsingAgent):
         turns = 0
         content = ""
         state_stored_by_tool = False
-        total_usage: dict[str, int] = {"prompt_tokens": 0, "completion_tokens": 0, "total_tokens": 0}
+        total_usage: dict[str, int] = {
+            "prompt_tokens": 0,
+            "completion_tokens": 0,
+            "total_tokens": 0,
+        }
 
         for _turn in range(self._max_turns):
             turns += 1
diff --git a/src/openjarvis/agents/rlm.py b/src/openjarvis/agents/rlm.py
index 9efc99a0..0cc6e3a4 100644
--- a/src/openjarvis/agents/rlm.py
+++ b/src/openjarvis/agents/rlm.py
@@ -173,7 +173,11 @@ class RLMAgent(ToolUsingAgent):
 
         all_tool_results: list[ToolResult] = []
         turns = 0
-        total_usage: dict[str, int] = {"prompt_tokens": 0, "completion_tokens": 0, "total_tokens": 0}
+        total_usage: dict[str, int] = {
+            "prompt_tokens": 0,
+            "completion_tokens": 0,
+            "total_tokens": 0,
+        }
 
         for _turn in range(self._max_turns):
             turns += 1