diff --git a/logsight/enterprise.py b/logsight/enterprise.py
index ceab760..a3adc8f 100644
--- a/logsight/enterprise.py
+++ b/logsight/enterprise.py
@@ -110,7 +110,9 @@ class AnomalyScore:
 def score_event(event: EnrichedLog, recent: list[EnrichedLog]) -> AnomalyScore:
     """Combine frequency and structural signals into a deterministic score."""
     template = event.template or extract_template(event.message)
-    same = sum(1 for item in recent if (item.template or extract_template(item.message)) == template)
+    same = sum(
+        1 for item in recent if (item.template or extract_template(item.message)) == template
+    )
     error_rate = sum(item.level in {"ERROR", "CRITICAL"} for item in recent) / max(len(recent), 1)
     rarity = 1.0 / (same + 1)
     severity = 1.0 if event.level in {"ERROR", "CRITICAL"} else 0.0
diff --git a/logsight/storage.py b/logsight/storage.py
index a22329e..5c1ca5b 100644
--- a/logsight/storage.py
+++ b/logsight/storage.py
@@ -36,7 +36,9 @@ def insert_events(self, events: list[dict[str, Any]]) -> None:
 
 
 class QdrantStore:
-    def __init__(self, base_url: str = "http://localhost:6333", collection: str = "logsight") -> None:
+    def __init__(
+        self, base_url: str = "http://localhost:6333", collection: str = "logsight"
+    ) -> None:
         self.base_url = base_url.rstrip("/")
         self.collection = collection
 
diff --git a/tests/test_enterprise.py b/tests/test_enterprise.py
index 0b65d71..0305840 100644
--- a/tests/test_enterprise.py
+++ b/tests/test_enterprise.py
@@ -1,6 +1,12 @@
 """Tests for enterprise observability primitives."""
 
-from logsight.enterprise import WebhookNotifier, enrich, extract_template, score_event, semantic_features
+from logsight.enterprise import (
+    WebhookNotifier,
+    enrich,
+    extract_template,
+    score_event,
+    semantic_features,
+)
 from logsight.parser import parse_line