diff --git a/scripts/detect_missing_tool.py b/scripts/detect_missing_tool.py
index 2136c47..cf3ce11 100755
--- a/scripts/detect_missing_tool.py
+++ b/scripts/detect_missing_tool.py
@@ -4,9 +4,9 @@
 Outputs a system reminder suggesting the cli-tools skill when a missing tool is detected.
 """
 
-import sys
-import re
 import json
+import re
+import sys
 
 # Patterns that indicate a missing command/tool
 MISSING_PATTERNS = [
@@ -40,7 +40,7 @@ def main():
     # Read tool output from stdin (Claude Code passes tool result)
     try:
         input_data = sys.stdin.read()
-    except Exception:
+    except Exception:  # noqa: BLE001 - hook must fail open on any stdin read error
         return
 
     if not input_data: