diff --git a/volc_limit_sync.py b/volc_limit_sync.py
index f1b968d..531dc9e 100644
--- a/volc_limit_sync.py
+++ b/volc_limit_sync.py
@@ -852,6 +852,12 @@ class DailyLimitHandler(CustomLogger):
 
         reserve = input_tokens + max_out
 
+        if DEBUG_MODE:
+            log(
+                f"🔍 Pre-reserve {data['model']}: input={int(input_tokens):,} + max_out={int(max_out):,} = reserve={int(reserve):,}",
+                level="DEBUG",
+            )
+
         blocked = _check_request_block(data["model"], reserve=reserve)
         if not blocked:
             return None