diff --git a/llmcore.py b/llmcore.py
index d6ef43e..c2c64f3 100644
--- a/llmcore.py
+++ b/llmcore.py
@@ -748,7 +748,7 @@ class ToolClient:
             remaining_text = re.sub(think_pattern, "", remaining_text, flags=re.DOTALL)
         
         tool_calls = []; json_strs = []; errors = []
-        tool_pattern = r"<(?:tool_use|tool_call)>((?:(?!<(?:tool_use|tool_call)>).){0,}?)</(?:tool_use|tool_call)>"}
+        tool_pattern = r"<(?:tool_use|tool_call)>((?:(?!<(?:tool_use|tool_call)>).){15,}?)</(?:tool_use|tool_call)>"}
         tool_all = re.findall(tool_pattern, remaining_text, re.DOTALL)
         
         if tool_all: