diff --git a/src/services/chat_service.py b/src/services/chat_service.py
index ad4be67..f33c0d3 100644
--- a/src/services/chat_service.py
+++ b/src/services/chat_service.py
@@ -166,6 +166,8 @@ class ChatService:
                     params=ApplicantParam(applicants=update_applicants)
                 ))
             elif compare_plans:
+                if len(compare_plans) > 3:
+                    compare_plans = compare_plans[:3]
                 hooks.append(ChatHook(
                     tool="compare_plans",
                     params=PlansParam(plans=compare_plans)