diff --git a/src/interface.jl b/src/interface.jl
index 27c194a..89859f8 100644
--- a/src/interface.jl
+++ b/src/interface.jl
@@ -12,7 +12,7 @@ using JSON3, DataStructures
 @kwdef mutable struct agent
     availableRole=["system", "user", "assistant"]
     sessionId::Int= 1
-    maxUserMsg::Int= 10
+    maxUserMsg::Int= 5
 
     """ Dict(Role=> Content)  ;   Role can be system, user, assistant
       Example: