diff --git a/src/interface.jl b/src/interface.jl
index 1d64185..8274af7 100644
--- a/src/interface.jl
+++ b/src/interface.jl
@@ -1,6 +1,6 @@
 module interface
     
-export add_new_message
+export addNewMessage
 
 using JSON3, DataStructures, Dates, UUIDs, HTTP, Random
 using GeneralUtils
@@ -72,13 +72,13 @@ using ..type, ..util, ..llmfunction
             msgMeta,
             agentConfig,
             )
-  julia> YiemAgent.add_new_message(a, "user", "hello")
+  julia> YiemAgent.addNewMessage(a, "user", "hello")
   ```
 
   Signature\n
   -----
 """
-function add_new_message(a::T1, role::String, text::T2; 
+function addNewMessage(a::T1, role::String, text::T2; 
                       maximumMsg::Integer=20) where {T1<:agent, T2<:AbstractString}
   if role ∉ ["system", "user", "assistant"]   # guard against typo
     error("role is not in agent.availableRole $(@__LINE__)")
diff --git a/src/type.jl b/src/type.jl
index 2869885..d72ac72 100644
--- a/src/type.jl
+++ b/src/type.jl
@@ -188,7 +188,7 @@ end
             msgMeta,
             agentConfig,
             )
-  julia> YiemAgent.add_new_message(a, "user", "hello")
+  julia> YiemAgent.addNewMessage(a, "user", "hello")
   julia> YiemAgent.clearhistory(a)
   ```