diff --git a/examples/agent/deep_research_agent/deep_research_agent.py b/examples/agent/deep_research_agent/deep_research_agent.py
index 9c19945e90..5d6285cf26 100644
--- a/examples/agent/deep_research_agent/deep_research_agent.py
+++ b/examples/agent/deep_research_agent/deep_research_agent.py
@@ -970,7 +970,7 @@ async def _summarizing(self) -> Msg:
                 ensure_ascii=False,
             ),
         )
-        self.memory.add(summarize_result)
+        await self.memory.add(summarize_result)
         return summarize_result
 
     async def reflect_failure(self) -> ToolResponse:
diff --git a/src/agentscope/token/_openai_token_counter.py b/src/agentscope/token/_openai_token_counter.py
index 8fcf4e6f7a..d0d989cd35 100644
--- a/src/agentscope/token/_openai_token_counter.py
+++ b/src/agentscope/token/_openai_token_counter.py
@@ -155,7 +155,7 @@ def _calculate_tokens_for_tools(
             for key in properties.keys():
                 func_token_count += prop_key
                 p_name = key
-                p_type = properties[key]["type"]
+                p_type = properties[key].get("type", "")
                 p_desc = (
                     properties[key].get("description", "").removesuffix(".")
                 )