What’s happening
- I created an Agent workflow using Agent Builder.
- As of Nov 11 (JST), the agent was correctly referencing chat history during conversations.
- However, starting today (Nov 13, first checked at 10:00 JST), the agent stopped referencing chat history — responses are clearly unaware of previous messages.
- When I checked the API logs in the Evaluate section, I found that past messages were no longer included in the request history.
Agent didn’t understand chat history
What I’ve tried
- Toggled “Include chat history” both on and off — the issue persisted in both cases.
- Tested using the [openai-chatkit-starter-app] ( ttps://github.com/openai/openai-chatkit-starter-app) to run the actual published workflow (not just in preview).
- The chat history still wasn’t included.
- Interestingly, when I tried the [HubSpot customer assistant] (ttps://www.hubspot.com/) featured on [OpenAI’s AgentKit page] (ttps://openai.com/ja-JP/index/introducing-agentkit/), it seemed to understand previous messages, suggesting that not all agents are affected.
Possible cause
- I suspect this might be a bug.
- Looking at the generated code from the Agents SDK, it seems like the
conversation_historymight be getting overwritten each time instead of being appended.- While this code might not be exactly what’s used internally, the behavior seems consistent with that hypothesis.
What I’d like to know
- Can others reproduce this issue in their environment?
- How can I report this to OpenAI or request a fix?
Apologies — since I’m a new member on the forum, I can’t include multiple links or more than one image yet. I’ve done my best to describe everything clearly despite that limitation.



