Streaming issue with codeact call_model #17

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2026-02-16T07:16:31-05:00

yindo commented

2026-02-16 07:16:31 -05:00

Originally created by @hash3liZer on GitHub (Jul 21, 2025).

Hello, i am facing a weird issue with langgraph codeact approach. I've tried to include the whole codeact as a subagent in my project. The main goal and idea behind was to see how codeact works and to see the output on langsmith UI. However, there's a strange problem that i've faced after i migrated codeact as subagent.

As soon as i expand the call_model node on the langsmith UI. It stucks while streaming the response from the LLM. Note that the run keeps on running and i can see that in langsmith traces. The run works and finishes as well. But on the UI, it seems as it it is stuck and i can only see it after refreshing the page.

I've tried this both in dev and prod mode:

langgraph dev
langgraph up

Originally created by @hash3liZer on GitHub (Jul 21, 2025). Hello, i am facing a weird issue with langgraph codeact approach. I've tried to include the whole codeact as a subagent in my project. The main goal and idea behind was to see how codeact works and to see the output on langsmith UI. However, there's a strange problem that i've faced after i migrated codeact as subagent. As soon as i expand the `call_model` node on the langsmith UI. It stucks while streaming the response from the LLM. Note that the run keeps on running and i can see that in langsmith traces. The run works and finishes as well. But on the UI, it seems as it it is stuck and i can only see it after refreshing the page. I've tried this both in dev and prod mode: ``` langgraph dev langgraph up ```

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Reference: langchain-ai/langgraph-codeact#17