Seeking help with some merge message issues when LangGraph is called in parallel

OSS Product Help LangGraph
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10

First of all, thank you for carefully reviewing my messy code—this is likely due to the fact that I’m still a beginner. I also appreciate the standardized guidance you’ve provided; I’ve gained a great deal from it. Additionally, due to the time difference, it’s time for me to rest, so please forgive me if I don’t reply promptly.

  1. At that time, I used blank_node to route to two parallel nodes, but I overlooked that it might also concatenate the context.

  2. I had followed some online tutorials, so I chose operator.add without being aware of add_messages.

  3. Could this be the reason why my parallel calls failed?

  4. I was eager to find a solution and only uploaded a demo. I apologize for the inconvenience this caused you when reviewing my code.

…… Thank you again for your guidance.