Prevent Infinite Tool Call Loop in Customer Support Agent (LangGraph)

AtmehEsraa commented 2 months ago

Checked other resources

[X] I added a very descriptive title to this issue.
[X] I searched the LangChain documentation with the integrated search.
[X] I used the GitHub search to find a similar question and didn't find it.
[X] I am sure that this is a bug in LangChain rather than my code.
[X] The bug is not resolved by updating to the latest stable version of LangChain (or the specific integration package).

Example Code

customer_support_llama3.zip

Error Message and Stack Trace (if applicable)

No response

Description

The customer support agent implemented using LangGraph encounters an issue where it enters an infinite loop when calling tools for information retrieval, such as flight status. The agent repeatedly calls the same tool without processing the output or providing a response to the user. This issue needs to be resolved to improve the efficiency and usability of the agent.

System Info

install langchain-core==0.2.9 langchain-community==0.2.5 langchain-experimental==0.0.61 \ langgraph==0.0.69

FraRici90 commented 2 months ago

I have the same issue. Even the most basic tools, sometimes loops.

Mustafa0503 commented 1 month ago

Hello! We're a group of students from the University of Toronto Scarborough, and we're looking to contribute to LangChain. We'd love the opportunity to investigate this bug further.

langchain-ai / langchain