povtornyy-ekzamen-graf-s-refleksiey-i-do/SOLUTION.md

What was implemented
I added the missing dependencies to requirements.txt so the project can import the required modules.

Why it satisfies the requirement
The assignment explicitly asks for the packages langgraph and langchain-openai to be listed in requirements.txt. By including them, the environment will install these libraries and the code that imports them will run without ModuleNotFoundError.

Key code excerpts

# requirements.txt
langgraph
langchain-openai

This file now contains the two packages, matching the reviewer’s feedback.

Limitations
None – the change is straightforward and fully addresses the requested update.