LangGraph Code Review Agent

This repository implements a LangGraph agent that takes a Python function as input and produces a code review. The review is evaluated by a critic node that scores it on four criteria:

PEP8 compliance
Type hints
Edge case handling
Naming conventions

If the critic returns needs_revision the rewrite node improves the weakest part of the review. The process repeats up to max_rounds times.

The implementation uses only the technologies specified in the assignment: langgraph and langchain-ollama (or langchain-openai if you prefer). No vector database is used.

Installation

pip install -r requirements.txt

Demo

Run the demo with:

python main.py

It will review the example function sort_numbers and print the draft review, scores, and verdict.