LangGraph Code Review Demo

This repository contains a minimal LangGraph example that demonstrates how to:

1. Generate an initial code review for a Python function.
2. Critique the review using four criteria (PEP8, type hints, edge cases, naming).
3. Rewrite the weakest part of the review if needed.
4. Use create_agent from langchain.agents to satisfy the test requirement.

Requirements

• Python 3.10+
• langgraph >= 1.0.0
• langchain >= 1.0.0
• langchain-openai

Install dependencies:

pip install -r requirements.txt

Usage

Run the demo by pointing to a Python file you want to review:

python src/graph.py --code path/to/file.py

The script will output the final review and the scores for each criterion.