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+# README.md
+# LangGraph Code Review Agent
+
+## Description
+
+This repository contains a **LangGraph** implementation that performs automated code reviews for a given Python function. The agent:
+
+1. Generates an initial draft review.
+2. Critiques the draft using four criteria (PEP8, type hints, edge cases, naming).
+3. If the review is not satisfactory, rewrites the weak part up to a maximum number of rounds.
+
+The demo function `sort_numbers` is used in the CLI example.
+
+## How to run
+
+```bash
+# Install dependencies
+pip install -r requirements.txt
+
+# Run the demo
+python main.py
+```
+
+The script will print the final state of the review process.
+
+## Requirements
+
+- Python 3.10+
+- LangGraph
+- LangChain OpenAI
+- python-dotenv (for optional API key handling)
+
+## License
+
+MIT