🧠 DevAgent – A CLI Developer Assistant

DevAgent is a command-line developer assistant powered by Google Gemini and LangGraph, equipped with tool-calling support and memory capabilities. Just run the CLI and start asking technical questions or code help – as simple as chatting.

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🚀 Features

• ✨ Chat with Gemini 2.0 Flash from the terminal
• 🔧 Tool calling support (e.g., code analysis, documentation fetch)
• 💬 Memory support using LangGraph MemorySaver
• 🧠 Contextual responses with custom system prompt
• 🖼️ Beautiful terminal UI using rich

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📦 Installation

Requires Python 3.8+

1. Clone the repo

git clone https://github.com/your-username/devagent
cd devagent

2. Install dependencies

pip install -r requirements.txt

3. Install as a CLI tool

For development (recommended)

pip install -e .

For global use

pip install .

If you get permission errors:

pip install . --user
# or
sudo pip install .

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🔑 Environment Setup

The app requires a Google API Key for Gemini access.

You can either:

• Add it to your .env file as GOOGLE_API_KEY=your-key, or
• Let the CLI prompt you to enter it the first time you run it.

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🧪 Usage

Simply run:

devagent

You'll see a prompt like:

▌ Developer Assistant ▌ (type 'exit' to quit)

You >

Ask technical questions, request code, or trigger tools. Type exit to quit.

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📁 Project Structure

├── devagent/main.py # Entry point for the CLI tool ├── system_prompt/init.py # Custom system prompt ├── tools/ # LangChain tools folder contains multiple tools ├── requirements.txt # All dependencies ├── setup.py # Installable package config └── README.md # You're here

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🛠 Commands Summary

Command	Description
devagent	Starts the CLI assistant
pip install -e .	Installs CLI in development mode
pip install .	Installs CLI globally
exit / quit / q	Quit the assistant

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🤝 Contributing

Want to improve or add tools? Fork the repo and submit a pull request.

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📜 License

MIT License © 2025 Rohit Yadav