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AI Email Automation Agent
Autonomous LangChain agent that reads, categorizes, and replies to your Gmail.
Architecture Overview
A production-grade Python backend using LangGraph and the official Gmail API. This agent runs in the background, fetches new unread emails, uses a Large Language Model to categorize them (Support, Lead, Spam), and automatically drafts or sends highly personalized replies based on your company's knowledge base.
Folder Structure
├── agent/
│ ├── graph.py
│ ├── nodes/
│ │ └── email_tools.py
│ └── chains/
├── api/
│ └── server.py
├── docker-compose.yml
└── requirements.txtCode Preview
python
from langchain.agents import tool
from googleapiclient.discovery import build
@tool
def reply_to_email(thread_id: str, body: str) -> str:
"""Replies to a specific email thread."""
service = build('gmail', 'v1', credentials=creds)
message = create_message(body, thread_id)
service.users().messages().send(userId='me', body=message).execute()
return "Email sent successfully."Technical FAQ
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Included in the box
- Google OAuth2 Flow
- Vector Database RAG Integration
- Human-in-the-loop Approval UI
- Dockerized Celery Workers
Tech Stack
Python 3.11LangChainLangGraphGmail APIOpenAI