Swapnadip-Nandi/Agri-Assistance

# AgriAssist: A Reliable Multi-Agent System for Farmers 🌾 **An intelligent agricultural advisory system powered by Google Gemini, LangChain, and LangGraph** ## Overview AgriAssist is a production-ready multi-agent AI system designed to provide farmers with verified, localized agricultural advice. It combines: - **5 Google Gemini-based agents** (ADK framework) for domain-specific expertise - **1 LangChain-based RAG agent** for knowledge retrieval - **LangGraph orchestration** for intelligent workflow coordination - **Hallucination prevention** through fact-checking and citation enforcement - **Multilingual support** (English ↔ Hindi) using Helsinki-NLP models - **Comprehensive logging** with structured callbacks and event tracking --- ## System Architecture ``` ┌─────────────────────────────────────────────────────────────┐ │ FARMER INTERFACE │ │ (Hindi/English queries and responses) │ └────────────────────┬────────────────────────────────────────┘ │ ┌────────────────────▼────────────────────────────────────────┐ │ LangGraph Orchestrator │ │ (Coordinates all agents and workflows) │ └─────┬──────┬──────┬──────┬──────┬──────┬──────┬────────────┘ │ │ │ │ │ │ │ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ┌──────┬──────┬──────┬──────┬──────┬──────┬──────┐ │Router│ Crop │Fert. │Weath.│Market│ RAG │ Fact │ │Agent │Agent │Agent │Agent │Agent │Agent │Check │ └──────┴──────┴──────┴──────┴──────┴──────┴──────┘ ↓ ↓ ↓ ↓ ↓ ↓ ↓ [Google Gemini (ADK)] [LangChain] [Validation] ↓ ┌──────────┐ │ Chroma │ │ Vector DB│ └──────────┘ ↓ Knowledge Base (ICAR, KVK data) ``` --- ## Features ### ✅ Multi-Agent Architecture - **Router Agent**: Intent classification and workflow routing - **Crop Agent**: Soil & climate-based crop recommendations - **Fertilizer Agent**: NPK ratio and fertilizer suggesti …