The AI technical support assistant is implemented in Telegram using the open-source langchain/langgraph libraries and the open-source Gemma3 large language model. The technical solution includes:
1. A document loading and indexing mechanism that takes into account their structure;
2. Building a knowledge base for hybrid search (based on keywords, semantic proximity, and graph search);
3. Creating a request processing graph based on an extended RAG to ensure the accuracy of responses and significantly reduce hallucinations;
4. Monitoring and evaluating request execution.