Meta description: RAG keeps your data in a vector database — but n8n AI workflows still ship retrieved chunks to OpenAI in plain text. Learn where n8n RAG pipelines leak PII, why Guardrails can't restore it, and how Privent tokenizes context before the LLM and detokenizes before the user sees the answer. Target keywords: privent, n8n, n8n RAG, n8n AI workflow, n8n workflow, n8n Guardrails, PII tokenization, data loss prevention When it comes to building AI agents and automations in ...