AI article
How I stop an LLM from hallucinating in production (RAG + entity-match + MCP)
Community description: How do you make an LLM answer questions about real-world entities — companies, people, records —...
Dev.to | Sep 12, 2026 | cavitnation
Automated excerpt
Rule 1 — Verbatim tool output, not model memory The model is never allowed to recall a fact about an entity. The model only ever sees records that provably belong to the queried entity. Why MCP for the tool layer Each data source is exposed as a typed Model Context Protocol (MCP) tool server. Fail closed — no verified record, no answer. MCP tool servers — a clean, testable, reusable boundary between model and data.
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