Most teams add one guardrail and think they are safe. But an agent can hallucinate in many different ways, and each guardrail only closes one: it invents data when it finds nothing, picks the wrong tool when two look alike, ignores your rules, bends soft limits, or skips hard requirements. Using a hotel booking agent as the running example, this talk pairs five common failures with five defenses: pull answers from a structured source so the agent computes instead of guessing, route to the right tool by meaning instead of keywords, keep rules in a database you change in seconds, let the agent fix its own near-misses, and hard-block the actions it must never take. You leave knowing which defense any given failure needs.

Outline: • Your AI Agent Hallucinates in 5 Different Ways • Grounded Retrieval with Graph Queries • Semantic Tool Routing • Steering Rules + STEER Messages • Hard Hooks That Cannot Be Bypassed • Full Layered Defense Test • Resources + Q&A