# Deterministic guardrail

A guardrail that uses fixed rules or code so that it applies the same way every time.

Also called: Hard rule, Hard limit, Rule-based filter

Kind of: Guardrail

Related: Deterministic, Jailbreak

Source: https://redfinchadvisory.com/lexicon/deterministic-guardrail (version 1.0, changed 2026-10-21)