Glossary
Guardrail
A guardrail is a control that constrains agent behavior—permissions, filters, budgets, or approval gates—enforced outside free-form model text.
Guardrail: A guardrail is a control that constrains agent behavior—permissions, filters, budgets, or approval gates—enforced outside free-form model text.
Definition
A guardrail constrains what an agent can see, say, or do—especially tool actions—using technical enforcement outside free-form prompts.
Examples
Allowlists, spend caps, sandboxes, output filters, and human approval gates.