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Output Validation

Reviewed 19 July 2026 Canonical definition Part of: Runtime Control & Guardrail Terms →

Output validation is the process of checking an agent's response against defined rules before it is returned to the user or passed to a downstream system. Checks may include content filtering, format verification, PII detection, and policy compliance.

§01 / QUESTIONSterm: Output Validation
Questions

Common questions.

What is Output Validation?

Output validation is the process of checking an agent's response against defined rules before it is returned to the user or passed to a downstream system.

How does Output Validation work?

Checks may include content filtering, format verification, PII detection, and policy compliance.

Which terms are related to Output Validation?

Closely related concepts include AI Guardrail Layer, Jailbreak (AI Agent), Agent Approval Workflow, Agent Context Isolation. Each is defined in the Prefactor glossary.

§02 / RELATEDnext: where this fits
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