Validation scope
Validation should cover factual support, internal consistency, and action safety.
The exact checks depend on domain risk, but the decision outcome should be consistent and auditable.
In practice, this means validating the claims people will rely on, not just checking whether the answer sounds coherent.
Why prompt quality alone is not enough
Prompt improvements reduce some errors but do not eliminate uncertainty in generated outputs.
A validation layer catches risky responses when prompt tuning still leaves gaps.
This is especially important when the model is asked to summarize policies, answer support questions, or provide instructions with real operational consequences.
Operational benefit
Validation gives teams clear stop or review signals before output reaches customers.
That improves trust, lowers support load, and helps teams ship AI features with less risk.
It also makes quality decisions more repeatable because reviewers are working from shared standards instead of pure intuition.