QuestionQ58

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An agent extracts customer email addresses from support tickets and must check that each extracted value exactly matches the format "user@domain.com" without variations.

Which evaluator type is best suited to this validation requirement?

Explanation

A deterministic evaluator applies precise rules, such as a full-string pattern match, to accept or reject each value consistently. Strict format validation does not require semantic interpretation or an LLM judge. (docs.aws.amazon.com)

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