NAIF Agent Mutation Firewall: ALLOW, QUARANTINE and UNSUPPORTED explained
An AI coding agent proposes a small refactor. The tests pass. Before approving it, a reviewer still needs to know which behavior was compared, which inputs were covered, and what happened when the change exceeded the evaluator's scope. This is the review problem behind NAIF Agent Mutation Firewall (AMF) , the second component of NAIF Enterprise Assurance. RDR provides the analysis foundation; AMF…
The NAIF Agent Mutation Firewall (AMF) is a component of NAIF Enterprise Assurance that provides a mutation review gate for AI coding agents. It helps reviewers understand the behavior compared, inputs covered, and outcomes when changes exceed the evaluator's scope. The three possible outcomes are ALLOW, QUARANTINE, and UNSUPPORTED.
ALLOW indicates no observed behavior change within the admitted scope and configured input domain. QUARANTINE requires review of the change and any reported counterexample, while UNSUPPORTED means the evaluator cannot assess the change within its supported scope. The documented approach for institutional enquiries includes providing raw engine receipts, hashes, logs, timings, and counterexamples when found.
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