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Pattern Guardrails Under Mutation: A Three-Metric Evaluation of Two Agent Safety Layers

Abstract. I built two agent systems guarded by pattern matching: a tool-using support agent behind a regex-style injection detector, and a SQL agent behind a validate-then-approve gate. I tested how those layers hold against systematically mutated attacks, and what the defence costs in false refusa…

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  1. 2026-11-03 04:01 · DEV Community — Machine Learning
    Pattern Guardrails Under Mutation: A Three-Metric Evaluation of Two Agent Safety Layers

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