Deterministic read-only pre-execution gates raise τ²-bench airline success from 29.6% to 42.0% on gpt-4o-mini by blocking silent policy-violating tool writes, with the lift replicated on disjoint seeds.
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Reason Less, Verify More: Deterministic Gates Recover a Silent Policy-Violation Failure Mode in Tool-Using LLM Agents
Deterministic read-only pre-execution gates raise τ²-bench airline success from 29.6% to 42.0% on gpt-4o-mini by blocking silent policy-violating tool writes, with the lift replicated on disjoint seeds.