arXiv AI By Praphul Singh, Shanu Kumar, Akshat Agarwal, Ganesh Kumar

ContractEval: Query-Conditioned Execution Matching for Procedural Instruction Conformance

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ContractEval is a diagnostic framework that makes active obligations in procedural instructions explicit by representing them as query‑conditioned obligations. It matches these obligations against response or trace evidence, identifying omissions, wrong branches, ordering errors, extra actions, invariant breaches, and output‑contract violations as distinct conformance failures. In tests on audited procedural contracts, ContractEval detects and localizes all injected structural failures that output‑only and trace‑aware LLM judges miss, though it is not a compliance guarantee and remains calibration‑sensitive.

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