arXiv AI By Jingkun Luo, Da-Tian Peng

Success Is Not Self-Explanatory: Auditing Success Provenance in Agent Evaluation

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arXiv:2607. 24054v1 Announce Type: new Abstract: A correct answer can conceal why an agent succeeded.

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arXiv Machine Learning
Jul 31

Exposure is not manifestation: measurement target and output resolution jointly determine which behavioural-faithfulness evaluator wins

arXiv:2607. 09306v3 Announce Type: replace-cross Abstract: Behavioural auditing asks whether a language model behaves as it claims, but detection scores are reported without separating two targets: whether a reply was produced under a behaviour-inducing condition (exposure) and whether the behaviour surfaced in it (manifestation).

By Kwan Soo Shin
arXiv AI
Aug 28

Invocation-Level Reliability of Tool-Using Agents

The paper investigates the reliability of tool‑using agents, focusing on two failure modes: selecting the wrong tool and constructing incorrect arguments. It introduces a correct‑invocation rate metric to distinguish these errors and evaluates five open‑weight models on multi‑step tasks up to depth 8, finding that by depth 6 about 70% of a model’s clean‑context capability is lost due to earlier mistakes. The study reveals that exact‑match scoring against a fixed gold trajectory forces severity and recovery parameters to extreme values, and proposes a conditional‑on‑state scoring remedy that yields more realistic severity estimates.

By Afiya Noorain, Subhranshu Mohanty, Amritesh Banerjee, Abhijit Dasgupta