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Main Authors: Michelakis, Panagiotis, Hadjiyiannis, Yiannis, Stamoulis, Dimitrios
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2509.20998
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author Michelakis, Panagiotis
Hadjiyiannis, Yiannis
Stamoulis, Dimitrios
author_facet Michelakis, Panagiotis
Hadjiyiannis, Yiannis
Stamoulis, Dimitrios
contents Evaluating AI agents that solve real-world tasks through function-call sequences remains an open challenge. Existing agentic benchmarks often reduce evaluation to a binary judgment of the final state, overlooking critical aspects such as safety, efficiency, and intermediate correctness. We propose a framework based on deterministic finite automata (DFAs) that encodes tasks as sets of valid tool-use paths, enabling principled assessment of agent behavior in diverse world models. Building on this foundation, we introduce CORE, a suite of five metrics, namely Path Correctness, Path Correctness - Kendall's tau Composite, Prefix Criticality, Harmful-Call Rate, and Efficiency, that quantify alignment with expected execution patterns. Across diverse worlds, our method reveals important performance differences between agents that would otherwise appear equivalent under traditional final-state evaluation schemes.
format Preprint
id arxiv_https___arxiv_org_abs_2509_20998
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle CORE: Full-Path Evaluation of LLM Agents Beyond Final State
Michelakis, Panagiotis
Hadjiyiannis, Yiannis
Stamoulis, Dimitrios
Artificial Intelligence
Evaluating AI agents that solve real-world tasks through function-call sequences remains an open challenge. Existing agentic benchmarks often reduce evaluation to a binary judgment of the final state, overlooking critical aspects such as safety, efficiency, and intermediate correctness. We propose a framework based on deterministic finite automata (DFAs) that encodes tasks as sets of valid tool-use paths, enabling principled assessment of agent behavior in diverse world models. Building on this foundation, we introduce CORE, a suite of five metrics, namely Path Correctness, Path Correctness - Kendall's tau Composite, Prefix Criticality, Harmful-Call Rate, and Efficiency, that quantify alignment with expected execution patterns. Across diverse worlds, our method reveals important performance differences between agents that would otherwise appear equivalent under traditional final-state evaluation schemes.
title CORE: Full-Path Evaluation of LLM Agents Beyond Final State
topic Artificial Intelligence
url https://arxiv.org/abs/2509.20998