When Retrieval Metrics Mislead: Measuring Policy Signal in Long-Horizon Tool-Use Agents

arXiv:2606.23937 · cs.CL, cs.AI, cs.LG · Submitted 2026-06-22 · Read on arXiv

cs.CL, cs.AI, cs.LG

Submitted: 2026-06-22

Updated: 2026-09-16

Comments: 19 pages, 3 figures. Accepted at the Lifelong Agents Workshop (LLA) at COLM 2026

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

Benchmark — 34× in this paper · explained in 2 episodes
Actor — 17× in this paper · explained in 3 episodes
Fine-Tuning — 15× in this paper · explained in 5 episodes
Ablation — 10× in this paper · explained in 1 episode
Accuracy — 8× in this paper · explained in 1 episode
RAG — 4× in this paper · explained in 3 episodes
Verification — 4× in this paper · explained in 2 episodes
Abstention — 3× in this paper · explained in 1 episode
Abstraction — 3× in this paper · explained in 1 episode
Alignment — 3× in this paper · explained in 1 episode
Embeddings — 3× in this paper · explained in 2 episodes
Robustness — 3× in this paper · explained in 5 episodes
Provenance — 2× in this paper · explained in 4 episodes
Verifier — 2× in this paper · explained in 2 episodes
Adaptation — 1× in this paper · explained in 1 episode
Agentic Workflows — 1× in this paper · explained in 1 episode
Benchmarking — 1× in this paper · explained in 3 episodes
Consistency — 1× in this paper · explained in 3 episodes
Decoupling — 1× in this paper · explained in 2 episodes
Distillation — 1× in this paper · explained in 2 episodes
International Conference on Learning Representations — 1× in this paper
Supervised Fine-Tuning (SFT) — 1× in this paper · explained in 8 episodes
Trace — 1× in this paper · explained in 2 episodes

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