[Submitted on 2 Dec 2025 (
[v1](https://arxiv.org/abs/2512.04123v1)), last revised 4 Jun 2026 (this version, v4)]# Title:Measuring Agents in Production
[View PDF](/pdf/2512.04123)
Abstract:LLM-based agents already operate in production across many industries, yet we lack an understanding of what technical methods make deployments successful. We present the first systematic study of Measuring Agents in Production, MAP, using first-hand data from agent developers. We conducted 20 case studies via in-depth interviews and surveyed 86 deployed systems practitioners across 26 domains. We investigate why organizations build agents, how they build them, how they evaluate them, and their top development challenges. Our study finds that production agents are built using simple, controllable approaches: 68% execute at most 10 steps before human intervention, 70% rely on prompting off-the-shelf models instead of weight tuning, and 74% depend primarily on human evaluation. Reliability (consistent correct behavior over time) remains the top development challenge, which practitioners currently address through systems-level design. MAP documents the current state of production agents, providing the research community with visibility into deployment realities and underexplored research avenues.
Submission history #
From: Melissa Pan [[view email](/show-email/a2a079d2/2512.04123)]
**Tue, 2 Dec 2025 16:45:10 UTC (337 KB)**
[[v1]](/abs/2512.04123v1)**Fri, 30 Jan 2026 22:21:00 UTC (345 KB)**
[[v2]](/abs/2512.04123v2)**Tue, 3 Feb 2026 18:06:26 UTC (345 KB)**
[[v3]](/abs/2512.04123v3)**[v4]** Thu, 4 Jun 2026 19:57:38 UTC (340 KB)
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