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Coding agent benchmarks flawed by hidden implementation details

A new paper identifies a significant issue in coding-agent benchmarks, termed 'specification-oracle gaps.' These gaps occur when benchmark tests rely on unstated implementation details, such as specific constant names or module paths, which are not present in the natural language task descriptions. The research developed a static audit tool to classify these dependencies, finding that a substantial portion of tasks in benchmarks like SWE-Milestone are affected. This deficiency can lead to agents failing tests due to missing implicit information, potentially skewing benchmark results and favoring agents that replicate upstream coding details. AI

IMPACT Highlights critical flaws in current coding agent benchmarks, potentially impacting the reliability of AI agent evaluations.

RANK_REASON The item is a research paper published on arXiv detailing a new methodology and findings related to AI benchmarks. [lever_c_demoted from research: ic=1 ai=1.0]

Read on arXiv cs.CL →

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Coding agent benchmarks flawed by hidden implementation details

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The item is a research paper published on arXiv detailing a new methodology and findings related to AI benchmarks. [lever_c_demoted from research: ic=1 ai=1.0]
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  1. arXiv cs.CL TIER_1 English(EN) · Fei Ding ·

    What the Specification Did Not Say: Specification-Oracle Gaps in Test-Graded Coding-Agent Benchmarks

    arXiv:2610.30635v1 Announce Type: new Abstract: Coding-agent benchmarks often describe a task in natural language but grade it with tests taken from the upstream project. Passing those tests can require information the description never states: a constant's name, a module path, a…