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CheckerBench: Can Long-Horizon Agents Synthesize Static-Analysis Checkers?

CheckerBench is a benchmark for evaluating coding agents' ability to synthesize static-analysis checkers from defect specifications, including tasks derived from 300 CVEs across multiple repositories and language ecosystems. CheckerLab, an evaluation framework, measures diagnostic contrast, patch localization, and tool use, with results showing that current agents struggle to develop reliable checkers, achieving a maximum Pass@1 of 45.33%.

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PublishedOctober 6, 2026Hang He, Li Wang, Hao Chen
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This research highlights the challenges in developing reliable static-analysis checkers through coding agents, indicating that current models need significant improvements to achieve consistent performance in this complex task.

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