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TestPrism exposes a gap in coding-agent test quality

huggingface.co by Han Li et al. Editor score 8/10

Across 300 tasks and 3,000 implementations, coding agents score 28.00% on a metric requiring tests to accept all valid solutions and reject invalid ones, versus 59.67% on single-reference success. TestHelix improves the stricter metric by 8.67–9.00 points, making this useful for agent evaluation.

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