HarnessLens improves average held-out performance by 7.6-13.6% while consuming substantially less evaluation budget than competing baselines across three agent harnesses and four benchmarks

Across three agent harnesses and four benchmarks, HarnessLens improves average held-out performance by 7.6-13.6% while consuming substantially less evaluation budget than competing baselines.

http://arxiv.org/abs/2608.27311v1