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Google Research has released the Harness2 framework, which lets agents improve their own harness while the model remains frozen. According to the same report, Gemini 3.5 Flash improved by 8.4 points on WorkBuddy-Bench and 7.5 points on JobBench, and improved on all 3 benchmarks; Skills and scripts accounted for about 50% of the edits, and removing skills would cost 5.3 points. This news currently comes from a single-source report, with no subsequent independent developments yet.
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Google Research releases Harness²: agents modify their own harnessDevelopments
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- Source:Philipp Schmid
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Oct 19
Philipp Schmid
Google Research releases Harness²: agents modify their own harness
Google Research has released the Harness² framework, which lets agents improve their own harness while the model remains frozen. Gemini 3.5 Flash gains 8.4 points on WorkBuddy-Bench and 7.5 points on JobBench, and improves on all 3 benchmarks. Skills and scripts account for about 50% of the edits; removing skills costs 5.3 points.