Google Open-Sources Harness2 Framework for Recursive Agent Harnessing
AI
MarkTechPost
Google Research released Harness2, an Apache‑2.0 licensed framework that rewrites an agent's harness at test time. A single refinement step using Harness2 improved GLM‑5’s score by 11.5 points on the WorkBuddy‑Bench benchmark without any weight updates.
Why it matters: It shows a way to boost agent performance at inference without retraining, useful for developers building AI systems.
