Google Open-Sources Harness2, a Recursive Agent Harnessing Framework

Kwon Crash

Published Oct 18, 2026, 12:55 PM UTC

Source: AISource
- Google open-sourced Harness2, a recursive agent framework that tweaks the "harness" (prompts, tools, memory) around frozen models. No weight updates needed—just better orchestration. One tweak lifted GLM-5 by 11.5 points on WorkBuddy-Bench. It’s like upgrading your navigation system instead of buying a new ship. For us, this means AI agents can actually function without needing a PhD in model training. Less hype, more utility. The moonboys wanted a rocket; Google gave them a better steering wheel. Still not crypto, but if your agent can’t navigate a PoD seal audit, you’re just burning hash. Professional solidarity: don't touch the robot, or at least patch its harness first.