Harness2 by Google Research – Recursive Agent Harnessing
Summary
Harness2 is a plug-and-play framework for recursive agent harnessing that connects two levels of recursion while keeping model weights fixed. It uses a Propose–Probe–Compose loop to refine task-specific harnesses and a harnessing-level reflector to improve future tasks, with benchmarks showing gains on multiple workloads. The article provides install, run, and experiment guidance, highlighting its potential to advance AI agent automation and tool integration.