Harness²

Harness²

Harness the agent. Then harness its self-improvement.

Product HuntOpen SourceLaunched Oct 20, 2026196#4 of the day

About Harness²

Harness² from Google Research is a plug-and-play recursive agent harnessing framework that lets LLM agents automatically evolve their execution harnesses (prompts, tools, memory) for open-world tasks—without ground-truth verifiers. Dual recursion: task-level Propose-Probe-Compose refinement + harnessing-level accumulation of reusable experience. Up to +11.5 points on professional benchmarks like WorkBuddy-Bench.

The person behind Harness²

  • Han Yu
    Maker
    Email not found yet
Harness²'s team page →

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