Harness

DeepSeek Harness team open-sources MIT-licensed Super-agent that fixes bugs, opens PRs: DeepSeek's Harness team released an MIT-licensed Super-agent prototype. A resident Router dispatches work to isolated Workers that react to GitHub and chat events, fix bugs and open PRs.

AI & Open Source • Pandaily

Tsinghua and Zhipu's HarnessPro lets agents rewrite their own harness, cutting task cost 26.1%: HarnessPro, from Tsinghua, Zhipu and partners, lets agents study their own runs and rewrite their harness without reference answers. It raised pass rates by 2 points and cut cost per task by 26.1%.

AI Agents • Pandaily

Coding-agent harness swaps barely change pass rates but can triple cost, study finds: A controlled study found that switching coding-agent harnesses such as Claude Code, OpenCode or mini-SWE-agent barely changed pass rates versus rerunning the same setup, while cost per task could triple. The higher cost was driven mainly by system prompts resent at every step.

AI Research • The Decoder