/better-harness Goes Open Source
Last week, we built Better Harness into Qoder Desktop. After launch, many users asked the same question: Will this be open source?
In its first three days, 100,000 people tried Better Harness.
The answer is yes.
Today, Better Harness is officially open source. You can find the project at github.com/QoderAI/better-harness.
Better Harness is an open-source analysis and continuous-improvement tool for coding-agent workflows. It connects the engineering practices, evaluation model, and runtime capabilities of Harness Engineering and Loop Engineering. The initial open-source release supported Claude Code, Codex, Qoder, and Cursor with one shared judgment model, although session analysis, evidence coverage, and output capabilities were not yet identical across the four hosts. Qoder, which had already been exercised repeatedly in real development workflows, was the most complete reference implementation at launch.