#harness
2 articles on this topic.
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Why Browser Use's Founder Just Open-Sourced an Anti-Framework
Gregor Zunic spent two years building Browser Use into the default browser framework for AI agents. In April 2026 he open-sourced Browser Harness — the thing that replaces it. Inside the founder's pivot from framework to harness, and what it says about where AI tooling is heading.
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Harnesses, Not Frameworks — The New Shape of AI Tools
Greg Zunic just open-sourced Browser Harness. It's the same pattern as Claude Code and Codex: strip the framework, hand the LLM raw tools, let it figure things out. Why the harness is replacing the framework — and what it runs on.