ByteDance Seed Introduces HarnessDev: Agents Build and Evolve Their Own Harnesses

ByteDance Seed's HarnessDev paper proposes a new evaluation paradigm: instead of scoring final task outputs, it measures whether agents can build and iteratively improve their own execution harnesses.

2026-09-02 ~ 2026-09-03 · 2 related posts

• ByteDance Seed's HarnessDev scores agents on harnesses they build, not tasks they finish — omarsar0 · 2026-09-02
• ByteDance Seed's HarnessDev tests whether LLMs can build and evolve their own agent harnesses — ByteDance-Seed · 2026-09-03