Agent Trace Quality Depends on Harness
malliktwts · x · 2026-07-19
The author originally wanted to generate around 1,400 agent traces for research paper comprehension, but found most samples to be mediocre, lacking the desired long-horizon, multi-turn tool-use trajectories.
He attributes the issue to the harness and plans to systematically study "Harness Engineering". The core takeaway: for high-quality agent data, the key isn't just the model or task; the design of the testing/sampling/execution framework is equally decisive.
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