The type of failure shows if a harness or weights repair an agent
The authors say that harness changes repair process failure and weight training repairs content failure.
Claimed, not confirmed
A research paper gives a rule to select a harness change or weight training for an LLM agent. The authors group the failures of the agent by the first signal. Loops, blocked calls, and a used-up step budget are process failure, and a changed harness repairs them. A plan of low quality is a content failure, and weight training repairs it. In the DeepPlanning test, the harness increases the score of Qwen3.5-4B from 0.16 to 0.30.
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