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About this paper

Xin Lin, Ziheng Wang, Zerui Chen, Jiayao Ma, Zhimin Wei, Bingshuai Liu, Buchao Zhan, Qinggang Zhang and 1 more

JitSkill helps long-running agents use reusable skills by tracking task progress and using that state to retrieve skills and guide execution. It maintains explicit and recurrent latent states updated from actions and feedback. Ablations indicate dynamic retrieval and progress-conditioned execution contribute to completion. On ALFWorld, it reaches 92.38% success versus CUA-Skill’s 90.48% under shared conditions; this measures task completion, not efficiency.

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