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About this paper

Roshan Klein-Seetharaman, Daniel Wang, Andrew Xu

The authors measure tool discovery separately from task success in settings where tool use is optional. In Lomekwi, they distinguish curiosity (finding ingredients), recognition (choosing to build), and efficiency (succeeding after building), with grind accounting for wins without a tool. In Recognition MCP, Qwen3.5 2B to 27B oracle discovery falls from 0.29 to 0.02, while overall win rate rises from 0.46 to 0.88.

Summary by alphaXiv.

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