Claude Code + UI interaction model = CC plays OSU! better then me

Reddit r/LocalLLaMA News

Summary

Claude Code uses a vision-based UI interaction model to play the game OSU! at 50ms per action, outperforming the human user without relying on an accessibility tree.

Pure vision, no accessibility tree. 50 ms per action.
Original Article

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The article discusses how Addy Osmani argues that the performance difference between AI coding agents like Claude Code, Cursor, and Cline stems from their 'Harness'—the layer of prompts, tools, and constraints around the model—rather than the underlying model itself. It details best practices for harness engineering, including hooks, sandboxing, and context management, to bridge the gap between model capability and actual agent performance.