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arXiv — cs.AI preprintsInternational19 October 2026

WebCoder: Scaling General Frontend Development with Artifact-Grounded Agentic Reinforcement Learning

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arXiv:2610.23104v1 Announce Type: new Abstract: Real-world frontend development requires agents to compose reproduction, generation, modification, and repair over an evolving application state. Learning a general policy for this process requires translating heterogeneous execution feedback into task-aligned rewards and effective credit assignment across long sequences of interdependent actions. We introduce WebCoder, a general frontend development agent trained with artifact-grounded agentic reinforcement learning. Our key idea is to assess diverse development activities through their effects
— arXiv — cs.AI preprints

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