{"ID":2875029,"CreatedAt":"2026-06-01T04:54:23.091178241Z","UpdatedAt":"2026-06-01T04:54:23.091178241Z","DeletedAt":null,"paper_url":"https://arxiv.org/abs/2509.03310","arxiv_id":"2509.03310","title":"app.build: A Production Framework for Scaling Agentic Prompt-to-App Generation with Environment Scaffolding","abstract":"We present app.build (https://github.com/neondatabase/appdotbuild-agent), an open-source framework that improves LLM-based application generation through systematic validation and structured environments. Our approach combines multi-layered validation pipelines, stack-specific orchestration, and model-agnostic architecture, implemented across three reference stacks. Through evaluation on 30 generation tasks, we demonstrate that comprehensive validation achieves 73.3% viability rate with 30% reaching perfect quality scores, while open-weights models achieve 80.8% of closed-model performance when provided structured environments. The open-source framework has been adopted by the community, with over 3,000 applications generated to date. This work demonstrates that scaling reliable AI agents requires scaling environments, not just models -- providing empirical insights and complete reference implementations for production-oriented agent systems.","short_abstract":"We present app.build (https://github.com/neondatabase/appdotbuild-agent), an open-source framework that improves LLM-based application generation through systematic validation and structured environments. Our approach combines multi-layered validation pipelines, stack-specific orchestration, and model-agnostic architec...","url_abs":"https://arxiv.org/abs/2509.03310","url_pdf":"https://arxiv.org/pdf/2509.03310v2","authors":"[\"Evgenii Kniazev\",\"Arseny Kravchenko\",\"Igor Rekun\",\"James Broadhead\",\"Nikita Shamgunov\",\"Pranav Sah\",\"Pratik Nichite\",\"Ivan Yamshchikov\"]","published":"2025-09-03T13:41:45Z","proceeding":"cs.AI","tasks":"[\"cs.AI\",\"cs.SE\"]","methods":"[\"Large Language Model\"]","has_code":false,"code_links":[{"ID":610178,"CreatedAt":"2026-06-01T04:54:23.091178241Z","UpdatedAt":"2026-06-01T04:54:23.091178241Z","DeletedAt":null,"paper_id":2875029,"paper_url":"https://arxiv.org/abs/2509.03310","paper_title":"app.build: A Production Framework for Scaling Agentic Prompt-to-App Generation with Environment Scaffolding","repo_url":"https://github.com/neondatabase/appdotbuild-agent","is_official":false,"mentioned_in_paper":false,"mentioned_in_github":true,"github_stars":0}]}