Athena: Intermediate Representations for Iterative Scaffolded App Generation with an LLM

Apple Machine Learning Journal / 3/27/2026

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Key Points

  • Athena is presented as a research approach for iterative, scaffolded app generation using an LLM, focused on how to guide and refine generation over multiple steps.
  • The work emphasizes using intermediate representations (IRs) as a control layer between the LLM and the app-building process to improve iteration quality.
  • By scaffolding generation, Athena aims to reduce errors and better align outputs with developer intent during successive refinement cycles.
  • The paper (published March 2026) is positioned within Human-Computer Interaction and Tools/Platforms/Frameworks, indicating attention to workflow and usability implications for app generation.
  • The authors provide an arXiv publication link, enabling follow-up evaluation and potential replication of the proposed IR-based iterative method.
It is challenging to generate the code for a complete user interface using a Large Language Model (LLM). User interfaces are complex and their implementations often consist of multiple, inter-related files that together specify the contents of each screen, the navigation flows between the screens, and the data model used throughout the application. It is challenging to craft a single prompt for an LLM that contains enough detail to generate a complete user interface, and even then the result is frequently a single large and difficult to understand file that contains all of the generated…

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