titleRepo0: Design-Driven Zero-to-All Code Generation
authorsSilin Chen, Haoyi Teng, Xiaodong Gu, Yuling Shi, Jiale Huang, Yongpan Wang, Hongyu Zhang, Haibing Guan
date2026-08-20
venuearXiv (preprint, not peer reviewed)
idarXiv:2608.19854
affiliationShanghai Jiao Tong University
upvotes17 (Hugging Face Daily Papers, 2026-11-01)
linksabs pdf hf
abstractLarge language model agents have made substantial progress in code generation, yet most existing systems assume a predefined repository architecture. This assumption does not hold in zero-to-all code generation, where an agent must construct an entire software project directly from natural-language requirements while maintaining a modular repository architecture throughout development. We present Repo0, a continuous structural evolution framework for zero-to-all code generation. Repo0 maintains an explicit architectural state instantiated as a Dual-Directed-Acyclic-Graph (Dual-DAG), consisting of a requirement-level DAG, a component-level DAG, and their alignment relation. Starting from natural-language requirements, it iteratively evolves component boundaries through structural actions guided by modularity metrics until structural convergence, after which the converged architecture guides test-driven development code generation. We evaluate Repo0 on six real-world repositories from RepoCraft using GPT-5 mini and DeepSeek V3.2. Repo0 achieves the highest Functionality Coverage and Pass Rate across all settings. Compared with RPG, the strongest repository-planning baseline, Repo0 improves Functionality Coverage by up to 20.08 percentage points and Pass Rate by up to 29.74 percentage points. Ablation and structural-evolution analyses further demonstrate the importance of the Dual-DAG architectural state, modularity-guided structural evolution, and explicit structural convergence.

cite

@misc{chen2026repo,
  title={Repo0: Design-Driven Zero-to-All Code Generation},
  author={Silin Chen and Haoyi Teng and Xiaodong Gu and Yuling Shi and Jiale Huang and Yongpan Wang and Hongyu Zhang and Haibing Guan},
  year={2026},
  eprint={2608.19854},
  archivePrefix={arXiv},
  url={https://arxiv.org/abs/2608.19854}
}