Repo0 Evolves a Dual-DAG Architecture Before Writing Code, Adding up to 29.74 Points of Pass Rate

arXiv 2608.19854·medium signalXBlueskyLinkedInCopy link

arXiv 2608.19854 targets zero-to-all code generation, where an agent has to build an entire project from natural-language requirements with no predefined repository architecture. Repo0 maintains an explicit architectural state as a Dual-DAG (a requirement-level DAG, a component-level DAG, and their alignment relation), evolving component boundaries via modularity-guided structural actions until convergence, and only then runs test-driven development against the frozen architecture. On six real repositories from RepoCraft using GPT-5 mini and DeepSeek V3.2, it beats RPG, the strongest repository-planning baseline, by up to 20.08 points of Functionality Coverage and 29.74 points of Pass Rate.