app.build is our open-source reference architecture for agents, inspired by our work with partners and lessons learned along the way.

Neon

Neon built app.build as an open-source reference architecture for AI agents that generate complete, production-ready applications rather than just code snippets. Unlike typical AI coding tools that focus on frontend components and compilation, app.build creates full-stack applications with proper backends, databases, testing, authentication, and automated deployments. The platform addresses common issues in AI code generation like demo-driven development and frontend bias by providing comprehensive scaffolding including GitHub repositories, Postgres databases, type-safe APIs, test suites, and CI/CD pipelines. Starting with a constrained TypeScript/React stack for reliability, it now supports multiple languages and frameworks through modular architecture using finite state machines and template-based generation.

Why we built app.build

Code gen needs to move from code snippets to shipped software

Teaching agents how to build software, not just write code

<p>Put this in the dumpster, respectfully.</p>
