RE4
RE4 is both a published method and a working system — giving complex AI-assisted projects a durable structure so humans and AI can coordinate clearly over time. The book teaches the method. The system installs directly into your repository. Most frameworks describe a way of working. RE4 installs one.
Get the Book Book ConsultingRE4 is a structure for managing engineering projects where humans and AI collaborate on code, documentation, and architecture.
It separates the responsibilities of different kinds of work into four roles so that complex systems remain understandable even when multiple contributors and AI systems are involved.
Alexandria
The library of the project. Records decisions, open questions, and knowledge about the system.
Q
The execution layer. Tracks tasks, commands, and the day-to-day work of building the system.
Kepler
The map of the system over time. Defines milestones, epochs, and the evolution of the project.
Gomer
The skeptic. Defines challenges, validation criteria, and tests that keep the system honest.
RE4 is open and inspectable. The reference implementation is available on GitHub.
View RepositoryAdopt RE4 in your engineering workflow
We help teams apply RE4 to real engineering projects, integrate AI collaborators safely, and build structures that remain understandable as systems grow.
- RE4 workflow setup
- AI-assisted engineering practices
- architecture and project structure review
- documentation and system organization