Definition
Repository-centric engineering treats the repository as the primary surface for implementation truth, workflow contracts, and reusable project knowledge.
Working Claim
The repository is not only where code lives. It is where an engineering system can preserve the contracts that make future work safer: setup, tests, architecture, release paths, operating boundaries, and local conventions.
Use
Use this concept when deciding whether a lesson should become repo documentation, automation, tests, templates, or agent guidance.
Boundary
The repository should not absorb every operational fact. Runtime evidence, credentials, incidents, and deployment state still belong to their owning systems.