Dev-Backend — Production-Grade Backend Engineering

Build reliable, secure, and maintainable server-side applications. This skill has modular references for specialized guidance — read the relevant ones before coding. It activates by change surface whenever work primarily touches APIs, servers, services, jobs, data access, schemas, migrations, or operational backend behavior.

C0/C1 work (small local patches): See dev §0.0 Work Classifier + §0.1 Patch Fast-Path before reading references.

Modular References