PlanetScale + Drizzle (@db/app)

@db/app is Drizzle ORM on PlanetScale MySQL (Vitess) — a single driver, drizzle-orm/planetscale-serverless, identical in local dev and production. This skill maps the repo's conventions to the official PlanetScale docs worth fetching for schema, migration, and deploy work.

Engine-level depth: load the mysql and vitess skills. Inspecting the live database: load lightfast-db. Canonical commands: db/CLAUDE.md.

Repo conventions at a glance