One contract beats a dozen tools

You declare your entities once (Drizzle) and your verbs once (Hono + Zod). The OpenAPI v4 document is derived — every layer reads from that one document.

What's projected from the contract

• the Scalar docs and the typed client
• the shadcn UI and the admin cockpit
• the cost meter and the deploy plan

Nothing is hand-synced, so nothing can drift. Add an entity to the registry and it appears everywhere downstream:

{ name: 'Product', table: products, access: 'public' }

Three tools holding three copies of the truth is three chances to disagree. One document can't.