Decisions

Accepted architecture decision records for Send Again, ordered roughly as they would be made when building the system.

Infrastructure

ADR	Title
001	Cloudflare Workers + D1 + Wrangler
002	Drizzle ORM
003	Simple session auth (httpOnly cookies)
004	tRPC API (not GraphQL, server functions, or subscriptions)
005	Vite SPA for the dashboard
006	In-process event bus

Domain

ADR	Title
007	Claim proof via apex TXT
008	One in-window pending claim per hostname
009	Stable claim code on retry
010	revoked vs soft-delete
011	Ownership vs DNS readiness
012	Verification timing (env-configurable)
013	DKIM rotation on claim transfer
014	No denormalized owner on domains