Use when building or modifying UI components, layouts, or pages for TenantSmith. Covers the brand color palette, dark/light theme conventions, component patterns, typography, spacing rules, and the login page design system. Do not use for backend logic, database migrations, or API endpoints.
Use when a tenant reports their custom domain is not working — returning 403, 404, or SSL errors. Covers diagnosing Cloudflare hostname status, domain verification state, DNS misconfiguration, and stuck background sync jobs. Do not use for general tenant setup or Cloudflare account-wide issues.
Apply when working on multi-tenancy: tenant creation, domain management, host resolution, middleware pipeline, Cloudflare SSL for SaaS, or database-per-tenant architecture. Covers stancl/tenancy v3 configuration, domain verification flows, and the RejectInvalidTenantHost middleware. For diagnosing broken custom domains in production, prefer diagnose-custom-domain.