Adopt a B2B multi-tenant authentication architecture with an external identity provider as source of truth, URL-scoped tenants, SecurityV0 as its own organization, and cross-tenant super-admins via internal-org membership.
Select WorkOS as the identity provider for sv0-platform. Provides AuthKit (hosted login), enterprise SSO with self-serve Admin Portal, Directory Sync, and magic-link passwordless — free at evaluation scale, per-connection pricing at enterprise scale.
Enterprise executive review v2 — revised framing: platform serves analysts, executive layer is a separate deliverable.
Enterprise Executive Round 2 review -- partner handout assessment against March 19 demo-w1 snapshot. Scoring deliverable readiness against 3.5/5 target.
Enterprise executive review v1 (SUPERSEDED by v2) — partner handout assessment scoring deliverable readiness at 1.8/5.
Round 2 multi-perspective platform review — 7-agent visual review against 2026-03-19 snapshot. First validated MPAS-7 baseline with screenshot input. Consolidates both review rounds, Sergey's feedback status, research findings, and the forward path.
Research artifact: side-by-side comparison of six authentication providers (WorkOS, Clerk, Stytch B2B, Auth0, Cloudflare Access, roll-your-own) across twelve criteria. Informed ADR-017's selection of WorkOS.