This surface packages supplier dependency, switching pressure, contract leverage, fallback readiness, and compliance portability into reproducible routes and JSON outputs for board and executive reviews.
/vendor-register keeps tier stories, owners, and next moves tied to one lane./concentration-tiers compares concentration, switching friction, contract exposure, fallback readiness, compliance dependency, and platform coupling./mitigation-posture sequences diversify, negotiate, ring-fence, port, contain, and escalate decisions./api/payload exposes the reproducible vendor-concentration packet.