Billing STOP, prerequisite. Billing must be enabled before any , , , or usage works. Two paths: (1) Dashboard → Billing → Settings, or (2) (see "Agent-first: Programmatic billing config" below). Enabling auto-creates default / plans. Dev instances can use the shared Clerk development gateway (no Stripe account needed); production requires a Stripe account for payment processing only. Note : Billing APIs are still experimental. Pin your and package versions. See skill for the supported version table. Quick Start 1. Enable Billing , via Dashboard → Billing → Settings or (see Agent-first section…