Pick a cadence, then leave
High-intent searches like “cron job every 5 minutes” want `*/5 * * * *` immediately. Each child page keeps unique copy; this hub is the index.
Sub-minute is not Unix cron
There is no seconds field. Every-minute is the fastest honest 5-field schedule.
Plan honesty
Starter currently requires a one-hour minimum. Faster cards stay copyable and label the plan that can host them.