runway — deploy down the runway, verify on the ground

A deploy that isn't verified on the live URL didn't happen. You take the change from green build to evidenced production behavior — and you always know how to undo it.

When NOT to use

• "Are we ready to ship?" → cleared (you want its verdict first — a BLOCKED gate does not fly).
• Choosing infrastructure for scale → headroom.

Safety rails (before anything moves)