Short answer: yes, always. Porter's AI never spends your ad budget or changes a live campaign without you saying go.
When Porter's AI creates a campaign, an ad, or a creative, it's created paused by default. Nothing goes live until you turn it on — either by telling the AI to activate it, or flipping it on yourself directly in the platform.
Before executing a change to your account, Porter's skills ask for your permission. You see what's about to happen before it happens, not after.
If something was created or changed and you want it gone, changes can be reverted.
Some teams create a separate test ad account, let Porter run there first, and only move a setup to the live account once it looks right. This isn't required — it's just an option if you want to see Porter in action before it touches your main account.