As agents write more and more of our code, people are increasingly shipping software that is beyond their abilities (to understand/debug).
When something breaks, you may not have a human on call who can fix it. Incident response starts to require an agent, or at minimum a human-agent pair.
This means even if your code contains zero AI calls, model providers still sit in your dependency chain. In your ability to build and maintain your product.
Your engineering capacity is hostage to model availability, and model providers go down too. You'd never staff your engineering org entirely with contractors. Are you okay renting all your agents?