You (they/we) likely already are running code written by AI agents, and reviewed by human meatbags. Indeed this very forum software we humans are using to conduct this civil discourse has AI steering.
(I linked to the markdown files in repos that are good indicators that the project is amenable to AI-based contributions. I have not audited either project to determine if they have accepted such contributions, but it’s a good indicator)
Not passing judgment, just adding data.