What it takes to operate a SaaS when AI agents write all the code

A solo founder describes running DocSpring, a document automation SaaS, with AI agents handling much of the coding, bug fixing, Sentry error triage, performance work and CI, coordinated across 49 Claude Code sessions. He reports shipping long-deferred features such as Word templates, a Page Designer and API v2, and clearing his inbox and error queues, while noting that agents can drift into unwanted behavior changes, as when a date fix expanded into an unplanned date-parser project. He concludes that he still sets priorities, approves changes and decides what to promise customers, and that AI does not by itself protect the business from competitors using the same tools.