The 'FDE vs internal' debate for AI agents is a category error. There are 5 markets, not one.

A take going around this week: AI agents are done. Vertical startups are dead. Internal teams are building everything themselves. That collapses 5 markets into 1 binary. FDE vs internal. Winner takes all. Wrong question. Five markets, not one: Fortune 500, regulated, org-wide rollouts: FDE wins. The hard part isn't writing code, it's integration, compliance, politics. A $4B Deployment Company contract buys engineers who can hold a room. AI coding can't. Large enterprises, tactical agents department by department: internal wins. AI coding dropped build cost below what consulting can compete with. Vertical SaaS adding agent features: SaaS vendor wins. They own customer and data. SMB, indie, solo: internal by force. Standalone "vertical agent startup" plays from 2024: mostly over. But capabilities didn't disappear, they moved into SaaS feature layers. The wrong reading: "internal wins, vendors lose." Internal teams still need a harness underneath. Database, deploy target, secrets, domain binding, a way to fail predictably. They want to write the agent, not operate the infrastructure. For what it's worth, my team built one of these. A backend + deploy plugin meant for agents to drive. Product, marketing, and ops folks at our shop now ship internal tools on it (ad creative voting widgets, campaign landing pages). It's a real product now, just hasn't picked up many users yet. Partly because the market is early, partly because top engineers tend to roll their own. Our bet is on the next layer down: non-technical people and small teams who don't need (and shouldn't have to learn) a complex solution. **Simple enough to just work is the whole point.** Happy to share if anyone here wants a look. Not a war. A layer cake. Different layers, different winners.