AI coding tools versus a system you can run a business on — where vibe-coding shines, where it breaks, and what production really needs.

Trust in an AI agent comes from constraints, not cleverness. Six principles — transparency, bounds, human handoff, no fabrication, an audit log, and real permissions — separate an agent people rely on from one they quietly route around.
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Replit, Lovable, Bolt, v0 and Cursor are genuinely good — at what they were built for. Here is what each does best, what it costs, and the line between a fast prototype and the system you actually run your business on.
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The old question was how many people AI could replace. The better question is how many hours of your best people it can move from busywork to the work only humans do well.
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The prompt-to-app tools are genuinely good. The question isn't whether they build — it's what happens on day 400, when the demo has to hold real money, real people, and real permissions.
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A weekend prototype and a system you run a business on are different animals. Here are the signs you have outgrown one, what production-grade actually requires, and how to make the jump without a year-long rebuild.
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AI coders turn a prompt into a running app in minutes. That's a genuine advance — for prototypes and internal tools. Running a company is a different job. Here's where the line sits, and how to keep the AI speed without owning the maintenance.
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