Last month I launched BuzzWire — a SaaS product built and marketed by exactly one person. The content, the launch, the SEO, even the code: all of it runs through an AI stack wired together with MCP. Here’s the real setup, the exact prompts, and the honest limits. There’s a moment every solo founder hits. You look at your to-do list and see five jobs: writer, designer, analyst, ops person, and the one you were actually hired for — the person deciding what to do next. The old answer was: hire, or drop balls. The 2026 answer is different. You keep the deciding job and give the other four to a stack.…