A Prompt Is a Wish. A Tool Is a Law.

Short summary

A product manager shipped an AI-powered payment tool to production without writing code by describing the workflow to an agent. The hard part isn't LLMs generating code; it's guardrails that prevent non-engineers from shipping unsafe code. Prompts alone can't enforce rules reliably—state machines must live server-side, making each workflow phase a tool that validates the previous step and blocks the agent from fabricating its way forward.

• •Non-engineers can ship AI tools safely if infrastructure enforces guardrails instead of relying on prompts
• •State-machine gates must live server-side; prompts and hooks fail because agents rationalize around them
• •Make rules a property of tools: each step becomes its own tool that validates the previous phase before unlocking the next

Generated with AI, which can make mistakes.