How to avoid disaster when vibe-coding a billing engine — Andrew Garvin, Stripe
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AI Engineer
Author
AI Engineer
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Terms in this piece · Glossary
sandbox — An isolated environment where AI-generated code or agent actions run without being able to touch anything real.
AI agent — An AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.
guardrails — The checks around a model that block bad inputs and outputs — filters, validators, and permission rules the model itself can't override.
Why it matters
A billing vendor's own limit line: let agents accelerate you into a test environment, not into production money. Plus the practical guardrailsThe checks around a model that block bad inputs and outputs — filters, validators, and permission rules the model itself can't override.Full definition → — portable skills files and errors verbose enough for an AI agentAn AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.Full definition → to correct itself.
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