Guardrails before speed

Teams reach for AI coding tools to go faster. The ones that keep the speed are the ones that treat guardrails as product work, not a follow-up.

What I mean by guardrails

Not a policy PDF. Concrete defaults: what the model is allowed to touch, how a change is reviewed, which tests must pass, and where a human still has to look. Without that, you get a burst of throughput and a slower incident later.

I have been introducing this as an engineering manager the same way we introduce any other production practice — small, observable, reversible. Start with one workflow (tests, docs, or a well-bounded refactor), measure the review load, then widen the aperture.

Speed is the outcome. Guardrails are the system.