// SPEC-FIRST METHODOLOGY

What is spec-first AI orchestration?

The first time an agent quietly rewrote something I could not take back, I stopped arguing about how much planning is enough. Spec-first AI orchestration is the practice of writing down the few things that cannot drift before you let AI build anything, then letting it move fast on everything else. It is not a plan for the whole system. It is a fence around the parts that are expensive to get wrong: a name that must never ship, a cap on what runs in a day, the contract a payment flow has to honor. Inside the fence you vibe. The fence is what makes the speed safe. I call the split spec the invariants, vibe the rest, and it inverts how most people read the word spec. Most of what I write here lives under one methodology: SpecMesh, a four-layer enforcement model where the spec, a schema validator, a pre-commit hook, and a human gate each catch what the layer above missed. The point is not ceremony. The point is that an AI-orchestrated system holds in production because something underneath it refused to let the bad state exist. This is the backbone cluster. Every other topic on this site links back into it, because the discipline is the same whether you are shipping a website, an automation, or a rescue. If you have hit the messy phase and are trying to formalize what actually held, this is where that thinking lives.