Sprint 0 is the AI OS Audit. It's your cheapest, fastest engagement โ and the one that earns the right to sell everything else.
What it covers: a workflow inventory, an AI-nativeness score (using the ladder from Module 1), a context-debt assessment (Module 16), an MCP-readiness check of the existing stack, a permission-risk review of anything already automated, and a prioritized roadmap with effort/impact ratings.
Deliverables: an audit document, workflow maps, and a 90-day plan.
Why it wins: it's diagnostic, not prescriptive. It gathers real data about the client's situation before any build begins. And it writes the SOW for every sprint below it. Skipping it is the workshop-brainstorm failure mode โ you build what you guessed the client needed.