What problem does it solve? Turning a plan or spec into buildable work often produces tickets with hidden dependencies — a task looks ready, gets started, then stalls mid-build because an input it needs was never produced. This Skill cuts plans into vertical tracer-bullet slices, declares every blocking edge, and audits each ticket's inputs against producing tickets so work always starts from a genuinely ready frontier. ## Core Features & Use Cases - Tracer-bullet slicing: Cuts narrow but complete vertical paths through every layer (schema, action, UI, state, tests), each demoable on its own and sized to one context window. - Input-trace dependency audit: Traces every input a ticket consumes to the ticket that produces it, catching declared-but-insufficient edges before they stall a build. - Solo-first output: Writes plain-text ticket files to a local tickets/ folder by default, mode-switching up to a real tracker's native blocking links only when one is actually used. - Use Case: Given a spec for a "Saved venues" feature in a Next.js app, produce four numbered tickets where the audit reveals the favorites page lacks a read query, forcing the persistence ticket to own both the write mutation and the read query before sequencing begins. ## Quick Start Take the approved spec for this feature and break it into ordered tracer-bullet tickets with declared blocking edges in a local tickets folder.