What problem does it solve? When a feature "almost works" or something feels off, developers often check only one layer and miss where the flow actually breaks. This Skill infers the complete user story being built and verifies every boundary — browser, server, API route, data source, and response rendering — with concrete evidence instead of guesswork. ## Core Features & Use Cases - Story Inference: Reads recently edited files, routes, and environment files to state the exact user story before checking anything. - Multi-Layer Evidence Gathering: Inspects browser console, dev server terminal, runtime logs, and environment variables, reporting findings at each layer. - Data Flow Tracing: Walks the path from UI trigger through API handler to external dependencies and back, catching common breaks like missing awaits, wrong HTTP methods, and absent env vars. - Use Case: After starting a Next.js dev server, ask whether the new checkout feature works — the Skill traces the button click, the POST to the API route, the database call, and the rendered response, then reports exactly which boundary fails and how to fix it. ## Quick Start Ask the assistant to verify that the feature you just built works end to end across the browser, API, and database.
