napkin

A DDD spec pipeline plus data-model tooling. The ddd-* skills take a project from an interactive brief through a ubiquitous-language glossary, event flows, and EARS use cases to a development plan — with every artifact living in spec/ as the single source of truth and a mechanical alignment gate (ddd-align) proving the cross-references. In the middle sits erd-modeler, which turns the glossary into a clean, normalized DBML model and proves it works against an in-memory Postgres (PGlite), live-testing each use case's data assertions. The manual /erd-diagram command renders any DBML model into a self-contained, interactive HTML ER diagram.