Add a new MCP tool to the shared registry so the chat agent and external MCP clients can both call it.
Add a new FastAPI endpoint with router, schema, integration test scaffold, and a reminder to regenerate frontend types.
Add a shadcn/ui primitive correctly into the frontend.
Walk a new contributor (or a fresh dev environment) through getting My Family Tree running locally end-to-end.
Generate and hand-review a new Alembic migration after editing SQLModel tables.