How to structure Blazor app chrome with the "empty layout + cascaded page-component shell" pattern — keep LayoutComponentBase empty and put header/nav/content/aside/footer in ONE shell component that pages wrap their content in and that cascades itself. Use when designing a Blazor app's layout/navigation, deciding where chrome belongs, building a layout shell, or when chrome must react to a state store or per-navigation lifecycle that a layout can't provide.
**TIMEWARP SKILL** — product slice placement and TWA0009 isolation (SliceRoot, namespaces, platform Applications, Components/contracts sharing, CrossSliceReference opt-out). Invoke before scaffolding a new feature/slice/page or when fixing TWA0009 / cross-slice references. WHEN: "Add a new clients feature page", "Where does this state live?", "TWA0009 slice references another product slice", "CrossSliceReference", "new product area under features/", greenfield slice scaffolding.
**TIMEWARP SKILL** — endpoint-centric Web.Contracts API contracts (Command, Query, ApiRoute, I*Details, Validator, serialization tests). Invoke before scaffolding or fixing contracts. WHEN: "Add a CreateTodoItem command contract", "Scaffold a GetRole query with ApiRoute and IRoleDetails for the edit form", "Add a serialization round-trip test for my Command".
Add GetMockResponseFactory to API contracts and register factories in the SPA mock API service.
How to style Blazor + FluentUI components in this repo without Tailwind. The "isolation-first hybrid" convention — CSS isolation by default, global design tokens, and two documented exceptions for FluentUI shadow-DOM and light-DOM children. Use when authoring or restyling any .razor component, choosing where CSS lives, or styling a FluentUI component.
**WORKFLOW SKILL** — Deploy Aspire apps from AppHost models to Docker Compose, Kubernetes, Azure, or AWS. WHEN: "deploy Aspire app", "publish Aspire artifacts", "deploy to Azure Container Apps", "generate Kubernetes artifacts", "tear down Aspire deployment". INVOKES: aspire CLI, Aspire docs, target cloud/container CLIs. FOR SINGLE OPERATIONS: use generic Azure, Kubernetes, Docker, or AWS tools only when no Aspire AppHost exists.
**WORKFLOW SKILL** - First-run flow for adding Aspire to a repo. Picks `aspire new` (greenfield) or `aspire init` (existing repo), drops the AppHost skeleton, then hands off to `aspireify` for resource wiring. USE FOR: aspire init, aspire new, aspire-starter, aspire-ts-starter, aspire-py-starter, add Aspire to existing repo, scaffold Aspire app, bootstrap Aspire, no AppHost detected, install aspireify, generated .aspire/modules. DO NOT USE FOR: AppHost wiring on an existing AppHost (use aspireify), start/stop/wait (use aspire-orchestration), deploy/publish (use aspire-deployment), logs/traces (use aspire-monitoring), repo that already has an AppHost. INVOKES: aspire CLI (init, new, doctor), aspireify (handoff after skeleton drop). FOR SINGLE OPERATIONS: Run `aspire init` or `aspire new TEMPLATE` directly.