Fix TypeScript type inference loss when dynamically constructing Zod object schemas. Use when: (1) `z.infer<typeof schema>` produces `Record<string, unknown>` instead of typed fields, (2) Building a schema factory that constructs `z.object()` from dynamic…
Access the Home Assistant REST API using environment variables HA_URL and HA_TOKEN exported in ~/.zshrc. Use when: (1) need to query Home Assistant entity states, (2) need to call HA services programmatically, (3) need to debug or inspect HA integration…
Fix Better Auth performance anti-pattern: manual db.$setAuth() vs. reusing cached client. Use when: (1) Server actions or components create new auth contexts with db.$setAuth(), (2) Functions accept User parameter just to create auth context, (3) Dashboard or…
Fix for "An error occurred in the Server Components render" in Next.js production builds when using ZenStack ORM with Better Auth. Use when: (1) Generic Server Components error in production with no stack trace, (2) Works in dev but fails in production, (3)…
Fix timezone drift when using JavaScript Date methods with UTC-stored times. Use when: (1) Times shift by user's timezone offset (e.g., 09:00 UTC becomes 10:00 in BST browsers), (2) Database stores times in UTC but display shows wrong hours, (3) Inconsistent…
Refactor Next.js + Better Auth authentication to minimal API with discriminated unions. Use when: (1) Too many auth helper functions causing maintenance burden, (2) Want perfect type safety without optional chaining, (3) Need to optimize auth performance with…
Fix TypeScript errors when integrating react-big-calendar drag-and-drop addon in Next.js/React projects. Use when: (1) Getting "Module has no exported member 'EventInteractionArgs'" error, (2) EventWrapperProps type missing 'children' property causing type…
Integrate react-big-calendar with Next.js 16 App Router and shadcn/ui. Use when: (1) Need to add a visual calendar to Next.js app, (2) Want calendar that works with server/client component split, (3) Need to integrate with shadcn/ui theming, (4) Building…