Ask Claude to Design a Feature Flag System for Your App

Before reaching for a paid service, ask Claude to scaffold a lightweight feature flag system tailored to your exact stack.

"Design a feature flag system for a Laravel + Vue SPA:
- Flags stored in the database with per-user and per-role overrides
- Accessible via an API endpoint and a Blade directive
- Vue composable useFeatureFlag('flag-name') for the frontend
- Admin UI toggle (Filament) to enable/disable without a deploy
- Cache flags per-user with automatic cache busting on update"

Feature flags look simple but have subtle edge cases — cache invalidation, fallback values, and percentage rollouts. Describing your constraints upfront lets Claude design a system that fits your architecture rather than a generic one you'll immediately need to rewrite.

A typical output includes a Feature model, a HasFeatureFlags trait, a @feature Blade directive, and a typed Vue composable:

// Composable usage
const { isEnabled } = useFeatureFlag('new-checkout')
if (isEnabled.value) { /* show new UI */ }

Claude also handles the part most hand-rolled implementations miss: syncing flag state to the frontend without an extra round-trip by embedding the user's active flags in the initial page payload.

For pure JavaScript or TypeScript apps, specify your framework and Claude adapts — the same concept works as Zustand middleware or a React Context provider.

Flags let you ship code before it's live — get Claude to build the toggle system before your next big feature.