What problem does it solve? Rolling out features safely and running A/B tests requires server-side flag evaluation, provider integration, and static page compatibility, which is complex to wire up manually in Next.js or SvelteKit applications. ## Core Features & Use Cases - Flags as Code: Declare each feature flag as a callable function with flag(), evaluate server-side, and batch evaluations with evaluate() for better performance. - Provider Adapters: Connect to Vercel Flags, Statsig, LaunchDarkly, PostHog, GrowthBook, Hypertune, Flagsmith, OpenFeature, and more, or write custom adapters. - Precompute Pattern: Keep pages static by evaluating flags in middleware and encoding results into URLs, with ISR and prerendering support via generatePermutations. - Use Case: Add a new feature flag end-to-end: register it with vercel flags add, pull environment variables, declare it with vercelAdapter, and conditionally render UI in a Next.js page. ## Quick Start Ask the agent to create a new boolean feature flag named 'new-dashboard' with Vercel Flags and use it in my Next.js page.
