Agent Skills

Use when you need to check feature flag states, compare channels, or debug why a feature behaves differently across release channels.

Install

npx skills add https://github.com/react/react --skill flags
SKILL.md

Feature Flags

Arguments:

  • $ARGUMENTS: Optional flags

Options

Option Purpose
(none) Show all flags across all channels
--diff <ch1> <ch2> Compare flags between channels
--cleanup Show flags grouped by cleanup status
--csv Output in CSV format

Channels

  • www, www-modern - Meta internal
  • canary, next, experimental - OSS channels
  • rn, rn-fb, rn-next - React Native

Legend

โœ… enabled, โŒ disabled, ๐Ÿงช __VARIANT__, ๐Ÿ“Š profiling-only

Instructions

  1. Run yarn flags $ARGUMENTS
  2. Explain the output to the user
  3. For --diff, highlight meaningful differences

Common Mistakes

  • Forgetting __VARIANT__ flags - These are tested both ways in www; check both variants
  • Comparing wrong channels - Use --diff to see exact differences

Related skills

vercel-react-best-practicesvercel-labs751KReact and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing, reviewing, or refactoring React/Next.js code to ensure optimal performance patterns. Triggers on tasks involving React components, Next.js pages, data fetching, bundle optimization, or performance improvements.vercel-composition-patternsvercel-labs361KReact composition patterns that scale. Use when refactoring components with boolean prop proliferation, building flexible component libraries, or designing reusable APIs. Triggers on tasks involving compound components, render props, context providers, or component architecture. Includes React 19 API changes.vercel-react-view-transitionsvercel-labs135KGuide for implementing smooth, native-feeling animations using React's View Transition API (`<ViewTransition>` component, `addTransitionType`, and CSS view transition pseudo-elements). Use this skill whenever the user wants to add page transitions, animate route changes, create shared element animations, animate enter/exit of components, animate list reorder, implement directional (forward/back) navigation animations, or integrate view transitions in Next.js. Also use when the user mentions viewpick-ui-libraryemilkowalski124KPick the right library for a given frontend task from a curated, opinionated list โ€” numbers, OTP inputs, charts, command menus, virtualization, drag and drop, toasts, state, styling, and more. Only runs when explicitly invoked; it does not trigger on its own.

Search skills and MCP servers

Fuzzy search across 23,137 skills and servers