6 agent skills for coding and frameworks, each from its publisher's own repository or a large open-source project. Open a skill for its license, install command and the date we checked it.
Claude API is Anthropic's open-source agent skill for code that calls Claude: current model IDs and prices, guides for seven SDK languages plus cURL, and guided migrations to newer models.
React Best Practices is Vercel Engineering's agent skill of 70 performance rules for React and Next.js, ranked by impact, which the agent applies when it writes or reviews code.
React Composition Patterns is Vercel's agent skill for React component APIs: compound components, lifted state and explicit variants instead of a growing list of boolean props.
React Native is Vercel's agent skill of React Native and Expo rules, ranked by impact: list performance, animations, native navigation and UI patterns for faster mobile apps.
React View Transitions is Vercel's agent skill for animating route changes, shared elements and list reorders with React's ViewTransition component, in Next.js and other React apps.
stripe-best-practices is Stripe's own agent skill for integration decisions: it steers the agent to the right Stripe API for payments, subscriptions, Connect, tax and security, using current API and SDK versions.