Senior expert in Auth.js v5 (NextAuth), Edge-First authentication and security. Optimized for Next.js 16.1.1 and React 19.2.
Complete guide to implementing push notifications in Capacitor apps using Firebase Cloud Messaging (FCM) and Apple Push Notification Service (APNs). Covers setup, handling, and best practices. Use...
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Implement usage-based billing with Flowglad including recording usage events, checking balances, and displaying usage information. Use this skill when adding metered billing, tracking API calls,...
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Complete PumpFun Protocol guide for building token launches, bonding curves, and AMM integrations on Solana. Covers Pump Program (token creation, buy/sell on bonding curves), PumpSwap AMM...
React 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...
React 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...
React 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...
React 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...
React 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...
React 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...
React 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...
React 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...
React 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...
React 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...
Migrate codebase from try/catch or Promise-based error handling to better-result. Use when adopting Result types, converting thrown exceptions to typed errors, or refactoring existing error...
Complete reference for integrating with 300+ AI models through the OpenRouter TypeScript SDK using the callModel pattern
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Generates tests from features.json test criteria with multi-framework support, coverage analysis, and features.json integration.