Development

Complete knowledge domain for Cloudflare R2 - S3-compatible object storage on Cloudflare's edge network. Use when: creating R2 buckets, uploading files to R2, downloading objects, configuring R2 bindings, setting up CORS, generating presigned URLs, multipart uploads, storing images/assets, managing object metadata, or encountering "R2_ERROR", CORS errors, presigned URL failures, multipart upload issues, or storage quota errors. Keywords: r2, r2 storage, cloudflare r2, r2 bucket, r2 upload, ...

Complete knowledge domain for Cloudflare Queues - flexible message queue for asynchronous processing and background tasks on Cloudflare Workers. Use when: creating message queues, async processing, background jobs, batch processing, handling retries, configuring dead letter queues, implementing consumer concurrency, or encountering "queue timeout", "batch retry", "message lost", "throughput exceeded", "consumer not scaling" errors. Keywords: cloudflare queues, queues workers, message queue,...

Use this skill when building Model Context Protocol (MCP) servers on Cloudflare Workers. This skill should be used when deploying remote MCP servers with TypeScript, implementing OAuth authentication (GitHub, Google, Azure, etc.), using Durable Objects for stateful MCP servers, implementing WebSocket hibernation for cost optimization, or configuring dual transport methods (SSE + Streamable HTTP). The skill prevents 15+ common errors including McpAgent class export issues, OAuth redirect URI m...

Complete knowledge domain for Cloudflare Workers KV - global, low-latency key-value storage on Cloudflare's edge network. Use when: creating KV namespaces, storing configuration data, caching API responses, managing user preferences, implementing TTL expiration, handling KV metadata, or encountering "KV_ERROR", "429 too many requests", "kv rate limit", cacheTtl errors, or eventual consistency issues. Keywords: kv storage, cloudflare kv, workers kv, kv namespace, kv bindings, kv cache, kv tt...

This skill provides comprehensive knowledge for Cloudflare Images, covering both the Images API (upload/storage) and Image Transformations (optimize any image). It should be used when uploading images to Cloudflare, resizing images, optimizing image delivery, implementing direct creator uploads, creating image variants, generating signed URLs for private images, transforming images via Workers, or encountering image upload/transformation errors. Use when: setting up Cloudflare Images storage...

Comprehensive guide for Cloudflare Durable Objects - globally unique, stateful objects for coordination, real-time communication, and persistent state management. Use when: building real-time applications, creating WebSocket servers with hibernation, implementing chat rooms or multiplayer games, coordinating between multiple clients, managing per-user or per-room state, implementing rate limiting or session management, scheduling tasks with alarms, building queues or workflows, or encounteri...

Complete knowledge domain for Cloudflare D1 - serverless SQLite database on Cloudflare's edge network. Use when: creating D1 databases, writing SQL migrations, configuring D1 bindings, querying D1 from Workers, handling SQLite data, building relational data models, or encountering "D1_ERROR", "statement too long", "too many requests queued", migration failures, or query performance issues. Keywords: d1, d1 database, cloudflare d1, wrangler d1, d1 migrations, d1 bindings, sqlite workers, ser...

Complete knowledge domain for Cloudflare Browser Rendering - Headless Chrome automation with Puppeteer and Playwright on Cloudflare Workers for screenshots, PDFs, web scraping, and browser automation workflows. Use when: taking screenshots, generating PDFs from HTML or URLs, web scraping content, crawling websites, browser automation tasks, testing web applications, managing browser sessions, performing batch browser operations, integrating with AI for content extraction, or encountering bro...

Comprehensive guide for the Cloudflare Agents SDK - build AI-powered autonomous agents on Workers + Durable Objects. Use when: building AI agents, creating stateful agents with WebSockets, implementing chat agents with streaming, scheduling tasks with cron/delays, running asynchronous workflows, building RAG (Retrieval Augmented Generation) systems with Vectorize, creating MCP (Model Context Protocol) servers, implementing human-in-the-loop workflows, browsing the web with Browser Rendering,...

This skill provides comprehensive knowledge for integrating Clerk authentication in React, Next.js, and Cloudflare Workers applications. It should be used when setting up user authentication, implementing protected routes, verifying JWT tokens, creating custom JWT templates with user metadata and organization claims, configuring Clerk middleware, integrating with shadcn/ui components, testing authentication flows, or troubleshooting Clerk authentication errors. Use when: adding Clerk to Reac...

Comprehensive knowledge for using the Bash tool in Claude Code effectively. This skill should be used when orchestrating CLI tools, configuring hooks, setting up automation workflows, managing git operations, handling multi-command patterns, or encountering Bash tool errors. Covers: PreToolUse hooks, command chaining patterns, git workflow automation, CLI tool integration, custom commands (.claude/commands/), security configurations, allowlisting, session persistence, output handling, error ...

This skill provides comprehensive knowledge for working with the Anthropic Claude Agent SDK. It should be used when building autonomous AI agents, creating multi-step reasoning workflows, orchestrating specialized subagents, integrating custom tools and MCP servers, or implementing production-ready agentic systems with Claude Code's capabilities. Use when building coding agents, SRE systems, security auditors, incident responders, code review bots, or any autonomous system that requires prog...

Browser automation, debugging, and performance analysis using Puppeteer CLI scripts. Use for automating browsers, taking screenshots, analyzing performance, monitoring network traffic, web scraping, form automation, and JavaScript debugging.

Creates complete single-file HTML/CSS/JS web apps with localStorage persistence, ADHD-optimized UI (60px+ buttons), dark mode, and offline functionality. Use when user says "create app", "build tool", "make dashboard", or requests any browser-based interface.

This skill provides project-specific coding conventions, architectural principles, repository structure standards, testing patterns, and contribution guidelines for the better-chatbot project (https://github.com/cgoinglove/better-chatbot). Use this skill when contributing to or working with better-chatbot to understand the design philosophy and ensure code follows established patterns. Includes: API architecture deep-dive, three-tier tool system (MCP/Workflow/Default), component design patte...

Implement authentication and authorization with Better Auth - a framework-agnostic TypeScript authentication framework. Features include email/password authentication with verification, OAuth providers (Google, GitHub, Discord, etc.), two-factor authentication (TOTP, SMS), passkeys/WebAuthn support, session management, role-based access control (RBAC), rate limiting, and database adapters. Use when adding authentication to applications, implementing OAuth flows, setting up 2FA/MFA, managing u...

Production-ready authentication framework for TypeScript with first-class Cloudflare D1 support. Use this skill when building auth systems as a self-hosted alternative to Clerk or Auth.js, particularly for Cloudflare Workers projects. Supports social providers (Google, GitHub, Microsoft, Apple), email/password, magic links, 2FA, passkeys, organizations, and RBAC. Prevents 10+ common authentication errors including session serialization issues, CORS misconfigurations, D1 adapter setup, social ...

Production-tested setup for Base UI (@base-ui-components/react) - MUI's unstyled component library that provides accessible, customizable React components using render props pattern. This skill should be used when building accessible UIs with full styling control, migrating from Radix UI, or needing components with Floating UI integration for smart positioning. Use when: Setting up Base UI in Vite + React projects, migrating from Radix UI to Base UI, implementing accessible components (Dialo...

Production-tested setup for AutoAnimate (@formkit/auto-animate) - a zero-config, drop-in animation library that automatically adds smooth transitions when DOM elements are added, removed, or moved. This skill should be used when building UIs that need simple, automatic animations for lists, accordions, toasts, or form validation messages without the complexity of full animation libraries. Use when: Adding smooth animations to dynamic lists, building filter/sort interfaces, creating accordion...

Production-ready Auth.js v5 setup for Next.js and Cloudflare Workers. Use when: setting up authentication, implementing OAuth/credentials/magic links, configuring D1 or PostgreSQL adapters, debugging session issues, migrating from v4 to v5, fixing edge compatibility, troubleshooting JWT/database sessions, resolving AUTH_SECRET errors, fixing CallbackRouteError, or implementing RBAC. Covers: Next.js App Router & Pages Router, Cloudflare Workers + D1, OAuth providers (GitHub, Google, etc.), c...

Generates production-ready API clients with TypeScript types, retry logic, rate limiting, authentication (OAuth, API keys), error handling, and mock responses. Use when user says "integrate API", "API client", "connect to service", or requests third-party service integration.

Frontend React hooks for AI-powered chat interfaces, completions, and streaming UIs with Vercel AI SDK v5. Includes useChat, useCompletion, and useObject hooks for building interactive AI applications. Use when: building React chat interfaces, implementing AI completions in UI, streaming AI responses to frontend, handling chat message state, building Next.js AI apps, managing file attachments with AI, or encountering errors like "useChat failed to parse stream", "useChat no response", unclos...

Backend AI functionality with Vercel AI SDK v5 - text generation, structured output with Zod, tool calling, and agents. Multi-provider support for OpenAI, Anthropic, Google, and Cloudflare Workers AI. Use when: implementing server-side AI features, generating text/chat completions, creating structured AI outputs with Zod schemas, building AI agents with tools, streaming AI responses, integrating OpenAI/Anthropic/Google/Cloudflare providers, or encountering AI SDK errors like AI_APICallError,...

This skill provides production-ready AI chat UI components built on shadcn/ui for conversational AI interfaces. Use when building ChatGPT-style chat interfaces with streaming responses, tool/function call displays, reasoning visualization, or source citations. Provides 30+ components including Message, Conversation, Response, CodeBlock, Reasoning, Tool, Actions, Sources optimized for Vercel AI SDK v5. Prevents common setup errors with Next.js App Router, Tailwind v4, shadcn/ui integration, A...