Cloud

Build authentication systems for TypeScript/Cloudflare Workers with social auth, 2FA, passkeys, organizations, RBAC, OAuth 2.1 provider, and 15+ plugins. Self-hosted alternative to Clerk/Auth.js.IMPORTANT: Requires Drizzle ORM or Kysely for D1 - no direct D1 adapter. Workers require nodejs_compat flag. v1.4.10 adds OAuth 2.1 Provider (MCP deprecated), Bearer tokens, Google One Tap, SCIM, Anonymous auth, rate limiting, Patreon/Kick/Vercel providers.Use when: self-hosting auth on Cloudflare D1, building OAuth provider for MCP servers, multi-tenant SaaS, admin dashboards, API key auth, guest users, or troubleshooting D1 adapter errors, session caching, rate limits, database hooks.

Build async message queues with Cloudflare Queues for background processing. Use when: handling async tasks, batch processing, implementing retries, configuring dead letter queues, managing consumer concurrency, or troubleshooting queue timeout, batch retry, message loss, or throughput exceeded.

Build sophisticated React animations with Motion (formerly Framer Motion) - declarative animations, gestures (drag, hover, tap), scroll effects, spring physics, layout animations, and SVG manipulation. Optimize bundle size with LazyMotion (4.6 KB) or useAnimate mini (2.3 KB).Use when: adding drag-and-drop interactions, creating scroll-triggered animations, implementing modal dialogs with transitions, building carousels with momentum, animating page/route transitions, creating parallax hero sections, implementing accordions with smooth expand/collapse, or optimizing animation bundle sizes. For simple list animations, use auto-animate skill instead (3.28 KB vs 34 KB).Troubleshoot: AnimatePresence exit not working, large list performance issues, Tailwind transition conflicts, Next.js "use client" errors, scrollable container layout issues, or Cloudflare Workers build errors (resolved Dec 2024).

Build ChatGPT apps with MCP servers on Cloudflare Workers. Extend ChatGPT with custom tools and interactive widgets (HTML/JS UI).Use when: developing ChatGPT extensions, implementing MCP servers, or troubleshooting CORS blocking (allow chatgpt.com), widget 404s (missing ui://widget/), wrong MIME type (text/html+skybridge), or ASSETS binding undefined.

Build type-safe D1 databases with Drizzle ORM for Cloudflare Workers. Includes schema definition, migrationswith Drizzle Kit, relations, and D1 batch API patterns. Prevents 12 errors including SQL BEGIN failures.Use when: defining D1 schemas, managing migrations, writing type-safe queries, implementing relations orprepared statements, using batch API for transactions, or troubleshooting D1_ERROR, BEGIN TRANSACTION,foreign keys, migration apply, or schema inference errors.Prevents 12 documented issues: D1 transaction errors (SQL BEGIN not supported), foreign keyconstraint failures during migrations, module import errors with Wrangler, D1 binding not found,migration apply failures, schema TypeScript inference errors, prepared statement caching issues,transaction rollback patterns, TypeScript strict mode errors, drizzle.config.ts not found,remote vs local database confusion, and wrangler.toml vs wrangler.jsonc mixing.Keywords: drizzle orm, drizzle d1, type-safe sql, drizzle schema, drizzle migration

Build RAG systems, semantic search, and document clustering with Gemini embeddings API (gemini-embedding-001). Generate 768-3072 dimension embeddings for vector search, integrate with Cloudflare Vectorize, and use 8 task types (RETRIEVAL_QUERY, RETRIEVAL_DOCUMENT, SEMANTIC_SIMILARITY) for optimized retrieval.Use when: implementing vector search with Google embeddings, building retrieval-augmented generation systems, creating semantic search features, clustering documents by meaning, integrating embeddings with Cloudflare Vectorize, optimizing dimension sizes (128-3072), or troubleshooting dimension mismatch errors, incorrect task type selections, rate limit issues (100 RPM free tier), vector normalization mistakes, or text truncation errors (2,048 token limit).

Set up Cloudflare Workers with Hono routing, Vite plugin, and Static Assets using production-tested patterns.Prevents 8 errors: export syntax, routing conflicts, HMR crashes, gradual rollout asset mismatches, and free tier 429s.Use when: creating Workers projects, configuring Hono or Vite for Workers, deploying with Wrangler,adding Static Assets with SPA fallback, or troubleshooting export syntax, API route conflicts, scheduledhandlers, or HMR race conditions.Keywords: Cloudflare Workers, CF Workers, Hono, wrangler, Vite, Static Assets, @cloudflare/vite-plugin,wrangler.jsonc, ES Module, run_worker_first, SPA fallback, API routes, serverless, edge computing,"Cannot read properties of undefined", "Static Assets 404", "A hanging Promise was canceled","Handler does not export", deployment fails, routing not working, HMR crashes

Build type-safe APIs with Hono - fast, lightweight routing for Cloudflare Workers, Deno, Bun, and Node.js. Covers routing, middleware, validation (Zod/Valibot), RPC client/server, streaming (SSE, streamText), WebSocket, security middleware (secureHeaders, CSRF), and combine middleware.Use when: building APIs with Hono, streaming responses (SSE, AI), WebSocket connections, security middleware (CSRF, secureHeaders), request validation, RPC communication, or troubleshooting validation hooks, RPC types, middleware chains.

Build semantic search with Cloudflare Vectorize V2 (Sept 2024 GA). Covers V2 breaking changes: async mutations,5M vectors/index (was 200K), 31ms latency (was 549ms), returnMetadata enum, and V1 deprecation (Dec 2024).Use when: migrating V1→V2, handling async mutations with mutationId, creating metadata indexes before insert,or troubleshooting "returnMetadata must be 'all'", V2 timing issues, metadata index errors, dimension mismatches.

Store objects with R2's S3-compatible storage on Cloudflare's edge. Use when: uploading/downloading files, configuring CORS, generating presigned URLs, multipart uploads, managing metadata, or troubleshooting R2_ERROR, CORS failures, presigned URL issues, or quota errors.

Set up serverless Postgres with Neon or Vercel Postgres for Cloudflare Workers/Edge. Includes connection pooling, git-like branching for preview environments, and Drizzle/Prisma integration.Use when: setting up edge Postgres, configuring database branching, or troubleshooting "TCP not supported", connection pool exhausted, SSL config (sslmode=require), or Prisma edge compatibility.

Store and transform images with Cloudflare Images API and transformations. Use when: uploading images, implementing direct creator uploads, creating variants, generating signed URLs, optimizing formats (WebP/AVIF), transforming via Workers, or debugging CORS, multipart, or error codes 9401-9413.

Store key-value data globally with Cloudflare KV's edge network. Use when: caching API responses, storing configuration, managing user preferences, handling TTL expiration, or troubleshooting KV_ERROR, 429 rate limits, eventual consistency, or cacheTtl errors.

Connect Workers to PostgreSQL/MySQL with Hyperdrive's global pooling and caching. Use when: connecting to existing databases, setting up connection pools, using node-postgres/mysql2, integrating Drizzle/Prisma, or troubleshooting pool acquisition failures, TLS errors, nodejs_compat missing, or eval() disallowed.

Build content-heavy sites with Git-backed TinaCMS. Provides visual editing and content management for blogs, documentation, and marketing sites with non-technical editors.Use when implementing Next.js, Vite+React, or Astro CMS setups, self-hosting on Cloudflare Workers, or troubleshooting ESbuild compilation errors, module resolution issues, or Docker binding problems.

Add bot protection with Turnstile (CAPTCHA alternative). Use when: protecting forms, securing login/signup, preventing spam, migrating from reCAPTCHA, integrating with React/Next.js/Hono, implementing E2E tests, or debugging CSP errors, token validation failures, or error codes 100*/300*/600*.

Guide for building applications on Cloudflare's edge platform. Use when implementing serverless functions (Workers), edge databases (D1), storage (R2, KV), real-time apps (Durable Objects), AI features (Workers AI, AI Gateway), static sites (Pages), or any edge computing solutions.

Guide for implementing Cloudflare Browser Rendering - a headless browser automation API for screenshots, PDFs, web scraping, and testing. Use when automating browsers, taking screenshots, generating PDFs, scraping dynamic content, extracting structured data, or testing web applications. Supports REST API, Workers Bindings (Puppeteer/Playwright), MCP servers, and AI-powered automation. (project)

Guide for implementing Cloudflare R2 - S3-compatible object storage with zero egress fees. Use when implementing file storage, uploads/downloads, data migration to/from R2, configuring buckets, integrating with Workers, or working with R2 APIs and SDKs.

Expert AWS solution architecture for startups focusing on serverless, scalable, and cost-effective cloud infrastructure with modern DevOps practices and infrastructure-as-code