Cloudflare Development

This is a comprehensive reference for building on Cloudflare's edge platform, covering Workers, Pages, KV, D1, R2, and Durable Objects with TypeScript examples throughout. You get concrete patterns for everything from basic Worker setup and wrangler.toml configuration to KV caching strategies, D1 query parameterization, R2 object handling, and Durable Objects for stateful WebSocket coordination. The security section includes practical request validation, auth checks, and rate limiting implementations. It's opinionated in the right ways, like always using parameterized queries and leveraging ctx.waitUntil() for background tasks. If you're doing anything beyond a hello world on Cloudflare's infrastructure, this gives you the patterns you'll actually need instead of making you dig through their docs.

skills.sh installs: 718
GitHub stars: 302
last updated: Aug 21, 2026

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Install

$ npx -y skills add mindrally/skills --skill cloudflare-development --agent claude-code

Installs into .claude/skills of the current project.

Files

Cloudflare Development Best Practices

Overview

This skill provides comprehensive guidelines for developing applications on Cloudflare's edge platform, including Workers, Pages, KV storage, D1 databases, R2 object storage, and Durable Objects.

Core Principles

Write lightweight, fast code optimized for edge execution
Minimize cold start times and execution duration
Use appropriate storage solutions for each use case
Follow security best practices for edge computing
Leverage Cloudflare's global network for performance

Cloudflare Workers Guidelines

Basic Worker Structure

export default {
  async fetch(request: Request, env: Env, ctx: ExecutionContext): Promise<Response> {
    try {
      const url = new URL(request.url);

      // Route handling
      if (url.pathname === '/api/data') {
        return handleApiRequest(request, env);
      }

      return new Response('Not Found', { status: 404 });
    } catch (error) {
      console.error('Worker error:', error);
      return new Response('Internal Server Error', { status: 500 });
    }
  },
} satisfies ExportedHandler<Env>;

SKILL.md on GitHub