What problem does it solve? Cloudflare Workers APIs, types, and configuration change frequently, so pre-trained knowledge is often outdated. This Skill grounds Workers code writing and review in the project's installed versions, generated types, and Wrangler compatibility settings, catching anti-patterns like buffered response bodies, hardcoded secrets, and floating promises before they reach production. ## Core Features & Use Cases - Anti-Pattern Detection: Flags 15+ concrete issues including unbounded body buffering, Math.random() for security tokens, module-level mutable state, and ctx.passThroughOnException() misuse. - Configuration Review: Verifies compatibility dates, nodejs_compat flags, generated binding types via wrangler types, and observability settings for logs and traces. - Platform API Validation: Checks handler signatures, binding access patterns (env.X vs this.env.X), and serialization boundaries across Queues, Workflows, Durable Objects, and WebSockets. - Use Case: When reviewing a pull request that adds a new Worker endpoint, the Skill checks that secrets use Wrangler secrets, background work uses ctx.waitUntil(), and large responses stream instead of buffering. ## Quick Start Review my Cloudflare Worker code in src/index.ts for best practice violations and outdated API usage.
