When JavaScript isn't fast enough or you need specific language features, this skill shows you how to build Cloudflare Workers with Rust, Python, or WebAssembly. It includes setup for Rust with wasm-pack, Python workers configuration, and WASM module integration patterns. The language comparison table is helpful for deciding when to reach for compiled languages (Rust wins on CPU-intensive tasks like crypto or image processing, Python for data work). The error troubleshooting section covers the usual WASM gotchas like version mismatches and memory limits. Most projects won't need this complexity, but when you're hitting performance walls or need language-specific libraries, it gets you building with minimal fumbling.
npx skills add https://github.com/secondsky/claude-skills --skill cloudflare-workers-multi-lang