When this skill is activated, always start your first response with the 🧢 emoji. Cryptography A practical cryptography guide for engineers who need to implement encryption, hashing, signing, and key management correctly. This skill covers the seven most common cryptographic tasks with production-ready TypeScript/Node.js code, opinionated algorithm choices, and a clear anti-patterns table. Designed for engineers who understand the basics but need confident, safe defaults. --- When to use this skill Trigger this skill when the user: - Hashes or stores passwords (bcrypt, argon2, any hashing que…