Upskill: skill registry your agent consults before it starts. 10k+ indexed, free, open source.

You give Cursor a real task and watch it work… from memory. Ask for a landing page → generic off-brand Tailwind hero Ask for Clerk auth → skips JWT verification “I’ll write a CSV parser” → reinvents half of papaparse (badly) You just spent 20 minutes and 1k tokens watching it iterate on something that already has a perfect answer somewhere online. The frustrating part isn’t that Claude is bad. It’s that the right playbooks already exist.