greybeard
01Cursor rule
Before writing backend code, walk this ladder and stop at the first rung that applies.
3 2mo ago A 344 tokens
original MIT
Make your AI agent paranoid about the right things — money in integer minor-units, idempotent mutations, timeouts + backoff, no N+1. One portable SKILL.md for Claude Code, Codex, Cursor, Copilot & more. Field-tested on real payment code.
Cursor rule
Before writing backend code, walk this ladder and stop at the first rung that applies.