database-first

REQUIRED before implementing any game feature, scoring logic, state transition, or decision-making. ALL business logic lives in PostgreSQL - frontend is presentation only. Load this to understand where code belongs: database function vs component. Covers RPC patterns, SECURITY DEFINER, and anti-patterns.

$ Installer

git clone https://github.com/discountedcookie/10x-mapmaster /tmp/10x-mapmaster && cp -r /tmp/10x-mapmaster/.opencode/skills/database-first ~/.claude/skills/10x-mapmaster

// tip: Run this command in your terminal to install the skill