Use when designing databases for data-heavy applications, making schema decisions for performance, choosing between normalization and denormalization, selecting storage/indexing strategies, planning for scale, or evaluating OLTP vs OLAP trade-offs. Also use when encountering N+1 queries, ORM issues, or concurrency problems.
Install
npx skills add ratacat/claude-skills --skill data-systems-architecturenpx skills add ratacat/claude-skills --skill data-systems-architecture -a claude-code -gnpx skills add ratacat/claude-skills --skill data-systems-architecture -a codex -ggemini skills install https://github.com/ratacat/claude-skills.git --path skills/data-systems-architecturegh skill install ratacat/claude-skills data-systems-architecturegit clone --depth 1 https://github.com/ratacat/claude-skills /tmp/ratacat__claude-skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/ratacat__claude-skills/skills/data-systems-architecture ~/.claude/skills/data-systems-architecture # Claude Code
cp -R /tmp/ratacat__claude-skills/skills/data-systems-architecture ~/.agents/skills/data-systems-architecture # Codex, Cursor, Gemini CLI, Copilot, OpenCode