概要
This skill empowers Claude to transform sluggish database operations into high-performance queries by applying systematic optimization techniques across various database engines. It provides comprehensive guidance on interpreting EXPLAIN plans, implementing sophisticated index types like GIN and BRIN, eliminating N+1 query issues, and optimizing complex joins or subqueries. Whether you are debugging production bottlenecks or architecting a scalable schema for growing datasets, this skill ensures your database layer remains responsive, scalable, and cost-effective.