In the realm of application development, efficient query design and data integrity are paramount, with database performance often addressed later by specialists. To address this, Couchbase 6.5 introduces the N1QL Index Advisor, a feature that recommends GSI indexes to optimize query response times, enhancing developer productivity and allowing early performance evaluation. The Index Advisor focuses on the Indexing Service (GSI) without assessing Key-Value or Full Text Search retrieval techniques. It suggests indexes that align with best practices, even if existing indexes are already in place, and can identify inefficiencies in current indexing strategies. By providing actionable insights and recommendations, the Index Advisor facilitates improved query performance and productivity, supporting a proactive approach to database management throughout an application's lifecycle.