Browse / Database Management / Query Performance Analysis

Query Performance Analysis

Analyzes database query performance, detects N+1 issues, identifies missing indexes, and guides safe index migrations.

SkillDatabase ManagementSqlMigrationsCode Search

The source repository doesn't declare a license. Check its terms before reusing the code.

Key features

  • Identification of missing indexes for common query patterns
  • Slow query analysis with MongoDB's `EXPLAIN` and profiler
  • Performance regression testing integration examples
  • N+1 query detection and resolution using eager loading
  • Guidance on safe, online index migration strategies for production environments

Use cases

  • Debugging and optimizing slow API endpoints
  • Preventing performance regressions before merging code
  • Planning and executing safe database index migrations in production

FAQ

What does the Query Performance Analysis skill do?

This skill equips Claude to analyze and optimize database queries. It specializes in detecting N+1 problems, identifying missing indexes, interpreting MongoDB's EXPLAIN plans, and guiding you through safe, online index migrations for production systems.

When should I use this skill?

Use this skill when debugging slow API endpoints, before merging new code that interacts with the database, or when planning to add or change indexes in a live environment. It's ideal for preventing performance regressions and ensuring scalability.

What are its key capabilities?

Its main capabilities include: N+1 query detection with eager loading solutions, slow query analysis using MongoDB's profiler and EXPLAIN, identification of missing indexes for common query patterns, and providing strategies for safe, zero-downtime index migrations.

How does this skill improve my development workflow?

It provides a structured, pre-merge checklist and automated analysis to catch performance issues early. By integrating performance validation into your workflow, you reduce debugging time, prevent production incidents, and maintain a fast, responsive application.