mongodb-query-optimizer

Analyze MongoDB query explain plans and suggest index improvements.

166|30|Updated Feb 26, 2026
One-click install
npx skills add https://github.com/mongodb/agent-skills --skill mongodb-query-optimizer-mongodb
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: mongodb-query-optimizer
Source: https://github.com/mongodb/agent-skills/tree/main/skills/mongodb-query-optimizer
Command: npx skills add https://github.com/mongodb/agent-skills --skill mongodb-query-optimizer-mongodb

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill helps users improve the efficiency and speed of their MongoDB queries by providing tailored optimization advice.

Core Features & Use Cases

  • Query Analysis: Assists in diagnosing slow or inefficient queries by examining explain plans and index usage.
  • Index Recommendations: Suggests index structures based on query patterns and MongoDB best practices.
  • Performance Improvement: Guides users through optimizing aggregations, lookups, and sort operations for faster results.
  • Use Case: Given a slow query on a large collection, the user can get specific indexing suggestions tailored to their query shape and workload.

Quick Start

Input a MongoDB query with context, and receive guidance on indexes, explanations, and performance tips to optimize database operations.

Frequently Asked Questions about mongodb-query-optimizer

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I optimize slow MongoDB queries on large collections?

To optimize slow MongoDB queries, you need to analyze query bottlenecks and apply index recommendations. This Skill examines your query shape and workload to suggest specific index structures and query improvements for faster data retrieval.

How does analyzing a MongoDB explain plan improve query performance?

Analyzing a MongoDB explain plan improves performance by identifying bottlenecks in index usage and query execution. It guides you through optimizing aggregations, lookups, and sort operations to achieve faster results and optimized resource usage.

What is the best way to structure MongoDB aggregations for faster data retrieval?

The best way to structure MongoDB aggregations for faster data retrieval is to apply tailored optimization advice based on your specific query patterns. This involves adjusting query structures and implementing recommended indexes to minimize resource usage.

Can I get index recommendations for specific MongoDB query patterns?

Yes, you can receive index recommendations tailored to your specific MongoDB query patterns. By inputting your query and context, the analysis suggests appropriate index structures based on best practices to accelerate data retrieval.

When do I need to adjust query structure for MongoDB performance optimization?

You need to adjust query structure for MongoDB performance optimization when diagnosing slow queries or inefficient index usage. Modifying aggregations, lookups, and sort operations based on explain plan analysis resolves bottlenecks and speeds up results.