Individual skill

mongodb-query-optimizer

Help with MongoDB query optimization and indexing. Use only when the user asks for optimization or performance: "How do I optimize this query?", "How do I index this?", "Why is this query slow?", "Can you fix my slow queries?", "What are the slow queries on my cluster?", etc. Do not invoke for general MongoDB query writing unless user asks for performance or index help. Prefer indexing as optimization strategy. Use MongoDB MCP when available.

plugins/mongodb-atlas/skills/mongodb-query-optimizer/SKILL.md

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Last checked: Nov 6, 2026

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Repository stars (not skill ratings): 196
Repository last updated: Nov 3, 2026
License: Apache-2.0

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SKILL.mdcore · 10,331 bytes
references/aggregation-optimization.mddoc · 6,721 bytes
references/antipattern-examples.mddoc · 2,527 bytes
references/core-indexing-principles.mddoc · 4,319 bytes
references/update-query-examples.mddoc · 1,144 bytes

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# MongoDB Query Optimizer

## When this skill is invoked

Invoke **only** when the user wants:

- Query/index **optimization** or **performance** help  
- **Why** a query is slow or **how to speed it up**  
- **Slow queries** on their cluster and/or **how to optimize them**

Do **not** invoke for routine query authoring unless the user has requested help with optimization, slow queries, or indexing.

## High Level Workflow