# Compass Performance Insights > Source-anchored research for Compass Performance Insights. Run status: COMPLETED. Parent: [MongoDB Compass](https://llms-explorer.com/tree/mongodb-compass/) · 3 facets · 14 facts · page: https://llms-explorer.com/tree/compass-performance-insights/ ## How it works - The documented schema prompts cover excessive collections, large arrays, oversized documents, and excessive indexes; another prompt suggests embedding related data when $lookup is used. (low confidence) — [source](https://www.mongodb.com/docs/compass/manage-data/performance-insights.md) - Review suggestions against actual application needs before changing a schema; an advised index should support frequently used queries. MongoDB recommends applying the guidance early because production schema changes can be harder. (low confidence) — [source](https://www.mongodb.com/docs/compass/manage-data/performance-insights.md) - A query or aggregation executed without an index triggers guidance to add a supporting index. (low confidence) — [source](https://www.mongodb.com/docs/compass/manage-data/performance-insights.md) - Other documented triggers include excessive collections, array elements, document size, or indexes; the page supplies no numeric detection thresholds. (low confidence) — [source](https://www.mongodb.com/docs/compass/manage-data/performance-insights.md) ## Comparisons and alternatives - TECHBETA labels explain-plan visualization as Performance Insights; this terminology differs from MongoDB’s dedicated recommendation-feature documentation. (medium confidence) — [source](https://techbeta.org/software/mongodb-compass/) ## Facts and statements - Compass Performance Insights presents schema and query improvement suggestions within the GUI; OVHcloud also lists performance insights among Compass's developer tools. (high confidence) — [source](https://www.mongodb.com/docs/compass/manage-data/performance-insights.md) - Compass 1.39.0, released July 14, 2023, enabled proactive performance insights by default. (high confidence) — [source](https://www.mongodb.com/docs/compass/release-notes/2023.md) - Documented query prompts recommend indexing unindexed operations and considering Atlas Search for $text or $regex queries; 2023 release notes also record these insight types. (high confidence) — [source](https://www.mongodb.com/docs/compass/manage-data/performance-insights.md) - MongoDB describes performance insights as generic: their messages do not use schema-specific database or collection names. (low confidence) — [source](https://www.mongodb.com/docs/compass/manage-data/performance-insights.md) - MongoDB's COMPASS-10146 issue was resolved December 22, 2025 with fix version 1.49.0. It records re-enabling the unindexed-query proactive-insights entry point after adding assistant context and read-only database tool support. (low confidence) — [source](https://jira.mongodb.org/browse/COMPASS-10146) - An InfluxDB feature proposal opened September 21, 2026 cites Compass schema suggestions as prior art alongside Atlas and Ops/Cloud Manager. This is an external proposal's assessment, not an independent benchmark of Compass. (low confidence) — [source](https://github.com/influxdata/influxdb/issues/27657) - Compass provides graphical database exploration with performance-insight capabilities. (medium confidence) — [source](https://www.mongodb.com/docs/compass/manage-data/performance-insights.md) - Documented prompts suggest embedding for $lookup and considering Atlas Search for $text or $regex. (low confidence) — [source](https://www.mongodb.com/docs/compass/manage-data/performance-insights.md) - The documented insights can direct users to the Compass Intelligent Assistant for additional help. (low confidence) (verified as of 2026-10-14) — [source](https://www.mongodb.com/docs/compass/manage-data/performance-insights.md)