# $bucket-bucketAuto > Depth-first rabbithole dossier for $bucket-bucketAuto; source-anchored research pack. Parent: [mongodb-aggregation-stages-deep](https://llms-explorer.com/tree/mongodb-aggregation-stages-deep/) · 1 facets · 3 facts · page: https://llms-explorer.com/tree/bucket-bucketauto/ ## Facts and statements - Concept: `$bucket-bucketAuto` (MongoDB aggregation pipeline stages `$bucket` and `$bucketAuto`) Parent context: `mongodb-aggregation-stages-deep` Report date: 2026-09-18 — source: `~/.global-ai-hub/research-runs/frontier-validation-2/bucket-bucketauto/reports/history.md` - **Concept:** `$bucket-bucketAuto` (MongoDB aggregation stages) **Parent context:** `mongodb-aggregation-stages-deep` **Date:** 2026-09-18 **Report type:** atomic-claim practice report (operational use, trade-offs, evaluation, implications) — source: `~/.global-ai-hub/research-runs/frontier-validation-2/bucket-bucketauto/reports/practice.md` - - `~/.global-ai-hub/research-runs/frontier-validation-2/bucket-bucketauto/synthesis.md` — new: cross-report synthesis, 76 claims — source: `~/.global-ai-hub/research-runs/frontier-validation-2/bucket-bucketauto/rabbithole-synthesis.md#files` ## Related concepts - bucket-bucketAuto — is a part of $bucket-bucketAuto