diff --git a/CLAUDE.md b/CLAUDE.md
index 0ea81bf..d9e7437 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -131,7 +131,7 @@ This is a fork with UX improvements. Issues are tracked on the Gitea instance ab
 | 3 | QR Code Sizing Fixes | ✅ DONE |
 | 4 | Layout Max-Width | ✅ DONE |
 | 5 | Temperature Ranges | ✅ DONE |
-| 6 | Spool Adjustment History | 🔄 NEXT |
+| 6 | Spool Adjustment History | ✅ DONE |
 | 7 | 3dfilamentprofiles Integration | Open |
 
 ### Issue #1 Complete - Inline Creation Modals
@@ -198,13 +198,18 @@ Files:
 - `client/src/pages/filaments/create.tsx` - Form updates
 - `client/src/pages/printing/spoolQrCodePrintingDialog.tsx` - Template tags
 
-### Issue #6 Next - Spool Adjustment History
+### Issue #6 Complete - Spool Adjustment History
 
-Track history of all spool weight adjustments with timestamps and comments.
+Track history of all spool weight/length adjustments with timestamps and comments.
 
-Plan:
-- New table `SpoolAdjustment` with: spool_id, timestamp, type, value, comment
-- Relationship to Spool model with cascade delete
-- API endpoint to list adjustment history
-- Optional comment field in use/adjust endpoints
-- Frontend: History section in spool show page
+Backend:
+- `spoolman/database/models.py` - Added `SpoolAdjustment` model with relationship to Spool
+- `migrations/versions/2025_01_15_0300-*.py` - Migration for spool_adjustment table
+- `spoolman/api/v1/models.py` - Added `SpoolAdjustment` Pydantic model
+- `spoolman/api/v1/spool.py` - Added comment field to use/measure endpoints, GET /spool/{id}/adjustments endpoint
+- `spoolman/database/spool.py` - Updated use_weight, use_length, measure functions to record adjustments
+
+Frontend:
+- `client/src/pages/spools/model.tsx` - Added `ISpoolAdjustment` interface
+- `client/src/pages/spools/show.tsx` - Collapsible adjustment history table
+- `client/public/locales/en/common.json` - Translation keys for history table