developer tools
The Memory Store Stayed. The Upgraded Agent Still Forgot
Fixed-schema knowledge graphs transferred almost unchanged, while compressed notes swung by as much as 13.28 points depending on migration direction.
Summary
Fixed-schema knowledge graphs transferred almost unchanged, while compressed notes swung by as much as 13.28 points depending on migration direction.
The controlled study preserved the same 48 synthetic histories across long-context reading, retrieval chunks, model-compressed notes and fixed-schema knowledge graphs, then changed the sub-10-billion-parameter model reading or writing them. Fixed-schema graph accuracy changed by only 0.0004 points, within a 0.0020 uncertainty band. Compressed notes moved asymmetrically by plus 9.91 or minus 13.28 percentage points depending on direction. A half-migrated embedding index captured only 4.96 points of the 11.90-point gain from full re-embedding. Repairing notes without raw history never reached the 90-percent recovery target, while keeping source history succeeded in 34 of 48 cases in one direction.
Why it matters
Fixed-schema knowledge graphs transferred almost unchanged, while compressed notes swung by as much as 13.28 points depending on migration direction.
Limits and context
- Fixed-schema graph accuracy changed by only 0.0004 points, within a 0.0020 uncertainty band.
- A half-migrated embedding index captured only 4.96 points of the 11.90-point gain from full re-embedding.
Key claims
Fixed-schema knowledge graphs transferred almost unchanged, while compressed notes swung by as much as 13.28 points depending on migration direction.
Qualification: Fixed-schema graph accuracy changed by only 0.0004 points, within a 0.0020 uncertainty band.
Evidence: source-2026-09-08-013
Sources
- arXiv preprint 2609.05339arXiv · primary research
Corrections
No corrections have been recorded for this story.