Memory Decay
BizXEngine automatically deprioritizes stale memories. The decay model ensures long-running agents don’t drown in outdated context.
Decay model
Decay is applied as a multiplier (0.05–1.0) on the composite retrieval score. The multiplier depends on memory type, importance, and age.
| Condition | Decay multiplier |
|---|---|
Expired temporal (past expires_at) | 0.05 (near-invisible) |
| Importance ≥ 9, any age | max(0.9, 1 − age/1000) |
| Importance ≥ 7 | max(0.75, 1 − age/500) |
| All others | max(0.3, 1 − age/180) |
Set importance: 9 or 10 for facts that should never fade — contract terms, user preferences, critical configs.