feat: enforce per-layer retention intervals in maintenance worker#19
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sblanchard merged 3 commits intomasterfrom Feb 12, 2026
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Replace the single ColdPeriodDays archival threshold with layer-specific retention intervals so memories at higher cognitive layers are preserved longer before becoming eligible for archival: L0_RAW = 30 days L1_CONTEXT = 90 days L2_SUMMARY = 180 days L3_KNOWLEDGE = 365 days L4_HEURISTIC = indefinite (never archived) Previously L3_KNOWLEDGE was blanket-excluded from archival alongside L4_HEURISTIC. Now L3 memories can be archived after their 365-day retention window if they also meet the low-confidence and low-access criteria. https://claude.ai/code/session_01Qh2fiKmvk9szkc8ZY6Y2Je
…iables Read per-layer retention from environment variables with sensible defaults: RETENTION_L0_RAW_DAYS (default: 30) RETENTION_L1_CONTEXT_DAYS (default: 90) RETENTION_L2_SUMMARY_DAYS (default: 180) RETENTION_L3_KNOWLEDGE_DAYS (default: 365) The MaintenanceConfig is now registered as a singleton and injected into MemoryMaintenanceWorker instead of falling back to MaintenanceConfig.Default. https://claude.ai/code/session_01Qh2fiKmvk9szkc8ZY6Y2Je
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Replace the single ColdPeriodDays archival threshold with layer-specific
retention intervals so memories at higher cognitive layers are preserved
longer before becoming eligible for archival:
L0_RAW = 30 days
L1_CONTEXT = 90 days
L2_SUMMARY = 180 days
L3_KNOWLEDGE = 365 days
L4_HEURISTIC = indefinite (never archived)
Previously L3_KNOWLEDGE was blanket-excluded from archival alongside
L4_HEURISTIC. Now L3 memories can be archived after their 365-day
retention window if they also meet the low-confidence and low-access
criteria.
https://claude.ai/code/session_01Qh2fiKmvk9szkc8ZY6Y2Je