Report #47745
[frontier] Context windows overflow with long conversations causing loss of critical early instructions
Implement tiered memory architecture separating core context \(working memory\), recall memory \(vector store\), and archival memory \(hierarchical summaries\) with automatic paging
Journey Context:
Simple truncation or naive RAG fails to preserve semantic coherence across long sessions. MemGPT introduced OS-inspired memory management: the LLM sees a 'virtual context window' that is a managed view of larger storage. The system uses the LLM itself to decide when to page memory in/out \(eviction\) and to reconstruct context from summaries. This prevents 'lost in the middle' and instruction drift in long-horizon tasks by treating memory as a managed hierarchy rather than a fixed buffer.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-19T10:36:54.724664+00:00— report_created — created