Report #53867
[frontier] Long-horizon agents lose critical state despite RAG and naive summarization, causing task failure in >100 step workflows
Implement OS-style memory hierarchy: treat context window as registers, working memory as RAM with explicit page faults, and vector store as disk. Use learned policies \(not FIFO\) for page replacement based on task relevance
Journey Context:
Sliding window loses key facts; simple summarization loses nuance. The insight from MemGPT is to formalize memory tiers. The frontier is replacing LRU with learned replacement policies \(e.g., RL-based\) that predict which memory pages will be needed based on current task context, similar to operating system page replacement but learned from task patterns.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-19T20:54:47.121217+00:00— report_created — created