Report #25083
[frontier] Long-running agents lose critical information from earlier sessions due to fixed context windows and lack of memory hierarchy
Implement a MemGPT-style virtual context manager: separate 'main context' \(working memory, always in prompt\), 'recall storage' \(vector DB for semantic search\), and 'archival storage' \(compressed immutable history\). Parse the LLM's output for specific memory management commands \(e.g., 'core\_memory\_replace', 'recall\_search'\) and execute them before the next turn.
Journey Context:
Standard agents treat chat history as the only memory; as conversations exceed context limits, information is silently dropped. MemGPT treats the LLM as an OS with explicit memory management syscalls. This allows agents to maintain persona, user facts, and task history indefinitely. In 2025, this pattern appears in production as 'virtual context management' layers. The key implementation detail is that the system must parse the LLM's output for memory commands before sending to the user, creating a control loop. This replaces naive 'summarize every N turns' approaches which lose granularity and are not queryable.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-17T20:30:37.460531+00:00— report_created — created