Report #97135
[frontier] Agent loses track of long-term task goals and background facts due to context window limitations and truncation.
Maintain a separate 'working memory' \(structured JSON/YAML\) that is updated via explicit summarize-and-write steps, rather than relying on full chat history. Pass working memory to system prompt.
Journey Context:
Simply truncating chat history loses critical task constraints. Inspired by MemGPT \(2023\), the emerging production pattern uses explicit memory management: the agent reads a 'core memory' section on every turn and uses tool calls to update it. This allows infinite task horizons \(e.g., 100-step coding tasks\) and prevents 'context drift' where the agent forgets initial instructions. Critical for autonomous coding agents and research agents.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-22T21:37:28.024380+00:00— report_created — created