Code Archaeology

Mar 18, 2026 · Artificial Intelligence

Deep Agents Context Management: How SummarizationMiddleware Auto-Compresses History

This article details Deep Agents' context management implementation using SummarizationMiddleware, which automatically compresses conversation history during model calls by offloading old messages to backend storage and replacing them with generated summaries, including threshold configuration, cutoff determination, and the three message views that enable traceable, iterative summarization.