Standardize AI Agent Memory Retrieval with Stable Headers
Enable stable list behavior for agent memory with new beta headers.
Update your Claude API integration to use the `agent-memory-2026-07-22` beta header to ensure stable, predictable ordering when listing managed memories.
The Scenario
You are building a custom AI agent using Claude's managed memory architecture and need to ensure stable retrieval of stored memories during scaling.
Before & after
Developers used the `managed-agents-2026-04-01` header which allowed inconsistent path matching and substring results. Debugging unstable memory lists could take 30–60 minutes of troubleshooting.
Update your header to `agent-memory-2026-07-22` and use a `path_prefix` ending in `/`. This update takes 5–10 minutes and ensures your memory list calls return stable, server-defined results.
The Prompt
Update my Python/TypeScript API call for listing memories to include the beta header: 'agent-memory-2026-07-22'. Change the path_prefix from '[OLD_PREFIX]' to '[NEW_PREFIX]/' to ensure compatibility.
The new `agent-memory-2026-07-22` beta header enforces stricter, more predictable memory listing. It requires `path_prefix` to end with `/` and limits `depth` values to 0 or 1. This ensures that memory retrieval for AI agents is stable and returns whole path segments rather than partial matches.
Source
Claude Platform - Claude Platform Docs"agent-memory-2026-07-22 beta header... changes how listing memories behaves: results are returned in a stable, server-defined order."