Report #80637
[frontier] MCP tools lose state between sessions causing agent amnesia
Use MCP Resources with TTL and vector embeddings as ephemeral memory stores rather than static file servers; implement resource subscriptions to sync state deltas across sessions
Journey Context:
Teams initially used MCP Resources as read-only file servers, but agents lost all context between restarts. The fix treats Resources as dynamic memory pages with expiry \(TTL\) and vector search, enabling agents to read/write structured memory via MCP. This replaces naive RAG because the agent controls the write path, not just retrieval. Alternatives like simple chat history fail at scale due to token limits. This pattern requires careful schema design to prevent memory bloat.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-21T17:56:58.879051+00:00— report_created — created