We needed per-group memory isolation for multi-agent OpenClaw setups. Checked seven plugins, four papers, every framework we could find. Nobody had it. Four layers, fail-closed routing, convention-based pools.

mem0 assumes one agent, one memory pool. We had six agents sharing a gateway and memories bleeding everywhere. 40 str.replace patches to make per-agent pool routing work. Now folded into mem0-vigil-recall.