Delete every memory in the given user/agent/app/run but keep the entity.
AI agents call delete_all_memories to permanently remove resources in Mem0 MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool irreversibly deletes data (all memories) in bulk without a per-item confirmation or undo capability. While it preserves the entity structure itself, the complete erasure of all associated memory records cannot be undone and represents a destructive action with significant blast radius if invoked unintentionally by an AI agent.
From the tool's definition Tool name 'delete_all_memories' combined with description 'Delete every memory in the given user/agent/app/run but keep the entity' explicitly performs irreversible deletion of all memories for a specified scope.
Risk signalsBulk/mass operation — affects multiple targets
Attacks that exploit this kind of access
Delete every memory in the given user/agent/app/run but keep the entity. It is categorised as a Destructive tool in the Mem0 MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Mem0 MCP Server MCP server in PolicyLayer and add a rule for delete_all_memories: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Mem0 MCP Server. Nothing to install.
delete_all_memories is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the delete_all_memories rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for delete_all_memories. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
delete_all_memories is provided by the Mem0 MCP Server MCP server (mem0ai/mem0-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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