Delete a long-term memory by name.
AI agents call delete_long_term_memory to permanently remove resources in Memory MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool permanently removes long-term memory entries, which cannot be undone. While the data deleted is within the AI system's own memory rather than external critical systems, the irreversible nature of deletion and potential loss of important contextual information justify the Destructive category and high severity rating.
From the tool's definition Tool name explicitly states 'delete_long_term_memory' and description confirms 'Delete a long-term memory by name.' This is an irreversible deletion operation.
Attacks that exploit this kind of access
Delete a long-term memory by name. It is categorised as a Destructive tool in the Memory MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Memory MCP Server MCP server in PolicyLayer and add a rule for delete_long_term_memory: 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 Memory MCP Server. Nothing to install.
delete_long_term_memory 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_long_term_memory 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_long_term_memory. 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_long_term_memory is provided by the Memory MCP Server MCP server (win10ogod/memory-mcp-server). 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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