Delete a memory entry by ID.
AI agents call forget to permanently remove resources in Memmd — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool permanently removes memory entries and cannot be undone. Misuse could erase important context or instructions that an AI agent relies on, potentially causing loss of critical information across multiple MCP clients. While not financial or directly harmful to external systems, the destructive nature of permanent deletion warrants high severity.
From the tool's definition Delete a memory entry by ID — explicit use of 'Delete' indicates irreversible removal of data.
Attacks that exploit this kind of access
Delete a memory entry by ID. It is categorised as a Destructive tool in the Memmd MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Memmd MCP server in PolicyLayer and add a rule for forget: 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 Memmd. Nothing to install.
forget 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 forget 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 forget. 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.
forget is provided by the Memmd MCP server (matamong/memmd-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
forget is one line of Memmd's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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