Remove a belief from memory.
AI agents call memory_forget to permanently remove resources in Semantic Mesh Memory (SEM) MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool permanently deletes beliefs from the agent's memory system. Deletion is inherently irreversible and cannot be undone—a core characteristic of Destructive tools.
From the tool's definition Tool name 'memory_forget' with description 'Remove a belief from memory' indicates irreversible deletion of stored data without recovery mechanism.
Attacks that exploit this kind of access
Remove a belief from memory. It is categorised as a Destructive tool in the Semantic Mesh Memory (SEM) MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Semantic Mesh Memory (SEM) MCP Server MCP server in PolicyLayer and add a rule for memory_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 Semantic Mesh Memory (SEM) MCP Server. Nothing to install.
memory_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 memory_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 memory_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.
memory_forget is provided by the Semantic Mesh Memory (SEM) MCP Server MCP server (jordancoin/sem-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
memory_forget is one line of Semantic Mesh Memory (SEM) MCP Server'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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