Critical Risk →

forget

Remove a memory. Use sparingly.

Part of the Nexus Memory server.

forget can permanently delete data in Nexus Memory, with no limits today. PolicyLayer puts allow, deny, and rate-limit rules on every call. Live in minutes.

SECURE NEXUS MEMORY →

Free to start. No card required.

AI agents may call forget to permanently remove or destroy resources in Nexus Memory. Without a policy, an autonomous agent could delete critical data in a loop with no way to undo the damage. PolicyLayer blocks destructive tools by default and requires explicit human approval before enabling them.

Without a policy, an AI agent could call forget in a loop, permanently destroying resources in Nexus Memory. There is no undo for destructive operations. PolicyLayer blocks this tool by default and only allows it when a human explicitly approves the action.

Destructive tools permanently remove data. Block by default. Only enable with explicit approval workflows.

policy.json
{
  "version": "1",
  "default": "deny",
  "hide": [
    "forget"
  ]
}

See the full Nexus Memory policy for all 10 tools.

Get this rule live on your own Nexus Memory server in minutes. PolicyLayer enforces it on every call, before it runs.

ENFORCE ON MY NEXUS MEMORY →

View all 10 tools →

These attack patterns abuse exactly the kind of access forget gives an agent. Each links to the full case and the policy that stops it:

Browse the full MCP Attack Database →

Every attack above starts with a tool call. PolicyLayer checks each one against your policy first, so forget only ever does what you allow.

SECURE NEXUS MEMORY →

Other destructive tools across the catalogue. The same approach applies to each: deny by default, or require human approval.

What does the forget tool do? +

Remove a memory. Use sparingly.. It is categorised as a Destructive tool in the Nexus Memory MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on forget? +

Register the Nexus Memory 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 Nexus Memory. Nothing to install.

What risk level is forget? +

forget is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit forget? +

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.

How do I block forget completely? +

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.

What MCP server provides forget? +

forget is provided by the Nexus Memory MCP server (nexus-memory-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Nexus Memory tool call.

Deterministic rules across all 10 Nexus Memory tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

Free to start. No card required.

4,600+ MCP servers and 31,000+ tools scanned and risk-classified.

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