刪除指定的備份文件
AI agents call delete_backup 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 backup files without opportunity for recovery, fitting the Destructive category definition of irreversibly deleting data. While backups are typically secondary copies, their deletion removes a critical safety mechanism and recovery option, warranting high severity. An AI agent misusing this could eliminate important data recovery capabilities.
From the tool's definition Tool name 'delete_backup' and description '刪除指定的備份文件' (delete specified backup file) explicitly perform deletion of backup data, which is irreversible.
Attacks that exploit this kind of access
刪除指定的備份文件. 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_backup: 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_backup 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_backup 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_backup. 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_backup 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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