Delete a snapshot. Requires confirm=True.
AI agents call snapshot_delete to permanently remove resources in Libvirt — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Deleting a snapshot is an irreversible action; once a snapshot is removed, it cannot be recovered. This fits the Destructive category with high severity since it permanently eliminates a point-in-time recovery option for a virtual machine.
From the tool's definition 'Delete a snapshot' — explicitly removes a snapshot irreversibly. 'Requires confirm=True' indicates the action is intentionally guarded due to its destructive nature.
Attacks that exploit this kind of access
Delete a snapshot. Requires confirm=True. It is categorised as a Destructive tool in the Libvirt MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Libvirt MCP server in PolicyLayer and add a rule for snapshot_delete: 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 Libvirt. Nothing to install.
snapshot_delete 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 snapshot_delete 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 snapshot_delete. 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.
snapshot_delete is provided by the Libvirt MCP server (rzippert/libvirt-mcp). 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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