This record as markdown: /tools/nasbridge/iscsi-portal-delete.md
What iscsi_portal_delete does on Nasbridge
AI agents call iscsi_portal_delete to permanently remove resources in Nasbridge, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Why iscsi_portal_delete is rated Critical
Deleting an iSCSI portal removes network portal configuration used for iSCSI target access. This is an irreversible operation that could disrupt iSCSI service connectivity and storage access for clients. While not data deletion itself, portal deletion is a destructive system configuration change that cannot be easily recovered without reconfiguration.
From the tool's definition Tool name contains 'delete' and description states 'Delete an iSCSI portal'. The verb 'delete' is explicitly listed in the Destructive category rules as an irreversible action that cannot be undone.
Attacks that exploit this kind of access
The rule that runs iscsi_portal_delete safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Nasbridge, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For iscsi_portal_delete, this is the rule to start with:
iscsi_portal_delete is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect Nasbridge, apply this rule, and every iscsi_portal_delete call is checked against it from then on.
Questions about iscsi_portal_delete
Delete an iSCSI portal. It is categorised as a Destructive tool in the Nasbridge MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Nasbridge MCP server in PolicyLayer and add a rule for iscsi_portal_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 Nasbridge. Nothing to install.
iscsi_portal_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 iscsi_portal_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 iscsi_portal_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.
iscsi_portal_delete is provided by the Nasbridge MCP server (maverick0628/nasbridge). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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