AI agents call initshutdown_delete to permanently remove resources in Truenas — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
The tool permanently removes an init/shutdown script, which cannot be undone without recreating it. This is a destructive operation that could disrupt system startup/shutdown sequences if the wrong script is deleted. While not as critical as deleting all storage, it represents an irreversible data loss action warranting the Destructive category and high severity due to potential system instability impacts.
From the tool's definition Tool name contains 'delete' and description states 'Delete an init/shutdown script' — this irreversibly removes a script that executes during system initialization or shutdown.
Documented attack patterns abuse exactly the kind of access initshutdown_delete gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Truenas, and nothing reaches the server without passing your rules. This is the rule we recommend for initshutdown_delete:
{
"version": "1",
"default": "deny",
"hide": [
"initshutdown_delete"
]
}initshutdown_delete disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.
Free to start. No card required.
Delete an init/shutdown script. It is categorised as a Destructive tool in the Truenas MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Truenas MCP server in PolicyLayer and add a rule for initshutdown_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 Truenas. Nothing to install.
initshutdown_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 initshutdown_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 initshutdown_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.
initshutdown_delete is provided by the Truenas MCP server (spranab/truenas-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Truenas, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
279 Truenas tools catalogued and risk-classified — across an index of 43,000+ MCP servers.