List all available alert policies. Policies define how alerts are escalated and delivered.
AI agents call alert_policies to retrieve information from Truenas without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries existing alert policy definitions without modifying, executing, or deleting any data. It is a pure read operation that returns information about how alerts are configured for delivery and escalation. The blast radius of misuse is minimal as it only exposes configuration metadata without enabling unauthorized actions.
From the tool's definition Tool name is 'alert_policies' and description states 'List all available alert policies' - the verb 'List' indicates a retrieval operation with no side effects.
Documented attack patterns abuse exactly the kind of access alert_policies 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 alert_policies:
{
"version": "1",
"default": "deny",
"tools": {
"alert_policies": {}
}
}alert_policies is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List all available alert policies. Policies define how alerts are escalated and delivered. It is categorised as a Read tool in the Truenas MCP Server, which means it retrieves data without modifying state.
Register the Truenas MCP server in PolicyLayer and add a rule for alert_policies: 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.
alert_policies is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the alert_policies 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 alert_policies. 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.
alert_policies 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.