List all active alerts on the TrueNAS system. Shows alert level, message, source, and dismissal status.
AI agents call alert_list 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 displays alert information without creating, modifying, deleting, executing code, or performing any financial operations. It is a pure read operation that queries system state and presents results to the user. The blast radius of misuse is minimal—an agent could view alerts it shouldn't have access to, but cannot alter system state through this tool alone.
From the tool's definition Tool name is 'alert_list' and description states it 'List all active alerts on the TrueNAS system. Shows alert level, message, source, and dismissal status.' The verb 'List' and action of displaying alert information indicates a read-only query operation with…
Documented attack patterns abuse exactly the kind of access alert_list 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_list:
{
"version": "1",
"default": "deny",
"tools": {
"alert_list": {}
}
}alert_list 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 active alerts on the TrueNAS system. Shows alert level, message, source, and dismissal status. 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_list: 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_list 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_list 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_list. 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_list 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.
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279 Truenas tools catalogued and risk-classified — across an index of 43,000+ MCP servers.