alert_list

List all active alerts on the TrueNAS system. Shows alert level, message, source, and dismissal status.

SERVERTruenas SOURCEspranab/truenas-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/spranab-truenas-mcp/alert-list.md

WHAT IT DOES

What alert_list does on Truenas

AI agents call alert_list to retrieve information from Truenas without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why alert_list is rated Low

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…

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs alert_list safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Truenas, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For alert_list, this is the rule to start with:

alert_list Allowed

alert_list is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "alert_list": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Truenas, apply this rule, and every alert_list call is checked against it from then on.

FAQ

Questions about alert_list

What does the alert_list tool do? +

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.

How do I enforce a policy on alert_list? +

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.

What risk level is alert_list? +

alert_list is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit alert_list? +

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.

How do I block alert_list completely? +

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.

What MCP server provides alert_list? +

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.

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