snapshot_task_list

List periodic snapshot tasks

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/snapshot-task-list.md

WHAT IT DOES

What snapshot_task_list does on Truenas

AI agents call snapshot_task_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 snapshot_task_list is rated Low

This tool retrieves and displays information about existing snapshot tasks without creating, modifying, or deleting any data. It is a read-only operation that queries the state of the system. The blast radius is minimal as misuse would only expose information already accessible to authorized users on the TrueNAS system.

From the tool's definition Tool name 'snapshot_task_list' and description 'List periodic snapshot tasks' indicate a retrieval/query operation with no modification or side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs snapshot_task_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 snapshot_task_list, this is the rule to start with:

snapshot_task_list Allowed

snapshot_task_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": {
    "snapshot_task_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 snapshot_task_list call is checked against it from then on.

FAQ

Questions about snapshot_task_list

What does the snapshot_task_list tool do? +

List periodic snapshot tasks. 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 snapshot_task_list? +

Register the Truenas MCP server in PolicyLayer and add a rule for snapshot_task_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 snapshot_task_list? +

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

Can I rate-limit snapshot_task_list? +

Yes. Add a rate_limit block to the snapshot_task_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 snapshot_task_list completely? +

Set action: deny in the PolicyLayer policy for snapshot_task_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 snapshot_task_list? +

snapshot_task_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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