pool_attachments

Get services and resources attached to a pool

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/pool-attachments.md

WHAT IT DOES

What pool_attachments does on Truenas

AI agents call pool_attachments 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 pool_attachments is rated Low

This tool queries and retrieves information about services and resources associated with a storage pool. The verb 'Get' explicitly indicates a read-only operation that returns data without creating, modifying, deleting, or executing any operations. It poses minimal security risk as it only exposes visibility into existing pool attachments.

From the tool's definition Tool name 'pool_attachments' with description 'Get services and resources attached to a pool' indicates a retrieval operation with no modification or side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

pool_attachments Allowed

pool_attachments 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": {
    "pool_attachments": {}
  }
}

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 pool_attachments call is checked against it from then on.

FAQ

Questions about pool_attachments

What does the pool_attachments tool do? +

Get services and resources attached to a pool. 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 pool_attachments? +

Register the Truenas MCP server in PolicyLayer and add a rule for pool_attachments: 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 pool_attachments? +

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

Can I rate-limit pool_attachments? +

Yes. Add a rate_limit block to the pool_attachments 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 pool_attachments completely? +

Set action: deny in the PolicyLayer policy for pool_attachments. 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 pool_attachments? +

pool_attachments 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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