replication_restore

Restore from a replication task

SERVERTruenas SOURCEspranab/truenas-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/spranab-truenas-mcp/replication-restore.md

WHAT IT DOES

What replication_restore does on Truenas

AI agents use replication_restore to create or update resources in Truenas, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Truenas environment.

RISK

Why replication_restore is rated Medium

This tool restores data from a replication snapshot or backup, which is a reversible write operation that modifies the target system's data. While it overwrites existing data, restoration itself is a standard data recovery operation (not a permanent deletion).

From the tool's definition Tool name 'replication_restore' and description 'Restore from a replication task' indicate restoring data from a replication source, which modifies the current system state by overwriting/populating data.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

replication_restore Rate-limited

replication_restore stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "replication_restore": {
      "limits": [
        {
          "counter": "replication_restore_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about replication_restore

What does the replication_restore tool do? +

Restore from a replication task. It is categorised as a Write tool in the Truenas MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on replication_restore? +

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

replication_restore is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit replication_restore? +

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

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

replication_restore 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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