rsync_task_update

Update an existing rsync 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/rsync-task-update.md

WHAT IT DOES

What rsync_task_update does on Truenas

AI agents use rsync_task_update 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 rsync_task_update is rated Medium

This tool modifies rsync task configuration but does not delete it (which would be Destructive) or execute arbitrary commands (which would be Execute). Rsync tasks control file synchronization/replication on storage systems, so misconfigured updates could cause significant unintended data transfers or overwrites, justifying high severity.

From the tool's definition Tool name 'rsync_task_update' explicitly indicates modification of an existing rsync task. Description states 'Update an existing rsync task', which is a reversible data/configuration change operation.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

rsync_task_update Rate-limited

rsync_task_update 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": {
    "rsync_task_update": {
      "limits": [
        {
          "counter": "rsync_task_update_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 rsync_task_update call is checked against it from then on.

FAQ

Questions about rsync_task_update

What does the rsync_task_update tool do? +

Update an existing rsync 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 rsync_task_update? +

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

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

Can I rate-limit rsync_task_update? +

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

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

rsync_task_update 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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