install_dsm_update · Synology MCP Server MCP: Risk & Policy

WHAT IT DOES

What install_dsm_update does on Synology MCP Server

AI agents invoke install_dsm_update to trigger actions in Synology MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why install_dsm_update needs a policy

This tool triggers a multi-step external operation: downloading firmware, installing it on the NAS operating system, and forcing a system reboot. While not purely destructive (data isn't deleted), it executes privileged system-level operations that could cause outages, break configurations, or render the NAS temporarily or permanently inoperable if misused. The [control][power] tags confirm elevated system control.

From the tool's definition Download and install an available DSM update, then reboot. [control][power]

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

install_dsm_update Rate-limited

install_dsm_update stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "install_dsm_update": {
      "limits": [
        {
          "counter": "install_dsm_update_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

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PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Synology MCP Server, so you can run agents against it safely.

FAQ

Questions about install_dsm_update

What does the install_dsm_update tool do? +

Download and install an available DSM update, then reboot. [control][power]. It is categorised as a Execute tool in the Synology MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on install_dsm_update? +

Register the Synology MCP Server MCP server in PolicyLayer and add a rule for install_dsm_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 Synology MCP Server. Nothing to install.

What risk level is install_dsm_update? +

install_dsm_update is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit install_dsm_update? +

Yes. Add a rate_limit block to the install_dsm_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 install_dsm_update completely? +

Set action: deny in the PolicyLayer policy for install_dsm_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 install_dsm_update? +

install_dsm_update is provided by the Synology MCP Server MCP server (rafalr100/synology-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.