add_model_device · FortiManager MCP Server MCP

WHAT IT DOES

What add_model_device does on FortiManager MCP Server

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

WHY IT NEEDS A POLICY

Why add_model_device needs a policy

This tool creates or adds a device model to FortiManager, which is a reversible write operation. While the description is empty (reducing confidence slightly), the tool name and context of FortiManager's device provisioning capabilities clearly indicate it modifies infrastructure configuration.

From the tool's definition Tool name 'add_model_device' combined with context of sibling tools (add_device, add_devices_bulk) that perform device provisioning; FortiManager is used for 'device provisioning and network configuration.' The 'add' prefix indicates data…

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

add_model_device Rate-limited

add_model_device 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": {
    "add_model_device": {
      "limits": [
        {
          "counter": "add_model_device_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

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

FAQ

Questions about add_model_device

What does the add_model_device tool do? +

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

How do I enforce a policy on add_model_device? +

Register the FortiManager MCP Server MCP server in PolicyLayer and add a rule for add_model_device: 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 FortiManager MCP Server. Nothing to install.

What risk level is add_model_device? +

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

Can I rate-limit add_model_device? +

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

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

add_model_device is provided by the FortiManager MCP Server MCP server (rstierli/fortimanager-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.