AI agents call revert_device_revision to permanently remove resources in Fortimanager — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Reverting a device revision typically overwrites the current device configuration with a previous state, which is an irreversible destructive action. The description is empty, which lowers confidence, but the name strongly implies this behavior. In network management contexts (FortiManager), reverting a device revision would overwrite the running configuration, potentially causing service disruption.
From the tool's definition Tool name 'revert_device_revision' implies reverting to a previous device configuration revision, which overwrites current state irreversibly
Documented attack patterns abuse exactly the kind of access revert_device_revision gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Fortimanager, and nothing reaches the server without passing your rules. This is the rule we recommend for revert_device_revision:
{
"version": "1",
"default": "deny",
"hide": [
"revert_device_revision"
]
}revert_device_revision disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.
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revert_device_revision. It is categorised as a Destructive tool in the Fortimanager MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Fortimanager MCP server in PolicyLayer and add a rule for revert_device_revision: 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. Nothing to install.
revert_device_revision is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the revert_device_revision 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.
Set action: deny in the PolicyLayer policy for revert_device_revision. 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.
revert_device_revision is provided by the Fortimanager MCP server (jmpijll/fortimanager-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Fortimanager, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
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