AI agents use unlock_policy_package_workspace to create or update resources in Fortimanager — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Fortimanager environment.
This tool modifies the state of a policy package by releasing a lock, which is a reversible state change. While it doesn't directly delete or create data, unlocking a package enables other users or processes to modify it, making it a Write-category operation.
From the tool's definition unlock_policy_package_workspace: 'Unlock a policy package' — the verb 'unlock' indicates modification of a policy package's locked state, enabling subsequent write operations on it.
Documented attack patterns abuse exactly the kind of access unlock_policy_package_workspace 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 unlock_policy_package_workspace:
{
"version": "1",
"default": "deny",
"tools": {
"unlock_policy_package_workspace": {
"limits": [
{
"counter": "unlock_policy_package_workspace_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}unlock_policy_package_workspace 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.
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Unlock a policy package. It is categorised as a Write tool in the Fortimanager MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Fortimanager MCP server in PolicyLayer and add a rule for unlock_policy_package_workspace: 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.
unlock_policy_package_workspace is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the unlock_policy_package_workspace 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 unlock_policy_package_workspace. 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.
unlock_policy_package_workspace 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.
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