Add a label to a file or folder in Synology Drive.
AI agents use drive_add_label to create or update resources in Synology Office — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Synology Office environment.
Adding labels is a metadata modification operation that does not alter file contents, delete data, or trigger external actions. It is clearly reversible (labels can be removed). While it modifies state, the scope and impact are limited to organizational metadata.
From the tool's definition 'Add a label to a file or folder' - labels are metadata that can be added and removed without modifying file contents or destroying data. This is a reversible operation.
Documented attack patterns abuse exactly the kind of access drive_add_label gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Synology Office, and nothing reaches the server without passing your rules. This is the rule we recommend for drive_add_label:
{
"version": "1",
"default": "deny",
"tools": {
"drive_add_label": {
"limits": [
{
"counter": "drive_add_label_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}drive_add_label 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.
Free to start. No card required.
Add a label to a file or folder in Synology Drive. It is categorised as a Write tool in the Synology Office MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Synology Office MCP server in PolicyLayer and add a rule for drive_add_label: 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 Office. Nothing to install.
drive_add_label 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 drive_add_label 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 drive_add_label. 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.
drive_add_label is provided by the Synology Office MCP server (vocweb/synology-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Synology Office, 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.
39 Synology Office tools catalogued and risk-classified — across an index of 43,000+ MCP servers.