Delete a watchlist to free server resources before timeout.
AI agents call delete_watchlist to permanently remove resources in Wago Plc — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool irreversibly deletes data (a watchlist) from the PLC monitoring system. Although the impact is scoped to a single watchlist resource rather than critical infrastructure state, deletion of watchlists could disrupt ongoing monitoring activities and cannot be reversed without manual restoration.
From the tool's definition The tool is named 'delete_watchlist' and the description states it will 'Delete a watchlist' — this is an explicit deletion operation that cannot be undone.
Attacks that exploit this kind of access
Delete a watchlist to free server resources before timeout. It is categorised as a Destructive tool in the Wago Plc MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Wago Plc MCP server in PolicyLayer and add a rule for delete_watchlist: 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 Wago Plc. Nothing to install.
delete_watchlist 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 delete_watchlist 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 delete_watchlist. 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.
delete_watchlist is provided by the Wago Plc MCP server (wagoalex/wago-plc-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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