zernio_delete_messenger_menu
Remove the Facebook Messenger persistent menu from a connected Facebook account.
This record as markdown: /tools/eyalm321-zernio-mcp/zernio-delete-messenger-menu.md
What zernio_delete_messenger_menu does on Zernio
AI agents call zernio_delete_messenger_menu to permanently remove resources in Zernio, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Why zernio_delete_messenger_menu is rated Critical
This tool permanently deletes a configured UI element (persistent menu) from a Facebook account. While not as critical as deleting user data or financial records, it is a destructive operation that removes functionality and configuration that would need to be rebuilt.
From the tool's definition Tool description explicitly states 'Remove the Facebook Messenger persistent menu' — this is an irreversible deletion operation that cannot be undone without reconfiguration.
Attacks that exploit this kind of access
The rule that runs zernio_delete_messenger_menu safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Zernio, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For zernio_delete_messenger_menu, this is the rule to start with:
zernio_delete_messenger_menu is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect Zernio, apply this rule, and every zernio_delete_messenger_menu call is checked against it from then on.
Questions about zernio_delete_messenger_menu
Remove the Facebook Messenger persistent menu from a connected Facebook account. It is categorised as a Destructive tool in the Zernio MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Zernio MCP server in PolicyLayer and add a rule for zernio_delete_messenger_menu: 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 Zernio. Nothing to install.
zernio_delete_messenger_menu 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 zernio_delete_messenger_menu 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 zernio_delete_messenger_menu. 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.
zernio_delete_messenger_menu is provided by the Zernio MCP server (eyalm321/zernio-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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