zernio_cancel_broadcast
Cancel a scheduled broadcast before it is sent.
This record as markdown: /tools/eyalm321-zernio-mcp/zernio-cancel-broadcast.md
What zernio_cancel_broadcast does on Zernio
AI agents call zernio_cancel_broadcast 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_cancel_broadcast is rated Critical
Cancelling a broadcast is an irreversible action — once cancelled, the scheduled broadcast is permanently removed and cannot be automatically restored. This goes beyond a simple write/update operation, as the scheduled event is destroyed and cannot be undone without recreating it from scratch. The blast radius is high because a broadcast may be intended for a large audience across multiple platforms.
From the tool's definition Cancel a scheduled broadcast before it is sent
Attacks that exploit this kind of access
The rule that runs zernio_cancel_broadcast 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_cancel_broadcast, this is the rule to start with:
zernio_cancel_broadcast 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_cancel_broadcast call is checked against it from then on.
Questions about zernio_cancel_broadcast
Cancel a scheduled broadcast before it is sent. 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_cancel_broadcast: 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_cancel_broadcast 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_cancel_broadcast 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_cancel_broadcast. 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_cancel_broadcast 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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