cancel_scheduled_message

Cancel a scheduled message before it is sent

SERVERGoHighLevel MCP Server SOURCEhooker-dev/hailey-mcp

Critical RISK CLASS

Category Destructive

Parameters 00 required

Recommended Hiddensee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/hooker-dev-hailey-mcp/cancel-scheduled-message.md

WHAT IT DOES

What cancel_scheduled_message does on GoHighLevel MCP Server

AI agents call cancel_scheduled_message to permanently remove resources in GoHighLevel MCP Server, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

RISK

Why cancel_scheduled_message is rated Critical

Cancelling a scheduled message is an irreversible action — once cancelled, the scheduled delivery is permanently removed and cannot be restored. This aligns with the Destructive category as the scheduled state is permanently lost, even though no data record is deleted per se. The blast radius is medium since it affects pending outbound communications that may be time-sensitive for marketing or sales workflows.

From the tool's definition Cancel a scheduled message before it is sent

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs cancel_scheduled_message safely

PolicyLayer is an MCP gateway: it sits between your AI agents and GoHighLevel MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For cancel_scheduled_message, this is the rule to start with:

cancel_scheduled_message Hidden

cancel_scheduled_message is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "cancel_scheduled_message"
  ]
}

RESTRICT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect GoHighLevel MCP Server, apply this rule, and every cancel_scheduled_message call is checked against it from then on.

FAQ

Questions about cancel_scheduled_message

What does the cancel_scheduled_message tool do? +

Cancel a scheduled message before it is sent. It is categorised as a Destructive tool in the GoHighLevel MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on cancel_scheduled_message? +

Register the GoHighLevel MCP Server MCP server in PolicyLayer and add a rule for cancel_scheduled_message: 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 GoHighLevel MCP Server. Nothing to install.

What risk level is cancel_scheduled_message? +

cancel_scheduled_message is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit cancel_scheduled_message? +

Yes. Add a rate_limit block to the cancel_scheduled_message 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.

How do I block cancel_scheduled_message completely? +

Set action: deny in the PolicyLayer policy for cancel_scheduled_message. 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.

What MCP server provides cancel_scheduled_message? +

cancel_scheduled_message is provided by the GoHighLevel MCP Server MCP server (hooker-dev/hailey-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on GoHighLevel MCP Server, and thousands of servers like it.

This server

All 255 GoHighLevel MCP Server tools → Critical-risk tools on this server →

Across the catalogue

sms_cancel_scheduled on Twilio SMS MCP Server →cancel_all_orders on Lighter MCP → All critical-risk MCP tools → The MCP Attack Database →

Guides

Govern database agents →Blast radius →Tool call approval →