cancel_followup

A destructive tool on the Nitrostack MCP server.

SERVERNitrostack SOURCEnitrocloudofficial/nitrostack

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/nitrostack/cancel-followup.md

WHAT IT DOES

What cancel_followup does on Nitrostack

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

RISK

Why cancel_followup is rated Critical

An AI agent that decides to call cancel_followup doesn't hesitate, doesn't double-check, and doesn't stop at one. Whatever it removes from Nitrostack is gone. There is no undo for destructive operations.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs cancel_followup safely

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

cancel_followup Hidden

cancel_followup 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_followup"
  ]
}

RESTRICT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about cancel_followup

What does the cancel_followup tool do? +

cancel_followup is a destructive tool on the Nitrostack MCP server. It is categorised as a Destructive tool in the Nitrostack 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_followup? +

Register the Nitrostack MCP server in PolicyLayer and add a rule for cancel_followup: 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 Nitrostack. Nothing to install.

What risk level is cancel_followup? +

cancel_followup 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_followup? +

Yes. Add a rate_limit block to the cancel_followup 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_followup completely? +

Set action: deny in the PolicyLayer policy for cancel_followup. 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_followup? +

cancel_followup is provided by the Nitrostack MCP server (nitrocloudofficial/nitrostack). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Nitrostack, and thousands of servers like it.

This server

All 697 Nitrostack 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 →