cancel_instance

Cancel your subscription and deactivate one private subscribed instance.

SERVERProAgentStore SOURCEhttps://mcp.proagentstore.online/mcp

Critical RISK CLASS

Category Financial

Parameters 00 required

Recommended Approval-gatedsee the rule below

Registry record Grade D, identity unverified Pull the record →

This record as markdown: /tools/io-github-proagentstore-platform/cancel-instance.md

WHAT IT DOES

What cancel_instance does on ProAgentStore

AI agents use cancel_instance to commit financial operations through ProAgentStore, usually the final step of a payment, billing, or trading workflow. A call moves real money.

RISK

Why cancel_instance is rated Critical

This tool cancels a subscription, which is a financial action (terminating a financial commitment/obligation). It also deactivates an instance, making it potentially destructive/irreversible. Financial is the highest severity category and applies here since a subscription cancellation directly affects billing and financial commitments.

From the tool's definition Cancel your subscription and deactivate one private subscribed instance

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs cancel_instance safely

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

cancel_instance Approval-gated

Any call to cancel_instance is blocked until a human approves it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "cancel_instance": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}

GATE THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about cancel_instance

What does the cancel_instance tool do? +

Cancel your subscription and deactivate one private subscribed instance. It is categorised as a Financial tool in the ProAgentStore MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on cancel_instance? +

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

What risk level is cancel_instance? +

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

Can I rate-limit cancel_instance? +

Yes. Add a rate_limit block to the cancel_instance 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_instance completely? +

Set action: deny in the PolicyLayer policy for cancel_instance. 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_instance? +

cancel_instance is provided by the ProAgentStore MCP server (https://mcp.proagentstore.online/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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