cancel_purchase_subscription · Red Bee MCP Server MCP

WHAT IT DOES

What cancel_purchase_subscription does on Red Bee MCP Server

AI agents use cancel_purchase_subscription to commit financial operations through Red Bee MCP Server — usually the final step of a payment, billing, or trading workflow. A call moves real money.

WHY IT NEEDS A POLICY

Why cancel_purchase_subscription needs a policy

Cancelling a subscription is a financial operation that affects billing and service entitlements. It modifies an active financial agreement and could result in loss of paid service or trigger cancellation penalties. This falls squarely in the Financial category, which takes precedence over all others.

From the tool's definition 'Cancels a purchased subscription' — directly terminates a financial subscription obligation

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

cancel_purchase_subscription Approval-gated

Any call to cancel_purchase_subscription 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_purchase_subscription": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}

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PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Red Bee MCP Server, so you can run agents against it safely.

FAQ

Questions about cancel_purchase_subscription

What does the cancel_purchase_subscription tool do? +

Cancels a purchased subscription. It is categorised as a Financial tool in the Red Bee MCP Server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on cancel_purchase_subscription? +

Register the Red Bee MCP Server MCP server in PolicyLayer and add a rule for cancel_purchase_subscription: 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 Red Bee MCP Server. Nothing to install.

What risk level is cancel_purchase_subscription? +

cancel_purchase_subscription 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_purchase_subscription? +

Yes. Add a rate_limit block to the cancel_purchase_subscription 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_purchase_subscription completely? +

Set action: deny in the PolicyLayer policy for cancel_purchase_subscription. 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_purchase_subscription? +

cancel_purchase_subscription is provided by the Red Bee MCP Server MCP server (tamsi/redbee-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.