create_setup_link · Token of Esteem MCP: Risk & Policy

WHAT IT DOES

What create_setup_link does on Token of Esteem

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

WHY IT NEEDS A POLICY

Why create_setup_link needs a policy

Saving a card via a Stripe setup link establishes a payment method tied to a user's account, enabling future charges. This commits a financial instrument to the system and is a prerequisite for financial transactions. Combined with the server's context of commissioning paid print gifts, this tool directly facilitates financial obligations.

From the tool's definition hosted Stripe link to save a card

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_setup_link Approval-gated

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

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FAQ

Questions about create_setup_link

What does the create_setup_link tool do? +

hosted Stripe link to save a card. It is categorised as a Financial tool in the Token of Esteem MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on create_setup_link? +

Register the Token of Esteem MCP server in PolicyLayer and add a rule for create_setup_link: 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 Token of Esteem. Nothing to install.

What risk level is create_setup_link? +

create_setup_link 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 create_setup_link? +

Yes. Add a rate_limit block to the create_setup_link 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 create_setup_link completely? +

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

create_setup_link is provided by the Token of Esteem MCP server (tokenofesteem/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.