renounce_role

THE RISK

Critical Risk

Why renounce_role needs a policy

Renouncing a role on a token contract is an irreversible administrative action that permanently removes the caller's authority and cannot be recovered without cooperation from other token administrators (if any exist). This fits the Destructive category as it involves permanent loss of access/control.

From the tool's definition Tool description states 'Renounce your own role on a TIP-20 token. This is irreversible unless' - the explicit mention of 'irreversible' combined with renouncing roles (which permanently removes permissions/control) indicates an action that cannot be undone.

Documented attack patterns abuse exactly the kind of access renounce_role gives an agent:

POLICY

How to control renounce_role

PolicyLayer is an MCP gateway — it sits between your AI agents and Tempo, and nothing reaches the server without passing your rules. This is the rule we recommend for renounce_role:

policy.json

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

renounce_role disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.

Create a free account and register Tempo — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RESTRICT THIS TOOL →

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EXPLORE

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All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
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Blast radius → How much damage one compromised or confused agent can do — and how to bound it.
Tool call approval → Approval gates on individual tool calls: auto-allow, prompt, or deny.
Rate Limiting MCP Tool Calls: A Practical Guide →
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FAQ

Questions about renounce_role

What does the renounce_role tool do? +

Renounce your own role on a TIP-20 token. This is irreversible unless. It is categorised as a Destructive tool in the Tempo 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 renounce_role? +

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

What risk level is renounce_role? +

renounce_role 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 renounce_role? +

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

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

renounce_role is provided by the Tempo MCP server (arome3/tempo-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Tempo tool call.

Start from Tempo, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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