create_token · Tenzro Ledger MCP: Risk & Policy

WHAT IT DOES

What create_token does on Tenzro Ledger MCP

AI agents use create_token to create or update resources in Tenzro Ledger MCP — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Tenzro Ledger MCP environment.

WHY IT NEEDS A POLICY

Why create_token needs a policy

While token creation is reversible in principle (tokens can be burned or transferred), it creates new financial instruments and potentially new liabilities/claims. This is Write rather than Financial because it doesn't directly move money or create immediate payment obligations—it creates the asset itself.

From the tool's definition Tool creates a new ERC-20 token via factory and registers it in unified registry. The verb 'create' and action of token generation represents data creation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_token Rate-limited

create_token stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "create_token": {
      "limits": [
        {
          "counter": "create_token_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

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

FAQ

Questions about create_token

What does the create_token tool do? +

Create a new ERC-20 token via the factory and register it in the unified registry. It is categorised as a Write tool in the Tenzro Ledger MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_token? +

Register the Tenzro Ledger MCP server in PolicyLayer and add a rule for create_token: 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 Tenzro Ledger MCP. Nothing to install.

What risk level is create_token? +

create_token is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit create_token? +

Yes. Add a rate_limit block to the create_token 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_token completely? +

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

create_token is provided by the Tenzro Ledger MCP server (https://canton-mcp.tenzro.network/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.