register_nft_pointer · Tenzro Ledger MCP: Risk & Policy

WHAT IT DOES

What register_nft_pointer does on Tenzro Ledger MCP

AI agents use register_nft_pointer 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 register_nft_pointer needs a policy

This tool creates or establishes new cross-VM pointer records for NFT collections. Registration implies irreversible commitment of a new ledger entry, but does not delete data (thus not Destructive) nor move funds (not Financial).

From the tool's definition Tool performs 'Register' action on NFT collection pointer, creating/modifying cross-VM ledger references. Description explicitly states registration action (creating new data structure), not retrieval or deletion.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

register_nft_pointer Rate-limited

register_nft_pointer 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": {
    "register_nft_pointer": {
      "limits": [
        {
          "counter": "register_nft_pointer_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 register_nft_pointer

What does the register_nft_pointer tool do? +

Register a cross-VM pointer for an NFT collection. 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 register_nft_pointer? +

Register the Tenzro Ledger MCP server in PolicyLayer and add a rule for register_nft_pointer: 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 register_nft_pointer? +

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

Can I rate-limit register_nft_pointer? +

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

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

register_nft_pointer 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.