link_wallet_for_auth · Tenzro Ledger MCP: Risk & Policy

WHAT IT DOES

What link_wallet_for_auth does on Tenzro Ledger MCP

AI agents use link_wallet_for_auth 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 link_wallet_for_auth needs a policy

The tool name implies creating or modifying an association between a wallet and an authentication identity. This is a Write operation (creates/modifies data reversibly). However, since this exists in a financial/crypto context (wallet, payments, staking) and could enable unauthorized access or financial operations if misused, the severity is high. Confidence is low due to the empty description.

From the tool's definition Tool name: 'link_wallet_for_auth'; description is empty. The name suggests linking/associating a wallet for authentication purposes.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

link_wallet_for_auth Rate-limited

link_wallet_for_auth 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": {
    "link_wallet_for_auth": {
      "limits": [
        {
          "counter": "link_wallet_for_auth_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 link_wallet_for_auth

What does the link_wallet_for_auth tool do? +

link_wallet_for_auth. 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 link_wallet_for_auth? +

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

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

Can I rate-limit link_wallet_for_auth? +

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

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

link_wallet_for_auth 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.