dual_register · DUAL MCP Server MCP: Risk & Policy

WHAT IT DOES

What dual_register does on DUAL MCP Server

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

WHY IT NEEDS A POLICY

Why dual_register needs a policy

Creating a wallet account is a write operation that establishes a new resource in the system. While wallet creation itself is reversible (account could theoretically be deactivated), it is a state-altering action on Web3 infrastructure.

From the tool's definition Tool description states 'Create a new wallet account' — a reversible write operation that modifies state by adding a new resource to the system. The blockchain wallet creation is foundational state change.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

dual_register Rate-limited

dual_register 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": {
    "dual_register": {
      "limits": [
        {
          "counter": "dual_register_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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Instant setup, no code required.

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

FAQ

Questions about dual_register

What does the dual_register tool do? +

Create a new wallet account. A verification code will be sent to the email/phone provided. It is categorised as a Write tool in the DUAL MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on dual_register? +

Register the DUAL MCP Server MCP server in PolicyLayer and add a rule for dual_register: 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 DUAL MCP Server. Nothing to install.

What risk level is dual_register? +

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

Can I rate-limit dual_register? +

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

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

dual_register is provided by the DUAL MCP Server MCP server (ro-ro-b/dual-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.