charge_tab · Remit Md MCP Server MCP: Risk & Policy

WHAT IT DOES

What charge_tab does on Remit Md MCP Server

AI agents use charge_tab to commit financial operations through Remit Md MCP Server — usually the final step of a payment, billing, or trading workflow. A call moves real money.

WHY IT NEEDS A POLICY

Why charge_tab needs a policy

This tool moves money or commits financial obligations by charging a metered tab, directly extracting value from an account. The EIP-712 signature mechanism confirms cryptographic authorization of fund transfers.

From the tool's definition Tool name 'charge_tab' combined with description 'Charge a metered tab for usage' indicates direct monetary transaction initiation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

charge_tab Approval-gated

Any call to charge_tab is blocked until a human approves it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "charge_tab": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}

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

FAQ

Questions about charge_tab

What does the charge_tab tool do? +

Charge a metered tab for usage (provider-side). Requires an EIP-712 TabCharge signature from the provider. It is categorised as a Financial tool in the Remit Md MCP Server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on charge_tab? +

Register the Remit Md MCP Server MCP server in PolicyLayer and add a rule for charge_tab: 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 Remit Md MCP Server. Nothing to install.

What risk level is charge_tab? +

charge_tab is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit charge_tab? +

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

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

charge_tab is provided by the Remit Md MCP Server MCP server (pay-skill/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.