reverse_charge · Omise MCP Server MCP: Risk & Policy

WHAT IT DOES

What reverse_charge does on Omise MCP Server

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

WHY IT NEEDS A POLICY

Why reverse_charge needs a policy

This tool directly moves or reverses money in financial accounts. Even though reversal is technically reversible (unlike deletion), it is fundamentally a financial operation that commits or cancels financial obligations. Financial tools carry the highest severity due to their potential to cause direct monetary loss or unauthorized transfers.

From the tool's definition Tool name 'reverse_charge' with description 'Reverse an authorized charge' directly operates on financial transactions.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

reverse_charge Approval-gated

Any call to reverse_charge 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": {
    "reverse_charge": {
      "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 Omise MCP Server, so you can run agents against it safely.

FAQ

Questions about reverse_charge

What does the reverse_charge tool do? +

Reverse an authorized charge. It is categorised as a Financial tool in the Omise MCP Server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on reverse_charge? +

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

What risk level is reverse_charge? +

reverse_charge 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 reverse_charge? +

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

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

reverse_charge is provided by the Omise MCP Server MCP server (jun-omise/omise-mcp-alpha). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.