report_chargeback

THE RISK

Critical Risk

Why report_chargeback needs a policy

A chargeback is a financial reversal mechanism where funds are forcibly returned from merchant to customer via the payment network. Reporting a confirmed chargeback triggers financial obligations and affects payment settlements. Given the server context (Agent-to-Agent Payment Protocol), this tool directly interacts with financial transaction states.

From the tool's definition 'Report a confirmed chargeback for an order' and 'wrapper around update_order_status with status=' — involves chargeback reporting which is a financial dispute resolution action with direct payment/financial implications

Documented attack patterns abuse exactly the kind of access report_chargeback gives an agent:

POLICY

How to control report_chargeback

PolicyLayer is an MCP gateway — it sits between your AI agents and Mcp Ap2, and nothing reaches the server without passing your rules. This is the rule we recommend for report_chargeback:

policy.json

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

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

Create a free account and register Mcp Ap2 — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

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EXPLORE

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All 1300 Mcp Ap2 tools →

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Go deeper

Critical-risk tools in Mcp Ap2 → Every critical-risk tool this server exposes, in one view.
All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Human-in-the-loop → When a tool call should wait for a person — and when policy can decide alone.
Tool call approval → Approval gates on individual tool calls: auto-allow, prompt, or deny.
How to Add Spending Controls to Any MCP Agent →
Rate Limiting MCP Tool Calls: A Practical Guide →

FAQ

Questions about report_chargeback

What does the report_chargeback tool do? +

Report a confirmed chargeback for an order. Convenience wrapper around update_order_status with status=. It is categorised as a Financial tool in the Mcp Ap2 MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on report_chargeback? +

Register the Mcp Ap2 MCP server in PolicyLayer and add a rule for report_chargeback: 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 Mcp Ap2. Nothing to install.

What risk level is report_chargeback? +

report_chargeback 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 report_chargeback? +

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

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

report_chargeback is provided by the Mcp Ap2 MCP server (@codespar/mcp-ap2). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Mcp Ap2 tool call.

Start from Mcp Ap2, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →