query_chargeback

THE RISK

Low Risk

Why query_chargeback needs a policy

This tool performs read-only data retrieval of chargeback dispute information. It queries existing dispute metadata without creating, modifying, deleting, or executing external operations. The blast radius of accidental misuse is minimal since it only exposes information already in the system. Confidence is high because the description clearly indicates retrieval behavior ('Retrieve...detail').

From the tool's definition Tool name contains 'query' and description states 'Retrieve chargeback detail' — it retrieves data about chargebacks (reason code, acquirer deadline, dispute amount, evidence status) with no modification or side effects.

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

POLICY

How to control query_chargeback

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

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "query_chargeback": {}
  }
}

query_chargeback is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Mcp Afip — 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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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about query_chargeback

What does the query_chargeback tool do? +

Retrieve chargeback (contestacao) detail for a charge: reason code, acquirer deadline, dispute amount, evidence status. It is categorised as a Read tool in the Mcp Afip MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on query_chargeback? +

Register the Mcp Afip MCP server in PolicyLayer and add a rule for query_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 Afip. Nothing to install.

What risk level is query_chargeback? +

query_chargeback is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit query_chargeback? +

Yes. Add a rate_limit block to the query_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 query_chargeback completely? +

Set action: deny in the PolicyLayer policy for query_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 query_chargeback? +

query_chargeback is provided by the Mcp Afip MCP server (codespar/mcp-dev-latam). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Mcp Afip tool call.

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

CHECK YOUR STACK →