retrieve_document

THE RISK

Low Risk

Why retrieve_document needs a policy

This tool retrieves document metadata, which is a passive data lookup operation with no side effects. It does not create, modify, delete, or execute any operations. In the context of an Argentine tax authority system, retrieving invoice or document metadata is a standard read operation with minimal risk if accessed without authorization. The blast radius is limited to information disclosure.

From the tool's definition Tool name is 'retrieve_document' and description states 'Retrieve document metadata by id' — both clearly indicate a read-only operation that queries existing data without modification.

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

POLICY

How to control retrieve_document

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 retrieve_document:

policy.json

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

retrieve_document 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.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

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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 retrieve_document

What does the retrieve_document tool do? +

Retrieve document metadata by id. 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 retrieve_document? +

Register the Mcp Afip MCP server in PolicyLayer and add a rule for retrieve_document: 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 retrieve_document? +

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

Can I rate-limit retrieve_document? +

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

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

retrieve_document 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 →