search_products

THE RISK

Low Risk

Why search_products needs a policy

This tool performs a search/query operation on a marketplace catalog. It retrieves data but does not create, modify, delete, or execute any operations. The blast radius of misuse is minimal—an agent could perform excessive searches but cannot cause financial harm, data loss, or unwanted transactions through search alone. Confidence is high because the function name and description are explicit and unambiguous.

From the tool's definition Tool name 'search_products' and description 'Search products in Mercado Libre marketplace' indicate a read-only query operation that retrieves product information without modification or side effects.

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

POLICY

How to control search_products

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 search_products:

policy.json

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

search_products 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 →

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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 search_products

What does the search_products tool do? +

Search products in Mercado Libre marketplace. 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 search_products? +

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

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

Can I rate-limit search_products? +

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

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

search_products 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 →