list_collects

THE RISK

Low Risk

Why list_collects needs a policy

This tool retrieves or queries product-to-collection mappings with no side effects. It follows the 'list' pattern characteristic of Read operations. No data is created, modified, deleted, or used for financial/execution purposes.

From the tool's definition Tool name 'list_collects' and description 'List product-to-collection mappings (collects)' indicate a read-only retrieval operation that queries existing data without modification.

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

POLICY

How to control list_collects

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

policy.json

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

list_collects 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 Sapo — 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 list_collects

What does the list_collects tool do? +

List product-to-collection mappings (collects). It is categorised as a Read tool in the Sapo MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_collects? +

Register the Sapo MCP server in PolicyLayer and add a rule for list_collects: 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 Sapo. Nothing to install.

What risk level is list_collects? +

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

Can I rate-limit list_collects? +

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

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

list_collects is provided by the Sapo MCP server (nguyennguyenit/sapo-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Sapo tool call.

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

CHECK YOUR STACK →