estimate_export_size

THE RISK

Low Risk

Why estimate_export_size needs a policy

This tool only estimates/previews the size of an export without actually downloading or modifying any data. It is a pure read/query operation with no side effects.

From the tool's definition Estimate the size of a survey export before downloading

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

POLICY

How to control estimate_export_size

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

policy.json

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

estimate_export_size 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 Qualtrics MCP Server — 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

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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 estimate_export_size

What does the estimate_export_size tool do? +

Estimate the size of a survey export before downloading. Helps you decide whether to use saveToFile parameter or apply filters to reduce size. It is categorised as a Read tool in the Qualtrics MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on estimate_export_size? +

Register the Qualtrics MCP Server MCP server in PolicyLayer and add a rule for estimate_export_size: 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 Qualtrics MCP Server. Nothing to install.

What risk level is estimate_export_size? +

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

Can I rate-limit estimate_export_size? +

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

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

estimate_export_size is provided by the Qualtrics MCP Server MCP server (yrvelez/qualtrics-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Qualtrics MCP Server tool call.

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

CHECK YOUR STACK →