update_contact

THE RISK

Medium Risk

Why update_contact needs a policy

This tool modifies contact information in a mailing list, which is a reversible write operation. It does not delete data (would be Destructive), does not move money (would be Financial), and does not execute arbitrary code (would be Execute).

From the tool's definition Tool name is 'update_contact' and description states 'Update an existing contact in a mailing list'. The verb 'update' indicates modification of existing data.

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

POLICY

How to control update_contact

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 update_contact:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "update_contact": {
      "limits": [
        {
          "counter": "update_contact_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

update_contact stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. 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.

LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Qualtrics MCP Server tools

Destructive delete_block Remove a block from a survey Destructive delete_distribution Delete a distribution Destructive delete_mailing_list Delete a mailing list Destructive delete_question Remove a question from a survey Destructive delete_response Delete a survey response Destructive delete_survey Delete a survey. Requires name confirmation as a safety measure. Destructive delete_webhook Delete an event subscription (webhook) Destructive remove_contact Remove a contact from a mailing list

All 57 Qualtrics MCP Server tools →

Write tools on other servers

M-Team MCP Server download_torrent YouTube MCP Server generate_video_title Android Forensics ADB MCP Server combine_reports 0xarchive web3_signup

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about update_contact

What does the update_contact tool do? +

Update an existing contact in a mailing list. It is categorised as a Write tool in the Qualtrics MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on update_contact? +

Register the Qualtrics MCP Server MCP server in PolicyLayer and add a rule for update_contact: 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 update_contact? +

update_contact is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit update_contact? +

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

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

update_contact 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 →