list_teammate_contact_lists

THE RISK

Low Risk

Why list_teammate_contact_lists needs a policy

This tool retrieves and displays contact list metadata for a teammate. It is purely informational and read-only, with no capability to modify, delete, or trigger external actions. The blast radius of accidental misuse is minimal — at most, an AI agent would retrieve contact list information that should already be accessible within the organization.

From the tool's definition Tool name contains 'list' and description states 'List contact lists' — a retrieval operation with no side effects. The function queries existing data about a teammate's contact lists without modifying, deleting, or executing any external operations.

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

POLICY

How to control list_teammate_contact_lists

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

policy.json

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

list_teammate_contact_lists 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 Frontapp 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 →

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EXPLORE

Related tools and policies

More Frontapp MCP Server tools

Destructive delete_account Delete an account Destructive delete_contact Delete a contact Destructive delete_contact_group Delete a contact group Destructive delete_contact_handle Delete a handle from a contact Destructive delete_contact_list Delete a contact list Destructive delete_conversation_followers Remove followers from a conversation Destructive delete_draft Delete a draft Destructive delete_message_template Delete a message template

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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_teammate_contact_lists

What does the list_teammate_contact_lists tool do? +

List contact lists for a teammate. It is categorised as a Read tool in the Frontapp MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_teammate_contact_lists? +

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

What risk level is list_teammate_contact_lists? +

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

Can I rate-limit list_teammate_contact_lists? +

Yes. Add a rate_limit block to the list_teammate_contact_lists 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_teammate_contact_lists completely? +

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

list_teammate_contact_lists is provided by the Frontapp MCP Server MCP server (zqushair/frontapp-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Frontapp MCP Server tool call.

Start from Frontapp 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 →