Create a contact list for a teammate
AI agents use create_teammate_contact_list to create or update resources in Frontapp MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Frontapp MCP Server environment.
This tool creates a new contact list resource, which is a reversible write operation. While contact lists could be deleted, the tool itself only creates/writes data. In a team collaboration context, an AI agent misusing this could create unwanted contact lists cluttering the workspace or potentially organizing contacts into lists for unintended purposes (e.g., exfiltration), raising it to medium severity.
From the tool's definition Tool name contains 'create' and description states 'Create a contact list for a teammate', indicating irreversible data creation in a customer communication platform.
Documented attack patterns abuse exactly the kind of access create_teammate_contact_list gives an agent:
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 create_teammate_contact_list:
{
"version": "1",
"default": "deny",
"tools": {
"create_teammate_contact_list": {
"limits": [
{
"counter": "create_teammate_contact_list_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}create_teammate_contact_list 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.
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Create a contact list for a teammate. It is categorised as a Write tool in the Frontapp MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Frontapp MCP Server MCP server in PolicyLayer and add a rule for create_teammate_contact_list: 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.
create_teammate_contact_list is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the create_teammate_contact_list 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.
Set action: deny in the PolicyLayer policy for create_teammate_contact_list. 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.
create_teammate_contact_list 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.
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.
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151 Frontapp MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.