remove_contacts_from_group

THE RISK

Medium Risk

Why remove_contacts_from_group needs a policy

Removing contacts from a group is a reversible write operation — the contacts still exist and can be re-added to the group. It modifies group membership but does not delete any underlying data, making it a Write rather than Destructive action.

From the tool's definition Remove contacts from a contact group

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

POLICY

How to control remove_contacts_from_group

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 remove_contacts_from_group:

policy.json

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

remove_contacts_from_group 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 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.

LIMIT 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

All 151 Frontapp MCP Server tools →

Write tools on other servers

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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 remove_contacts_from_group

What does the remove_contacts_from_group tool do? +

Remove contacts from a contact group. 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.

How do I enforce a policy on remove_contacts_from_group? +

Register the Frontapp MCP Server MCP server in PolicyLayer and add a rule for remove_contacts_from_group: 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 remove_contacts_from_group? +

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

Can I rate-limit remove_contacts_from_group? +

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

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

remove_contacts_from_group 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.

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