add_contact_to_layout · Smokeball MCP: Risk & Policy

WHAT IT DOES

What add_contact_to_layout does on Smokeball

AI agents use add_contact_to_layout to create or update resources in Smokeball — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Smokeball environment.

WHY IT NEEDS A POLICY

Why add_contact_to_layout needs a policy

This tool creates or modifies layout configurations by adding contact associations. While reversible (contacts can presumably be removed from layouts), it represents data modification without deletion. It does not execute arbitrary code, delete data, or move money.

From the tool's definition Tool name and description indicate it adds/associates a contact to a layout instance. This is a create/modify operation that changes data state (layout configuration with contact associations).

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

add_contact_to_layout Rate-limited

add_contact_to_layout 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.

View as policy code

policy.json

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

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Smokeball, so you can run agents against it safely.

FAQ

Questions about add_contact_to_layout

What does the add_contact_to_layout tool do? +

Add a contact to a layout instance (for merge field population). It is categorised as a Write tool in the Smokeball MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on add_contact_to_layout? +

Register the Smokeball MCP server in PolicyLayer and add a rule for add_contact_to_layout: 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 Smokeball. Nothing to install.

What risk level is add_contact_to_layout? +

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

Can I rate-limit add_contact_to_layout? +

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

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

add_contact_to_layout is provided by the Smokeball MCP server (rosenadvertising/smokeball-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.