Add contact to a marketing campaign
AI agents use add_contact_to_campaign to create or update resources in GoHighLevel MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your GoHighLevel MCP Server environment.
This tool creates a new association between a contact and a campaign, modifying the campaign's contact list. This is a reversible Write operation—the contact can be removed from the campaign later. It does not execute arbitrary code, delete data irreversibly, or move money.
From the tool's definition Tool name 'add_contact_to_campaign' and description 'Add contact to a marketing campaign' indicate a create/modify operation that adds a contact to an existing campaign resource.
Documented attack patterns abuse exactly the kind of access add_contact_to_campaign gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and GoHighLevel MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for add_contact_to_campaign:
{
"version": "1",
"default": "deny",
"tools": {
"add_contact_to_campaign": {
"limits": [
{
"counter": "add_contact_to_campaign_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}add_contact_to_campaign 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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Add contact to a marketing campaign. It is categorised as a Write tool in the GoHighLevel MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the GoHighLevel MCP Server MCP server in PolicyLayer and add a rule for add_contact_to_campaign: 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 GoHighLevel MCP Server. Nothing to install.
add_contact_to_campaign 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 add_contact_to_campaign 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 add_contact_to_campaign. 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.
add_contact_to_campaign is provided by the GoHighLevel MCP Server MCP server (mastanley13/gohighlevel-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 255 GoHighLevel MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
255 GoHighLevel MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.