Add a new lead to a campaign.
AI agents use smartlead_add_lead_to_campaign to create or update resources in Smartlead Simplified MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Smartlead Simplified MCP Server environment.
The tool creates or modifies data (adding a lead to an existing campaign) without permanently destroying it and without executing arbitrary code or moving money. It falls squarely into the Write category. Severity is medium because misuse could spam large numbers of unintended recipients with campaign emails, but the action is reversible and the blast radius is limited to email recipient scope.
From the tool's definition Tool name 'add_lead_to_campaign' and description 'Add a new lead to a campaign' indicate creation/modification of campaign data. This is a reversible write operation—leads can be removed or campaigns modified.
Documented attack patterns abuse exactly the kind of access smartlead_add_lead_to_campaign gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Smartlead Simplified MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for smartlead_add_lead_to_campaign:
{
"version": "1",
"default": "deny",
"tools": {
"smartlead_add_lead_to_campaign": {
"limits": [
{
"counter": "smartlead_add_lead_to_campaign_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}smartlead_add_lead_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.
Free to start. No card required.
Add a new lead to a campaign. It is categorised as a Write tool in the Smartlead Simplified MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Smartlead Simplified MCP Server MCP server in PolicyLayer and add a rule for smartlead_add_lead_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 Smartlead Simplified MCP Server. Nothing to install.
smartlead_add_lead_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 smartlead_add_lead_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 smartlead_add_lead_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.
smartlead_add_lead_to_campaign is provided by the Smartlead Simplified MCP Server MCP server (jonathan-politzki/smartlead-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Smartlead Simplified MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
78 Smartlead Simplified MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.