smartlead_delete_lead

THE RISK

Critical Risk

Why smartlead_delete_lead needs a policy

Permanent deletion of data is a destructive operation with no undo capability. Once a lead is deleted, it cannot be recovered. This warrants a Destructive classification with high severity given that the blast radius includes loss of business-critical customer/prospect data in an email marketing context.

From the tool's definition The tool is named 'smartlead_delete_lead' and the description states it will 'Delete a lead permanently.' The word 'permanently' indicates this action is irreversible.

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

POLICY

How to control smartlead_delete_lead

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_delete_lead:

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "smartlead_delete_lead"
  ]
}

smartlead_delete_lead disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.

Create a free account and register Smartlead Simplified 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.

RESTRICT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Smartlead Simplified MCP Server tools

Financial smartlead_place_order_mailboxes Confirm and place order for domains and mailboxes to be purchased. Destructive smartlead_delete_campaign Delete a campaign permanently. Destructive smartlead_delete_campaign_webhook Delete a specific webhook from a campaign. Destructive smartlead_delete_folder Delete a folder from Smart Delivery. Destructive smartlead_delete_smart_delivery_tests Delete multiple Smart Delivery tests in bulk. Destructive smartlead_remove_email_from_campaign Remove an email account from a campaign. Execute smartlead_stop_automated_test Stop an active automated test before its end date. Execute smartlead_retrigger_failed_events Retrigger failed webhook events (Private Beta feature).

All 78 Smartlead Simplified MCP Server tools →

Destructive tools on other servers

Android Forensics ADB MCP Server create_full_backup 0xarchive web3_revoke_key Frida Game Hacking MCP clear_scan cPanel MCP Server clear_spam_box

Go deeper

Critical-risk tools in Smartlead Simplified MCP Server → Every critical-risk tool this server exposes, in one view.
All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Blast radius → How much damage one compromised or confused agent can do — and how to bound it.
Tool call approval → Approval gates on individual tool calls: auto-allow, prompt, or deny.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about smartlead_delete_lead

What does the smartlead_delete_lead tool do? +

Delete a lead permanently. It is categorised as a Destructive tool in the Smartlead Simplified MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on smartlead_delete_lead? +

Register the Smartlead Simplified MCP Server MCP server in PolicyLayer and add a rule for smartlead_delete_lead: 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.

What risk level is smartlead_delete_lead? +

smartlead_delete_lead is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit smartlead_delete_lead? +

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

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

smartlead_delete_lead 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.

Enforce policy on every Smartlead Simplified MCP Server tool call.

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.

CHECK YOUR STACK →