Add or update a webhook for a specific campaign.
AI agents use smartlead_upsert_campaign_webhook 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.
This tool creates or modifies webhook configurations, which are reversible changes to campaign settings. It does not execute code directly, delete data, or move money. However, severity is elevated to medium because misconfigured webhooks could be redirected to attacker-controlled endpoints, potentially exposing campaign data or triggering unintended external actions.
From the tool's definition Tool description states 'Add or update a webhook for a specific campaign' — the verbs 'add' and 'update' indicate write operations that modify campaign configuration.
Documented attack patterns abuse exactly the kind of access smartlead_upsert_campaign_webhook 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_upsert_campaign_webhook:
{
"version": "1",
"default": "deny",
"tools": {
"smartlead_upsert_campaign_webhook": {
"limits": [
{
"counter": "smartlead_upsert_campaign_webhook_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}smartlead_upsert_campaign_webhook 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 or update a webhook for a specific 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_upsert_campaign_webhook: 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_upsert_campaign_webhook 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_upsert_campaign_webhook 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_upsert_campaign_webhook. 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_upsert_campaign_webhook 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.