AI agents use create_webhook 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 is classified as Write rather than Execute because the tool creates/registers a configuration object (the webhook) rather than immediately executing code. However, severity is high because webhooks typically trigger automated downstream actions on future events, and misconfiguration could cause unintended automation loops, data exposure through webhook URL leakage, or execution of unexpected business logic.
From the tool's definition Create a new webhook subscription - this tool creates a persistent integration point that will trigger automated actions.
Documented attack patterns abuse exactly the kind of access create_webhook 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 create_webhook:
{
"version": "1",
"default": "deny",
"tools": {
"create_webhook": {
"limits": [
{
"counter": "create_webhook_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}create_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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Create a new webhook subscription. 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 create_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 GoHighLevel MCP Server. Nothing to install.
create_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 create_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 create_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.
create_webhook is provided by the GoHighLevel MCP Server MCP server (busybee3333/go-high-level-mcp-2026-complete). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 566 GoHighLevel MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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566 GoHighLevel MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.