Check if a URL slug is available for use. Use this before creating or updating blog posts to ensure unique URLs.
AI agents call check_url_slug to retrieve information from GoHighLevel MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a simple lookup/query to verify URL slug availability. It retrieves information (availability status) but does not create, modify, delete, or execute any operations. The action is read-only and informational, used to inform subsequent decisions. Classification as Read is appropriate.
From the tool's definition Tool name 'check_url_slug' and description 'Check if a URL slug is available' indicate a query operation that retrieves availability status without modifying data. No side effects or state changes occur.
Documented attack patterns abuse exactly the kind of access check_url_slug 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 check_url_slug:
{
"version": "1",
"default": "deny",
"tools": {
"check_url_slug": {}
}
}check_url_slug is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Check if a URL slug is available for use. Use this before creating or updating blog posts to ensure unique URLs. It is categorised as a Read tool in the GoHighLevel MCP Server MCP Server, which means it retrieves data without modifying state.
Register the GoHighLevel MCP Server MCP server in PolicyLayer and add a rule for check_url_slug: 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.
check_url_slug is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the check_url_slug 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 check_url_slug. 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.
check_url_slug 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.
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255 GoHighLevel MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.