Search for available phone numbers to purchase
AI agents call search_available_numbers 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 read-only search operation to query available phone numbers in an inventory system. While the context suggests these numbers could be purchased (a financial action), the tool itself only retrieves and displays available options—it does not execute the purchase, process payments, or commit any financial obligation. The actual purchasing would be a separate transaction handled by a different tool.
From the tool's definition The tool name is 'search_available_numbers' and the description states it 'Search[es] for available phone numbers to purchase'. This is a search/query operation that retrieves information about available inventory with no side effects.
Documented attack patterns abuse exactly the kind of access search_available_numbers 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 search_available_numbers:
{
"version": "1",
"default": "deny",
"tools": {
"search_available_numbers": {}
}
}search_available_numbers is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Search for available phone numbers to purchase. 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 search_available_numbers: 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.
search_available_numbers 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 search_available_numbers 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 search_available_numbers. 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.
search_available_numbers 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.