Get all custom fields and folders for a specific object key (e.g., custom object or company).
AI agents call ghl_get_custom_fields_by_object_key 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 queries configuration data (custom fields and folders) for a specified object without creating, modifying, deleting, or executing operations. The blast radius if misused is minimal—an agent could only retrieve metadata about custom field structures, not access actual contact/record data or trigger actions. This is a straightforward data retrieval with no side effects.
From the tool's definition Tool description states 'Get all custom fields and folders' - a retrieval operation with no modification or execution capability. The 'get' verb and read-only nature align with the Read category definition.
Attacks that exploit this kind of access
Get all custom fields and folders for a specific object key (e.g., custom object or company). 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 ghl_get_custom_fields_by_object_key: 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.
ghl_get_custom_fields_by_object_key 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 ghl_get_custom_fields_by_object_key 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 ghl_get_custom_fields_by_object_key. 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.
ghl_get_custom_fields_by_object_key is provided by the GoHighLevel MCP Server MCP server (keshigami/ghl-mcp-workiong). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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