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 retrieves metadata about custom fields associated with an object in the GoHighLevel CRM system. It performs no creation, modification, deletion, or execution of external operations. The blast radius of misuse is minimal - an unauthorized read of field schemas would constitute information disclosure but cannot harm data integrity or cause financial impact. Classified as Read with low severity.
From the tool's definition Tool description states 'Get all custom fields and folders for a specific object key' - this is a retrieval operation with no side effects. The verb 'Get' indicates read-only querying of existing data.
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 (tailormadeweddings/gohighlevel-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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