Update an existing custom value
AI agents use update_location_custom_value 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 tool modifies existing data (custom values for locations) reversibly—the update can be changed or undone with subsequent API calls. It does not delete data (would be Destructive), execute arbitrary code (would be Execute), or move money (would be Financial). The 'update' verb and reversible nature clearly place it in the Write category.
From the tool's definition Tool name 'update_location_custom_value' combined with description 'Update an existing custom value' indicates modification of existing data. The GoHighLevel context shows this is a CRM system managing locations and custom fields within business accounts.
Attacks that exploit this kind of access
Update an existing custom value. 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 update_location_custom_value: 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.
update_location_custom_value 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 update_location_custom_value 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 update_location_custom_value. 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.
update_location_custom_value is provided by the GoHighLevel MCP Server MCP server (thinkbedo/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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