# update_custom_field Update an existing custom field Agent View of the PolicyLayer registry record for `update_custom_field`. HTML page: https://policylayer.com/tools/basicmachines-co-open-ghl-mcp/update-custom-field ## Facts - Tool: `update_custom_field` - Server: GoHighLevel MCP Server (`basicmachines-co/open-ghl-mcp`) — https://policylayer.com/tools/basicmachines-co-open-ghl-mcp.md - Homepage: https://github.com/basicmachines-co/open-ghl-mcp - Risk category: Write (Medium risk) - Registry record: grade F, identity unverified - Server rate-limited: no - Parameters: 0 - Recommended policy verdict: Rate-limited ## Example call (MCP tools/call, JSON-RPC 2.0) ```json { "jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": { "name": "update_custom_field", "arguments": {} } } ``` ## Why update_custom_field is rated Medium This tool modifies existing CRM data (custom fields) in a reversible manner. It falls under Write category as it creates or modifies data reversibly. Severity is medium because misuse could corrupt or modify critical business data in the CRM system, but the blast radius is limited to custom field definitions rather than bulk contact or financial data. From the tool's own definition: "Tool name 'update_custom_field' and description 'Update an existing custom field' indicate modification of data. The action is reversible (fields can be updated again or reverted), not destructive or financial." ## Use case AI agents use update_custom_field 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. ## Recommended policy (PolicyLayer) Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches GoHighLevel MCP Server: ```json { "version": "1", "default": "deny", "tools": { "update_custom_field": { "limits": [ { "counter": "update_custom_field_rate", "window": "minute", "max": 30, "scope": "grant" } ] } } } ``` ## Other tools on GoHighLevel MCP Server (63) - `delete_appointment` — Destructive — https://policylayer.com/tools/basicmachines-co-open-ghl-mcp/delete-appointment.md - `delete_contact` — Destructive — https://policylayer.com/tools/basicmachines-co-open-ghl-mcp/delete-contact.md - `delete_contact_note` — Destructive — https://policylayer.com/tools/basicmachines-co-open-ghl-mcp/delete-contact-note.md - `delete_contact_task` — Destructive — https://policylayer.com/tools/basicmachines-co-open-ghl-mcp/delete-contact-task.md - `delete_custom_field` — Destructive — https://policylayer.com/tools/basicmachines-co-open-ghl-mcp/delete-custom-field.md - `delete_custom_value` — Destructive — https://policylayer.com/tools/basicmachines-co-open-ghl-mcp/delete-custom-value.md - `delete_opportunity` — Destructive — https://policylayer.com/tools/basicmachines-co-open-ghl-mcp/delete-opportunity.md - `delete_user` — Destructive — https://policylayer.com/tools/basicmachines-co-open-ghl-mcp/delete-user.md - `remove_contact_from_workflow` — Destructive — https://policylayer.com/tools/basicmachines-co-open-ghl-mcp/remove-contact-from-workflow.md - `ghl_request` — Execute — https://policylayer.com/tools/basicmachines-co-open-ghl-mcp/ghl-request.md - `debug_config` — Read — https://policylayer.com/tools/basicmachines-co-open-ghl-mcp/debug-config.md - `get_all_form_submissions` — Read — https://policylayer.com/tools/basicmachines-co-open-ghl-mcp/get-all-form-submissions.md - `get_appointment` — Read — https://policylayer.com/tools/basicmachines-co-open-ghl-mcp/get-appointment.md - `get_appointments` — Read — https://policylayer.com/tools/basicmachines-co-open-ghl-mcp/get-appointments.md - `get_calendar` — Read — https://policylayer.com/tools/basicmachines-co-open-ghl-mcp/get-calendar.md - `get_calendars` — Read — https://policylayer.com/tools/basicmachines-co-open-ghl-mcp/get-calendars.md - `get_contact` — Read — https://policylayer.com/tools/basicmachines-co-open-ghl-mcp/get-contact.md - `get_contact_note` — Read — https://policylayer.com/tools/basicmachines-co-open-ghl-mcp/get-contact-note.md - `get_contact_notes` — Read — https://policylayer.com/tools/basicmachines-co-open-ghl-mcp/get-contact-notes.md - `get_contact_task` — Read — https://policylayer.com/tools/basicmachines-co-open-ghl-mcp/get-contact-task.md - `get_contact_tasks` — Read — https://policylayer.com/tools/basicmachines-co-open-ghl-mcp/get-contact-tasks.md - `get_conversation` — Read — https://policylayer.com/tools/basicmachines-co-open-ghl-mcp/get-conversation.md - `get_conversations` — Read — https://policylayer.com/tools/basicmachines-co-open-ghl-mcp/get-conversations.md - `get_custom_field` — Read — https://policylayer.com/tools/basicmachines-co-open-ghl-mcp/get-custom-field.md - `get_custom_fields` — Read — https://policylayer.com/tools/basicmachines-co-open-ghl-mcp/get-custom-fields.md - `get_custom_value` — Read — https://policylayer.com/tools/basicmachines-co-open-ghl-mcp/get-custom-value.md - `get_custom_values` — Read — https://policylayer.com/tools/basicmachines-co-open-ghl-mcp/get-custom-values.md - `get_forms` — Read — https://policylayer.com/tools/basicmachines-co-open-ghl-mcp/get-forms.md - `get_free_slots` — Read — https://policylayer.com/tools/basicmachines-co-open-ghl-mcp/get-free-slots.md - `get_messages` — Read — https://policylayer.com/tools/basicmachines-co-open-ghl-mcp/get-messages.md - …and 33 more: https://policylayer.com/tools/basicmachines-co-open-ghl-mcp.md ## For agents This record is a snapshot. Live verdicts and the full registry: - Check every server in your MCP config at once: `npx -y policylayer stack` - Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md) - Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events` --- Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=basicmachines-co-open-ghl-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/basicmachines-co-open-ghl-mcp