Get the options structure of a tree-type custom field.
AI agents call get_custom_field_tree_options to retrieve information from InvGate Service Desk 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 field structure (tree options) without creating, modifying, deleting, or executing operations. It is purely informational and read-only, appropriate for an AI assistant to query field configuration details in a service desk system. No data is altered, deleted, or committed as a result of calling this tool.
From the tool's definition Tool name 'get_custom_field_tree_options' and description 'Get the options structure of a tree-type custom field' both indicate a retrieval operation with no modification or side effects.
Attacks that exploit this kind of access
Get the options structure of a tree-type custom field. It is categorised as a Read tool in the InvGate Service Desk MCP Server, which means it retrieves data without modifying state.
Register the InvGate Service Desk MCP server in PolicyLayer and add a rule for get_custom_field_tree_options: 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 InvGate Service Desk. Nothing to install.
get_custom_field_tree_options 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 get_custom_field_tree_options 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 get_custom_field_tree_options. 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.
get_custom_field_tree_options is provided by the InvGate Service Desk MCP server (oci:ghcr.io/tracegazer/invgate-service-desk-mcp:0.2.0). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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