payments_get_custom_field_types
A read tool on the ServiceTitan MCP server.
This record as markdown: /tools/jordandalton-servicetitanmcpserver/payments-get-custom-field-types.md
What payments_get_custom_field_types does on ServiceTitan MCP Server
AI agents call payments_get_custom_field_types to retrieve information from ServiceTitan MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why payments_get_custom_field_types is rated Low
The tool appears to retrieve metadata about custom field types associated with payments, likely returning configuration or schema information. The 'get' verb indicates a read-only operation with no side effects. While it operates in the payments domain (which could be financial context), the operation itself is merely querying field type definitions, not moving money or creating financial obligations.
From the tool's definition Tool name 'payments_get_custom_field_types' contains 'get' which indicates data retrieval. The naming pattern matches sibling tools like 'activities_controllers_get', 'activity_categories_get', and 'adjustments_get_list' which are read operations.
Attacks that exploit this kind of access
The rule that runs payments_get_custom_field_types safely
PolicyLayer is an MCP gateway: it sits between your AI agents and ServiceTitan MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For payments_get_custom_field_types, this is the rule to start with:
payments_get_custom_field_types is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect ServiceTitan MCP Server, apply this rule, and every payments_get_custom_field_types call is checked against it from then on.
Questions about payments_get_custom_field_types
payments_get_custom_field_types is a read tool on the ServiceTitan MCP Server MCP server. It is categorised as a Read tool in the ServiceTitan MCP Server MCP Server, which means it retrieves data without modifying state.
Register the ServiceTitan MCP Server MCP server in PolicyLayer and add a rule for payments_get_custom_field_types: 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 ServiceTitan MCP Server. Nothing to install.
payments_get_custom_field_types 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 payments_get_custom_field_types 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 payments_get_custom_field_types. 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.
payments_get_custom_field_types is provided by the ServiceTitan MCP Server MCP server (jordandalton/servicetitanmcpserver). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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