invoices_getcustomfieldtypes
A read tool on the ServiceTitan MCP server.
This record as markdown: /tools/jordandalton-servicetitanmcpserver/invoices-getcustomfieldtypes.md
What invoices_getcustomfieldtypes does on ServiceTitan MCP Server
AI agents call invoices_getcustomfieldtypes 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 invoices_getcustomfieldtypes is rated Low
The tool name 'invoices_getcustomfieldtypes' follows a 'get' pattern suggesting it retrieves custom field type definitions for invoices. This is likely a read-only metadata query. However, confidence is lowered due to the empty description providing no confirmation of behavior.
From the tool's definition Tool name contains 'get' which suggests retrieval; description is empty and uninformative.
Attacks that exploit this kind of access
The rule that runs invoices_getcustomfieldtypes 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 invoices_getcustomfieldtypes, this is the rule to start with:
invoices_getcustomfieldtypes 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 invoices_getcustomfieldtypes call is checked against it from then on.
Questions about invoices_getcustomfieldtypes
invoices_getcustomfieldtypes 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 invoices_getcustomfieldtypes: 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.
invoices_getcustomfieldtypes 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 invoices_getcustomfieldtypes 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 invoices_getcustomfieldtypes. 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.
invoices_getcustomfieldtypes 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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