AI agents call list_place_categories to retrieve information from LatLng without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only operation that retrieves static reference data (supported place categories). There are no side effects, data modifications, code execution, or destructive operations. It is a simple lookup/enumeration function with minimal blast radius if misused by an AI agent—it cannot cause harm beyond potentially wasting API quota.
From the tool's definition The tool 'list_place_categories' lists/queries supported place categories. The name contains 'list' and the description indicates it retrieves information about available categories without modifying any data.
Attacks that exploit this kind of access
List supported place categories for place search and nearby queries. It is categorised as a Read tool in the LatLng MCP Server, which means it retrieves data without modifying state.
Register the LatLng MCP server in PolicyLayer and add a rule for list_place_categories: 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 LatLng. Nothing to install.
list_place_categories 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 list_place_categories 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 list_place_categories. 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.
list_place_categories is provided by the LatLng MCP server (https://mcp.latlng.work/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
list_place_categories is one line of LatLng's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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