Get all cities/locations available in a specific timezone region
AI agents call get_cities to retrieve information from Timezone MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves a list of cities within a timezone region—a read-only operation with no side effects. The blast radius of misuse is minimal; an attacker could at worst enumerate timezone data, which is public information. No data is written, deleted, or executed.
From the tool's definition Tool name 'get_cities' and description 'Get all cities/locations available in a specific timezone region' indicate a pure query operation that retrieves timezone location data without modifying, executing, or deleting anything.
Documented attack patterns abuse exactly the kind of access get_cities gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Timezone MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_cities:
{
"version": "1",
"default": "deny",
"tools": {
"get_cities": {}
}
}get_cities is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Get all cities/locations available in a specific timezone region. It is categorised as a Read tool in the Timezone MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Timezone MCP Server MCP server in PolicyLayer and add a rule for get_cities: 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 Timezone MCP Server. Nothing to install.
get_cities 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_cities 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_cities. 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_cities is provided by the Timezone MCP Server MCP server (sam-artuso/demo-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Timezone MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
3 Timezone MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.