AI agents call list-pricing-rules to retrieve information from Amazon Location Service MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool appears to retrieve or query pricing rule data from the AWS Location Service without modifying, deleting, or executing any operations. No side effects are described or implied by the tool name. The empty description lowers confidence slightly, but the 'list' verb provides strong categorical signal. Risk is low because reading pricing configuration data presents minimal security exposure.
From the tool's definition The tool name 'list-pricing-rules' uses the verb 'list', which is explicitly classified as a Read operation in the guidance ('search, list, get, fetch').
Documented attack patterns abuse exactly the kind of access list-pricing-rules gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Amazon Location Service MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for list-pricing-rules:
{
"version": "1",
"default": "deny",
"tools": {
"list-pricing-rules": {}
}
}list-pricing-rules is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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list-pricing-rules. It is categorised as a Read tool in the Amazon Location Service MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Amazon Location Service MCP Server MCP server in PolicyLayer and add a rule for list-pricing-rules: 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 Amazon Location Service MCP Server. Nothing to install.
list-pricing-rules 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-pricing-rules 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-pricing-rules. 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-pricing-rules is provided by the Amazon Location Service MCP Server MCP server (awslabs.aws-location-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Amazon Location Service MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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805 Amazon Location Service MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.