Low Risk

list_agent_runtimes

list_agent_runtimes

How to control list_agent_runtimes ↓

What list_agent_runtimes does on Amazon Location Service MCP Server

AI agents call list_agent_runtimes 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.

Low Risk

Why list_agent_runtimes needs a policy

The tool appears to list or query existing agent runtimes, which is a data retrieval operation with no side effects. While the description is empty (reducing confidence slightly), the naming convention is conventional for read-only API operations. The blast radius of misuse is minimal—an agent would only gain visibility into runtime information.

From the tool's definition Tool name 'list_agent_runtimes' indicates retrieval of runtime information; no verb suggesting modification, deletion, or code execution. The 'list_' prefix is a strong signal for read-only enumeration operations.

Documented attack patterns abuse exactly the kind of access list_agent_runtimes gives an agent:

How to control list_agent_runtimes

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_agent_runtimes:

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_agent_runtimes": {}
  }
}

list_agent_runtimes is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

  1. Create a free account and register Amazon Location Service MCP Server — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
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Related tools and policies

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Questions about list_agent_runtimes

What does the list_agent_runtimes tool do? +

list_agent_runtimes. It is categorised as a Read tool in the Amazon Location Service MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_agent_runtimes? +

Register the Amazon Location Service MCP Server MCP server in PolicyLayer and add a rule for list_agent_runtimes: 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.

What risk level is list_agent_runtimes? +

list_agent_runtimes is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit list_agent_runtimes? +

Yes. Add a rate_limit block to the list_agent_runtimes 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.

How do I block list_agent_runtimes completely? +

Set action: deny in the PolicyLayer policy for list_agent_runtimes. 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.

What MCP server provides list_agent_runtimes? +

list_agent_runtimes 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.

Enforce policy on every Amazon Location Service MCP Server tool call.

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.

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