Low Risk

list_terminologies

List all available custom terminologies.

How to control list_terminologies ↓

What list_terminologies does on Amazon Data Processing MCP Server

AI agents call list_terminologies to retrieve information from Amazon Data Processing 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_terminologies needs a policy

This tool retrieves and enumerates existing terminologies without modifying, creating, deleting, or executing any operations. It is a straightforward data retrieval operation, consistent with the 'Read' category. The blast radius if misused is minimal—an attacker gains information about available terminologies but cannot alter systems or data. Low severity is appropriate for informational disclosure in this context.

From the tool's definition Tool name 'list_terminologies' and description 'List all available custom terminologies' indicate a query/retrieval operation with no side effects.

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

How to control list_terminologies

PolicyLayer is an MCP gateway — it sits between your AI agents and Amazon Data Processing MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for list_terminologies:

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

list_terminologies 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 Data Processing 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_terminologies

What does the list_terminologies tool do? +

List all available custom terminologies. It is categorised as a Read tool in the Amazon Data Processing MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_terminologies? +

Register the Amazon Data Processing MCP Server MCP server in PolicyLayer and add a rule for list_terminologies: 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 Data Processing MCP Server. Nothing to install.

What risk level is list_terminologies? +

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

Can I rate-limit list_terminologies? +

Yes. Add a rate_limit block to the list_terminologies 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_terminologies completely? +

Set action: deny in the PolicyLayer policy for list_terminologies. 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_terminologies? +

list_terminologies is provided by the Amazon Data Processing MCP Server MCP server (awslabs.aws-dataprocessing-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 Data Processing MCP Server tool call.

Start from Amazon Data Processing 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 Data Processing MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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