ListAHOReferenceStores

WHAT IT DOES

What ListAHOReferenceStores does on Amazon Bedrock Knowledge Base Retrieval MCP Server

AI agents call ListAHOReferenceStores to retrieve information from Amazon Bedrock Knowledge Base Retrieval MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

THE RISK

Low Risk

Why ListAHOReferenceStores needs a policy

The tool appears to enumerate or retrieve metadata about AHO (Amazon Health Operations) reference stores without side effects. Despite the empty description limiting confidence slightly, the naming convention 'List*' strongly suggests a read-only retrieval operation. In a knowledge base retrieval context, listing stores is a query operation with no destructive, financial, or code execution implications.

From the tool's definition Tool name 'ListAHOReferenceStores' indicates listing/retrieving reference stores (no modification or deletion implied).

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

POLICY

How to control ListAHOReferenceStores

PolicyLayer is an MCP gateway — it sits between your AI agents and Amazon Bedrock Knowledge Base Retrieval MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for ListAHOReferenceStores:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "ListAHOReferenceStores": {}
  }
}

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

Create a free account and register Amazon Bedrock Knowledge Base Retrieval MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

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EXPLORE

Related tools and policies

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Go deeper

Roll out MCP under one policy → Per-person scoped tokens, one central policy, and full audit across every server your team connects.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →
PolicyLayer vs alternatives → How deterministic, per-call MCP policy compares with gateways, identity layers, and authorisation platforms.

FAQ

Questions about ListAHOReferenceStores

What does the ListAHOReferenceStores tool do? +

ListAHOReferenceStores. It is categorised as a Read tool in the Amazon Bedrock Knowledge Base Retrieval MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on ListAHOReferenceStores? +

Register the Amazon Bedrock Knowledge Base Retrieval MCP Server MCP server in PolicyLayer and add a rule for ListAHOReferenceStores: 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 Bedrock Knowledge Base Retrieval MCP Server. Nothing to install.

What risk level is ListAHOReferenceStores? +

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

Can I rate-limit ListAHOReferenceStores? +

Yes. Add a rate_limit block to the ListAHOReferenceStores 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 ListAHOReferenceStores completely? +

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

ListAHOReferenceStores is provided by the Amazon Bedrock Knowledge Base Retrieval MCP Server MCP server (awslabs.bedrock-kb-retrieval-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 Bedrock Knowledge Base Retrieval MCP Server tool call.

Start from Amazon Bedrock Knowledge Base Retrieval 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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