Low Risk

list_datastores

list_datastores

How to control list_datastores ↓

What list_datastores does on Amazon Redshift MCP Server

AI agents call list_datastores to retrieve information from Amazon Redshift 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_datastores needs a policy

Despite the empty description, the naming convention strongly suggests this tool queries and returns a list of datastores. This is a non-destructive read operation with minimal blast radius. The confidence is reduced to 0.75 due to the lack of descriptive detail, but the semantic meaning of 'list' in tool naming conventions reliably indicates a Read category function.

From the tool's definition Tool name 'list_datastores' indicates a listing/enumeration operation. The verb 'list' is a read-only operation that retrieves or queries data without modification.

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

How to control list_datastores

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

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

list_datastores 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 Redshift 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_datastores

What does the list_datastores tool do? +

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

How do I enforce a policy on list_datastores? +

Register the Amazon Redshift MCP Server MCP server in PolicyLayer and add a rule for list_datastores: 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 Redshift MCP Server. Nothing to install.

What risk level is list_datastores? +

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

Can I rate-limit list_datastores? +

Yes. Add a rate_limit block to the list_datastores 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_datastores completely? +

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

list_datastores is provided by the Amazon Redshift MCP Server MCP server (awslabs.redshift-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 Redshift MCP Server tool call.

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

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