sorted_set_rank

THE RISK

Low Risk

Why sorted_set_rank needs a policy

This tool retrieves the rank (position) of a member in a sorted set, which is a read-only query operation with no side effects. The description clearly indicates it only fetches data without modifying anything.

From the tool's definition Get rank of member in sorted set

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

POLICY

How to control sorted_set_rank

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 sorted_set_rank:

policy.json

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

sorted_set_rank 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 Redshift 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 →

Free to start. No card required.

EXPLORE

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All 805 Amazon Redshift MCP Server tools →

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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 sorted_set_rank

What does the sorted_set_rank tool do? +

Get rank of member in sorted set. 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 sorted_set_rank? +

Register the Amazon Redshift MCP Server MCP server in PolicyLayer and add a rule for sorted_set_rank: 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 sorted_set_rank? +

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

Can I rate-limit sorted_set_rank? +

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

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

sorted_set_rank 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.

CHECK YOUR STACK →