sorted_set_remove_by_lex

THE RISK

Critical Risk

Why sorted_set_remove_by_lex needs a policy

This tool irreversibly removes members from a sorted set. Deletion of data by range can affect multiple entries at once, making it potentially impactful. The operation is destructive since removed members cannot be recovered without a backup.

From the tool's definition 'Remove members by lexicographical range' — removes data from a sorted set based on a lexicographical range criterion

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

POLICY

How to control sorted_set_remove_by_lex

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_remove_by_lex:

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "sorted_set_remove_by_lex"
  ]
}

sorted_set_remove_by_lex disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.

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.

RESTRICT THIS TOOL →

Free to start. No card required.

EXPLORE

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All 805 Amazon Redshift MCP Server tools →

Destructive tools on other servers

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Go deeper

Critical-risk tools in Amazon Redshift MCP Server → Every critical-risk tool this server exposes, in one view.
All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Blast radius → How much damage one compromised or confused agent can do — and how to bound it.
Tool call approval → Approval gates on individual tool calls: auto-allow, prompt, or deny.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about sorted_set_remove_by_lex

What does the sorted_set_remove_by_lex tool do? +

Remove members by lexicographical range. It is categorised as a Destructive tool in the Amazon Redshift MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on sorted_set_remove_by_lex? +

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

sorted_set_remove_by_lex is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit sorted_set_remove_by_lex? +

Yes. Add a rate_limit block to the sorted_set_remove_by_lex 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_remove_by_lex completely? +

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

sorted_set_remove_by_lex 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 →