sorted_set_range_by_lex · AWS IoT SiteWise MCP Server MCP

WHAT IT DOES

What sorted_set_range_by_lex does on AWS IoT SiteWise MCP Server

AI agents call sorted_set_range_by_lex as a supporting operation in AWS IoT SiteWise MCP Server workflows.

WHY IT NEEDS A POLICY

Why sorted_set_range_by_lex needs a policy

With no description available, classification is uncertain. The tool name suggests a read/query operation on a sorted set by lexicographic range (common in Redis), but its presence on an AWS IoT SiteWise server is anomalous. Given the ambiguity and empty description, confidence is very low. Best guess is Read, but categorizing as Other due to the mismatch and lack of evidence.

From the tool's definition Tool description is empty and uninformative; tool name 'sorted_set_range_by_lex' suggests a Redis-style sorted set lexicographic range query (Read operation), but this is inconsistent with an AWS IoT SiteWise MCP server context.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

sorted_set_range_by_lex Rate-limited

sorted_set_range_by_lex gets a rate cap, and everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "sorted_set_range_by_lex": {
      "limits": [
        {
          "counter": "sorted_set_range_by_lex_rate",
          "window": "minute",
          "max": 60,
          "scope": "grant"
        }
      ]
    }
  }
}

SET A RULE FOR THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches AWS IoT SiteWise MCP Server, so you can run agents against it safely.

FAQ

Questions about sorted_set_range_by_lex

What does the sorted_set_range_by_lex tool do? +

sorted_set_range_by_lex. It is categorised as a Other tool in the AWS IoT SiteWise MCP Server MCP Server, which means it performs auxiliary operations.

How do I enforce a policy on sorted_set_range_by_lex? +

Register the AWS IoT SiteWise MCP Server MCP server in PolicyLayer and add a rule for sorted_set_range_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 AWS IoT SiteWise MCP Server. Nothing to install.

What risk level is sorted_set_range_by_lex? +

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

Can I rate-limit sorted_set_range_by_lex? +

Yes. Add a rate_limit block to the sorted_set_range_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_range_by_lex completely? +

Set action: deny in the PolicyLayer policy for sorted_set_range_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_range_by_lex? +

sorted_set_range_by_lex is provided by the AWS IoT SiteWise MCP Server MCP server (awslabs.aws-iot-sitewise-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.