analyzeQueryPerformance

THE RISK

Low Risk

Why analyzeQueryPerformance needs a policy

Query performance analysis is a read-only diagnostic operation that examines execution plans and metrics without executing DML operations or modifying data. The blast radius is minimal—worst case, resource overhead from analysis or information disclosure about query structure, neither of which causes data loss or external harm.

From the tool's definition Tool analyzes query performance characteristics of a CQL query; it reads and examines existing data without modifying, deleting, or executing write/destructive operations. The description specifies it 'analyzes' performance (inspection/profiling only).

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

POLICY

How to control analyzeQueryPerformance

PolicyLayer is an MCP gateway — it sits between your AI agents and AWS S3 Tables MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for analyzeQueryPerformance:

policy.json

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

analyzeQueryPerformance 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 AWS S3 Tables 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

Related tools and policies

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All 805 AWS S3 Tables MCP Server tools →

Read tools on other servers

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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 analyzeQueryPerformance

What does the analyzeQueryPerformance tool do? +

Analyzes the performance characteristics of a CQL query - args: keyspace, query. It is categorised as a Read tool in the AWS S3 Tables MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on analyzeQueryPerformance? +

Register the AWS S3 Tables MCP Server MCP server in PolicyLayer and add a rule for analyzeQueryPerformance: 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 S3 Tables MCP Server. Nothing to install.

What risk level is analyzeQueryPerformance? +

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

Can I rate-limit analyzeQueryPerformance? +

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

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

analyzeQueryPerformance is provided by the AWS S3 Tables MCP Server MCP server (awslabs.s3-tables-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 AWS S3 Tables MCP Server tool call.

Start from AWS S3 Tables 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 →