AI agents call get_promql_labels to retrieve information from Awslabs Amazon Sns Sqs without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool name suggests querying metadata (labels) from a Prometheus-compatible metrics system, which is a retrieval operation with no side effects. However, confidence is reduced due to the empty description providing no explicit confirmation of the tool's actual behavior.
From the tool's definition Tool name 'get_promql_labels' suggests retrieval of PromQL metric labels. No destructive, write, or execute operations are indicated by the name. The empty description lowers confidence, but the 'get_' prefix is a strong signal of read-only semantics.
Documented attack patterns abuse exactly the kind of access get_promql_labels gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Awslabs Amazon Sns Sqs, and nothing reaches the server without passing your rules. This is the rule we recommend for get_promql_labels:
{
"version": "1",
"default": "deny",
"tools": {
"get_promql_labels": {}
}
}get_promql_labels is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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get_promql_labels. It is categorised as a Read tool in the Awslabs Amazon Sns Sqs MCP Server, which means it retrieves data without modifying state.
Register the Awslabs Amazon Sns Sqs MCP server in PolicyLayer and add a rule for get_promql_labels: 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 Awslabs Amazon Sns Sqs. Nothing to install.
get_promql_labels is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_promql_labels 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.
Set action: deny in the PolicyLayer policy for get_promql_labels. 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.
get_promql_labels is provided by the Awslabs Amazon Sns Sqs MCP server (awslabs.amazon-sns-sqs-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Awslabs Amazon Sns Sqs, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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