AI agents use sorted_set_add to create or update resources in Awslabs Amazon Sns Sqs — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Awslabs Amazon Sns Sqs environment.
This is a Write category tool because it creates or modifies data (adding members to a sorted set). The operation is reversible (members can be removed or scores updated later). Severity is medium because unauthorized writes to message queues or caches could corrupt application state or cause service disruption, but lack the irreversibility of destructive operations or financial impact.
From the tool's definition Tool name and description indicate 'Add member-score pairs to sorted set' — a data modification operation that creates or updates entries in a sorted data structure.
Documented attack patterns abuse exactly the kind of access sorted_set_add 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 sorted_set_add:
{
"version": "1",
"default": "deny",
"tools": {
"sorted_set_add": {
"limits": [
{
"counter": "sorted_set_add_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}sorted_set_add stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
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Add member-score pairs to sorted set. It is categorised as a Write tool in the Awslabs Amazon Sns Sqs MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Awslabs Amazon Sns Sqs MCP server in PolicyLayer and add a rule for sorted_set_add: 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.
sorted_set_add is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the sorted_set_add 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 sorted_set_add. 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.
sorted_set_add 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.
Free to start. No card required.
805 Awslabs Amazon Sns Sqs tools catalogued and risk-classified — across an index of 43,000+ MCP servers.