filter_devices_by_status

THE RISK

Low Risk

Why filter_devices_by_status needs a policy

This tool retrieves or filters device information based on status criteria. It performs no data creation, modification, deletion, or external execution. The operation is a standard query/search pattern typical of monitoring and analytics systems. Misuse would be limited to information disclosure with minimal blast radius.

From the tool's definition Tool name 'filter_devices_by_status' and description 'Filter devices by operational status' indicate querying and filtering operations without modifying data.

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

POLICY

How to control filter_devices_by_status

PolicyLayer is an MCP gateway — it sits between your AI agents and SD-WAN MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for filter_devices_by_status:

policy.json

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

filter_devices_by_status 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 SD-WAN 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.

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EXPLORE

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Go deeper

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 →

FAQ

Questions about filter_devices_by_status

What does the filter_devices_by_status tool do? +

Filter devices by operational status. It is categorised as a Read tool in the SD-WAN MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on filter_devices_by_status? +

Register the SD-WAN MCP Server MCP server in PolicyLayer and add a rule for filter_devices_by_status: 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 SD-WAN MCP Server. Nothing to install.

What risk level is filter_devices_by_status? +

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

Can I rate-limit filter_devices_by_status? +

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

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

filter_devices_by_status is provided by the SD-WAN MCP Server MCP server (stormbliss/sdwan-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 SD-WAN MCP Server tool call.

Start from SD-WAN 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 →