configs_import · CyPerf MCP Server MCP: Risk & Policy

WHAT IT DOES

What configs_import does on CyPerf MCP Server

AI agents use configs_import to create or update resources in CyPerf MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your CyPerf MCP Server environment.

WHY IT NEEDS A POLICY

Why configs_import needs a policy

This tool imports configurations, which modifies system state by loading external configuration files into the CyPerf system. This is a reversible write operation (configurations can be updated or replaced), not a read-only query. It is not destructive because configurations can be modified again, and there is no evidence it executes arbitrary code or performs financial transactions.

From the tool's definition Tool name 'configs_import' and description 'Import configuration(s) from a local file' indicate the tool reads external data and applies it to the system, creating or modifying configurations.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

configs_import Rate-limited

configs_import 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "configs_import": {
      "limits": [
        {
          "counter": "configs_import_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

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

FAQ

Questions about configs_import

What does the configs_import tool do? +

[Configurations] Import configuration(s) from a local file. It is categorised as a Write tool in the CyPerf MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on configs_import? +

Register the CyPerf MCP Server MCP server in PolicyLayer and add a rule for configs_import: 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 CyPerf MCP Server. Nothing to install.

What risk level is configs_import? +

configs_import is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit configs_import? +

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

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

configs_import is provided by the CyPerf MCP Server MCP server (keysight/cyperf-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.