system_eula · CyPerf MCP Server MCP: Risk & Policy

WHAT IT DOES

What system_eula does on CyPerf MCP Server

AI agents use system_eula 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 system_eula needs a policy

The tool can both read (check) and write (accept) the EULA. Accepting a EULA is a legal commitment and modifies system state, making Write the most applicable category. Misuse could result in unintended acceptance of license terms on behalf of an organization.

From the tool's definition Check or accept the End User License Agreement

Risk signalsAdmin/system-level operation

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

system_eula Rate-limited

system_eula 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": {
    "system_eula": {
      "limits": [
        {
          "counter": "system_eula_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 system_eula

What does the system_eula tool do? +

[System] Check or accept the End User License Agreement. 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 system_eula? +

Register the CyPerf MCP Server MCP server in PolicyLayer and add a rule for system_eula: 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 system_eula? +

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

Can I rate-limit system_eula? +

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

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

system_eula 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.