scope_force_trigger · LeCroy Oscilloscope MCP: Risk & Policy

WHAT IT DOES

What scope_force_trigger does on LeCroy Oscilloscope MCP

AI agents invoke scope_force_trigger to trigger actions in LeCroy Oscilloscope MCP. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why scope_force_trigger needs a policy

This tool sends a SCPI command to force an immediate hardware trigger on the oscilloscope, causing it to capture a waveform. This is an active external operation that affects physical lab equipment. It is not purely reading data, nor is it destructive or financial — it executes a command that triggers hardware behavior, making 'Execute' the appropriate category.

From the tool's definition Force an immediate trigger event (FRTR)

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

scope_force_trigger Rate-limited

scope_force_trigger stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "scope_force_trigger": {
      "limits": [
        {
          "counter": "scope_force_trigger_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

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

FAQ

Questions about scope_force_trigger

What does the scope_force_trigger tool do? +

Force an immediate trigger event (FRTR). It is categorised as a Execute tool in the LeCroy Oscilloscope MCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on scope_force_trigger? +

Register the LeCroy Oscilloscope MCP server in PolicyLayer and add a rule for scope_force_trigger: 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 LeCroy Oscilloscope MCP. Nothing to install.

What risk level is scope_force_trigger? +

scope_force_trigger is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit scope_force_trigger? +

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

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

scope_force_trigger is provided by the LeCroy Oscilloscope MCP server (lucasgerads/lecroy-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.