set_simple_trigger · PicoScope MCP Server MCP: Risk & Policy

WHAT IT DOES

What set_simple_trigger does on PicoScope MCP Server

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

WHY IT NEEDS A POLICY

Why set_simple_trigger needs a policy

Based on the tool name, it likely configures (writes) a trigger condition on the PicoScope device. Trigger configuration is a reversible setting change. Confidence is reduced due to the empty description. Given sibling tools like configure_channel and connect_device that are clearly Write-category, this fits the same pattern.

From the tool's definition Tool name 'set_simple_trigger' suggests configuring a trigger setting on the oscilloscope; description is empty and uninformative.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

set_simple_trigger Rate-limited

set_simple_trigger 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": {
    "set_simple_trigger": {
      "limits": [
        {
          "counter": "set_simple_trigger_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 PicoScope MCP Server, so you can run agents against it safely.

FAQ

Questions about set_simple_trigger

What does the set_simple_trigger tool do? +

set_simple_trigger. It is categorised as a Write tool in the PicoScope 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 set_simple_trigger? +

Register the PicoScope MCP Server MCP server in PolicyLayer and add a rule for set_simple_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 PicoScope MCP Server. Nothing to install.

What risk level is set_simple_trigger? +

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

Can I rate-limit set_simple_trigger? +

Yes. Add a rate_limit block to the set_simple_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 set_simple_trigger completely? +

Set action: deny in the PolicyLayer policy for set_simple_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 set_simple_trigger? +

set_simple_trigger is provided by the PicoScope MCP Server MCP server (markuskreitzer/picoscope_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.